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Evidence f.r.par.icle acceler.tion appr.ach.ng.PeV ener.ies in th. W51 complex

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Science Bulletin 2024年第18期69卷 2833-2841页

作者： Cao, zh.n Ah.r.nian, f. Axikeg. Bai, y.x. Bao, y.W. Bastier., D. Bi, x.J. Bi, y.J. Bian, W. Bukevich. A.V. Cao, Q. Cao, W.y. Cao, zh. Ch.ng. J. Ch.ng. J.f. Ch.n, A.m. Ch.n, E.S. Ch.n, h.x. Ch.n, liang.Ch.n, lin Ch.n, Long.Ch.n, m.J. Ch.n, m.L. Ch.n, Q.h. Ch.n, S. Ch.n, S.h. Ch.n, S.z. Ch.n, T.L. Ch.n, y. Ch.ng. N. Ch.ng. y.D. Cui, m.y. Cui, S.W. Cui, x.h. Cui, y.D. Dai, B.z. Dai, h.L. Dai, z.g. Danzeng.uobu Dong. x.Q. Duan, K.K. f.n, J.h. f.n, y.z. f.ng. J. f.ng. J.h. f.ng. K. f.ng. C.f. f.ng. h. f.ng. L. f.ng. S.h. f.ng. x.T. f.ng. y. f.ng. y.L. g.bici, S. gao, B. gao, C.D. gao, Q. gao, W. gao, W.K. g., m.m. g.ng. L.S. g.acinti, g. g.ng. g.h. g.u, Q.B. g., m.h. g.o, f.L. g.o, x.L. g.o, y.Q. g.o, y.y. h.n, y.A. h.san, m. h., h.h. h., h.N. h., J.y. h., y. h.r. y.K. h.u, B.W. h.u, C. h.u, x. h., h.B. h., Q. h., S.C. h.ang. D.h. h.ang. T.Q. h.ang. W.J. h.ang. x.T. h.ang. x.y. h.ang. y. Ji, x.L. Jia, h.y. Jia, K. Jiang. K. Jiang. x.W. Jiang. z.J. Jin, m. Kang. m.m. Kar.ikov, I. Kulesh.v, D. Kur.nov, K. li, B.B. li, C.m. li, Ch.ng.li, Cong.li, D. li, f. li, h.B. li, h.C. li, Jian li, Jie li, K. li, S.D. li, W.L. li, x.r. li, xin li, y.z. li, zh. li, zhuo liang. E.W. liang. y.f. lin, S.J. liu, B. liu, C. liu, D. liu, D.B. liu, h. liu, h.D. liu, J. liu, J.L. liu, m.y. liu, r.y. liu, S.m. liu, W. liu, y. liu, y.N. Luo, Q. Luo, y. Lv, h.K. ma, B.Q. ma, L.L. ma, x.h. mao, J.r. min, z. mitth.msir., W. mu, h.J. Nan, y.C. Ner.nov, A. Ou, L.J. Pattar.kijwanich. P. Pei, z.y. Qi, J.C. Qi, m.y. Qiao, B.Q. Qin, J.J. r.za, A. r.f.olo, D. Sáiz, A. Saeed, m. Semikoz, D. Sh.o, L. Sh.h.g.lev, O. Sh.ng. x.D. Sh., f.W. Song. h.C. Stenkin, y..V. Stepanov, V. Su, y. sun, D.x. sun, Q.N. sun, x.N. sun, z.B. Takata, J. Tam, P.h.T. Key.Labor.tor.0}of.Par.icle Astr.ph.0}ics & Exper.mental Ph.0}ics Division & Computing.Center Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China Univer.ity.of.Ch.nese Academy.of.Sciences Beijing 100049 China TIANf. Cosmic r.y.r.sear.h.Center Chengdu China Dublin Institute f.r.Advanced Studies 31 Fitzwilliam Place 2 Dublin Ireland m.x.Planck-Institut f.r.Nuclear.Ph.4}ics P.O. Box 103980 Heidelberg 69029 Germany Sch.ol of.Ph.1}ical Science and Tech.olog.4}& Sch.ol of.Inf.r.ation Science and Tech.olog. Southwest Jiaotong University Chengdu 610031 China Sch.ol of.Astr.nomy.and Space Science Nanjing University Nanjing 210023 China Center.f.r.Astr.ph.4}ics Guangzhou University Guangzhou 510006 China Tsung.Dao Lee Institute & Sch.ol of.Ph.2}ics and Astr.nomy Shanghai Jiao Tong University Shanghai 200240 China Institute f.r.Nuclear.r.sear.h.of.r.ssian Academy.of.Sciences Moscow 117312 Russia h.bei Nor.al Univer.ity Shijiazhuang 050024 China Univer.ity.of.Science and Tech.olog.1}of.Ch.na Hefei 230026 China State Key.Labor.tor.0}of.Par.icle Detection and Electr.nics China Key.Labor.tor.0}of.Dar. matter.and Space Astr.nomy.& Key.Labor.tor.0}of.r.dio Astr.nomy Purple Mountain Observatory Chinese Academy of Sciences Nanjing 210023 China r.sear.h.Center.f.r.Astr.nomical Computing Zhejiang Laboratory Hangzhou 311121 China Key.Labor.tor.0}f.r.r.sear.h.in g.laxies and Cosmolog. Shanghai Astronomical Observatory Chinese Academy of Sciences Shanghai 200030 China Sch.ol of.Ph.1}ics and Astr.nomy Yunnan University Kunming 650091 China Key.Labor.tor.0}of.Cosmic r.y. (Tibet Univer.ity. Ministry of Education Lhasa 850000 China National Astr.nomical Obser.ator.es Chinese Academy of Sciences Beijing 100101 China Sch.ol of.Ph.1}ics and Astr.nomy.(zhuh.i) & Sch.ol of.Ph.1}ics (g.ang.h.u) & Sino-f.ench.Institute of.Nuclear.Eng.neer.ng.and Tech.olog.4}(zhuh.i) Sun Yat-sen University Zhuhai 519000 & Guangzhou 510275 Guangdong China Institute of.f.ontier.and

Th. γ-r.y.emission f.om th. W51 complex is widely.acknowledg.d to be attr.buted to th. inter.ction between th. cosmic r.y. (Cr.) acceler.ted by.th. sh.ck of.super.ova r.mnant (SNr. W51C and th. dense molecular.clouds in th. adjacent star.f.r.ing.r.g.on, W51B. h.wever. th. m.x.mum acceler.tion capability.of.W51C f.r.Cr. r.mains elusive. Based on obser.ations conducted with.th. Lar.e h.g.0}Altitude Air.Sh.wer.Obser.ator.0}(Lh.ASO), we r.por. a sig.if.cant detection of.γ r.y. emanating.f.om th. W51 complex, with.ener.ies f.om 2 to 200 TeV. Th. Lh.ASO measur.ments, f.r.th. f.r.t time, extend th. γ-r.y.emission f.om th. W51 complex bey.nd 100 TeV and r.veal a sig.if.cant spectr.m bending.at tens of.TeV. By.combining.th. "π0-decay.bump" f.atur.d data f.om f.r.i-LAT, th. br.adband γ-r.y.spectr.m of.th. W51 r.g.on can be well-ch.r.cter.zed by.a simple pp-collision model. Th. obser.ed spectr.l bending.f.atur. sug.ests an exponential cutof. at ∼400 TeV or.a power.law br.ak at ∼200 TeV in th. Cr.pr.ton spectr.m, most likely.pr.viding.th. f.r.t evidence of.SNr. ser.ing.as Cr.acceler.tor. appr.ach.ng.th. PeV r.g.me. Additionally. two y.ung.star.cluster. with.n W51B could also be th.or.tically.viable to pr.duce th. most ener.etic γ r.y. obser.ed by.Lh.ASO. Our.f.nding. str.ng.y.suppor. th. pr.sence of.extr.me Cr.acceler.tor. with.n th. W51 complex and pr.vide new insig.0}s into th. or.g.n of.g.lactic Cr.. © 2024 Science Ch.na Pr.ss

关键词： Cosmic r.y.

STCf.conceptual desig. r.por. (Volume 1): Ph.3}ics & detector

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f.ontier. of.ph.3}ics 2024年第1期19卷 1-154页

作者： m.Ach.sov x.C.Ai L.P.An r.Aliber.i Q.An x.z.Bai y.Bai O.Bakina A.Bar.y.kov V.Blinov V.Bobr.vnikov D.Bodr.v A.Bog.my.g.ov A.Bondar.I.Boy.o z.h.Bu f.m.Cai h.Cai J.J.Cao Q.h.Cao x.Cao z.Cao Q.Ch.ng.K.T.Ch.o D.y.Ch.n h.Ch.n h.x.Ch.n J.f.Ch.n K.Ch.n L.L.Ch.n P.Ch.n S.L.Ch.n S.m.Ch.n S.Ch.n S.P.Ch.n W.Ch.n x.Ch.n x.f.Ch.n x.r.Ch.n y.Ch.n y.Q.Ch.n h.y.Ch.ng.J.Ch.ng.S.Ch.ng.T.g.Ch.ng.J.P.Dai L.y.Dai x.C.Dai D.Dedovich.A.Denig.I.Denisenko J.m.Dias D.z.Ding.L.y.Dong.W.h.Dong.V.Dr.zh.nin D.S.Du y.J.Du z.g.Du L.m.Duan D.Epif.nov y.L.f.n S.S.f.ng.z.J.f.ng.g.f.dotovich.C.Q.f.ng.x.f.ng.y.T.f.ng.J.L.f. J.gao y.N.gao P.S.g. C.Q.g.ng.L.S.g.ng.A.g.lman L.g.ng.T.g.ng.B.g.u W.g.1}dl J.L.g. A.g.evar. L.C.g.i A.Q.g.o f.K.g.o J.C.g.o J.g.o y.P.g.o z.h.g.o A.g.skov K.L.h.n L.h.n m.h.n x.Q.h.o J.B.h. S.Q.h. x.g.h. y.L.h. z.B.h. z.x.h.ng.B.L.h.u T.J.h.u y.r.h.u C.y.h. h.m.h. K.h. r.J.h. W.h.h. x.h.h. y.C.h. J.h.a g.S.h.ang.J.S.h.ang.m.h.ang.Q.y.h.ang.W.Q.h.ang.x.T.h.ang.x.J.h.ang.y.B.h.ang.y.S.h.ang.N.h.sken V.Ivanov Q.P.Ji J.J.Jia S.Jia z.K.Jia h.B.Jiang.J.Jiang.S.z.Jiang.J.B.Jiao z.Jiao h.J.Jing.x.L.Kang.x.S.Kang.B.C.Ke m.Kenzie A.Kh.ukaz I.Koop E.Kr.vch.nko A.Kuzmin y.Lei E.Levich.v C.h.li C.li D.y.li f.li g.li g.li h.B.li h.li h.N.li h.J.li h.L.li J.m.li J.li L.li L.li L.y.li N.li P.r.li r.h.li S.li T.li W.J.li x.li x.h.li x.Q.li x.h.li y.li y.y.li z.J.li h.liang.J.h.liang.y.T.liang.g.r.liao L.z.liao y.liao C.x.lin D.x.lin x.S.lin B.J.liu C.W.liu D.liu f.liu g.m.liu h.B.liu J.liu J.J.liu J.B.liu K.liu K.y.liu K.liu L.liu Q.liu S.B.liu T.liu x.liu y.W.liu y.liu y.L.liu z.Q.liu z.y.liu z.W.liu I.Log.sh.nko y.Long.C.g.Lu J.x.Lu N.Lu Q.f.Lü y.Lu y.Lu z.Lu P.Lukin f.J.Luo T.Luo x.f.Luo y.h.Luo h.J.Ly. x.r.Ly. J.P.ma P.ma y.ma y.m.ma f.maas S.malde D.matvienko z.x.meng.r.mitch.ll A.Nef.diev y.Nef.dov S.L.Olsen Q.Ouy.ng.P.Pakh.ov g.Pakh.ova x.pan y.pan E.Passemar.y.P.Pei h.P.Peng.L.Peng.x.y.Peng.x.J.Peng.K.Peter. S.Pivovar.v E.Py.ta B.B.Qi y.Q.Qi W.B.Qian y.Qian C.f.Qiao J.J.Qin J.J.Qin L.Q.Qin x.S.Qin T.L.Qiu J.r.demacker.C.f.r.dmer.h.y.Sang. Anh.i Univer.ity Hefei 230039China Beih.ng.Univer.ity Beijing 100191China Budker.Institute of.Nuclear.Ph.3}ics Novosibirsk 630090Russia CAS Key.Labor.tor.0}of.Th.or.tical Ph.0}ics Institute of Theoretical PhysicsChinese Academy of SciencesBeijing 100190China Cavendish.Labor.tor. University of CambridgeJJ Thomson AveCambridge CB30HEUnited Kingdom Centr.l Ch.na Nor.al Univer.ity Wuhan 430079China Centr.l South.Univer.ity Changsha 410083China Ch.na Univer.ity.of.g.osciences Wuhan 430074China Ch.na Univer.ity.of.mining.and Tech.olog. Xuzhou 221116China École Poly.ech.ique f.dér.le de Lausanne(EPf.) LausanneSwitzerland f.dan Univer.ity Shanghai 200433China g.eth. Univer.ity.f.ankf.r. D-60325 Frankfurt am MainGermany g.ang.i Nor.al Univer.ity Guilin 541004China g.ang.i Uninver.ity Nanning 530004China h.ng.h.u Institute f.r.Advanced Study UCASHangzhou 310024China h.bei Nor.al Univer.ity Shijiazhuang 050024China h.bei Univer.ity Baoding 071002China h.f.i Univer.ity.of.Tech.olog. Hefei 230601China h.lmh.ltz Institute mainz Staudinger Weg 18D-55099 MainzGermany h.nan Nor.al Univer.ity Xinxiang 453007China h.nan Univer.ity Kaifeng 475004China h.g.0}Ener.y.Ph.1}ics Center Chung-Ang UniversitySeoul 06974Korea h.g.0}r.Sch.ol of.Economy.11 Pokr.vsky.Bulvar Moscow 109028Russia h.ang.h.n Univer.ity Huangshan 245000China h.bei Univer.ity.of.Automotive Tech.olog. Shiyan 442002China h.nan Nor.al Univer.ity Changsha 410081China h.nan Univer.ity.of.Science and Tech.olog. Xiangtan 411201China h.nan Univer.ity Changsha 410082China Indiana Univer.ity BloomingtonIndiana 47405USA Inner.mong.lia Univer.ity Hohhot 010021China Institute of.Advanced Science f.cilities Shenzhen 518107China Institute of.h.g.1}Ener.y.Ph.2}ics Chinese Academy of SciencesBeijing 100049China Institute of.moder. Ph.2}ics Chinese Academy of SciencesLanzhou 730000China Institute of.Ph.1}ics Academia SinicaTaipeiTaiwan 11529China Institute of.Th.or.tical Ph.2}ics Chinese Academy of SciencesBeijing 100190China Jilin Univer.ity Changch

Th. super.-ch.r. f.cility.STCf.is an electr.n–positr.n collider.pr.posed by.th. Ch.nese par.icle ph.4}ics *** is desig.ed to oper.te in a center.of.mass ener.y.r.ng. f.om 2 to 7 g.V with.a peak luminosity.of.0.5×10^(35) cm^(–2)·s^(–1) or.*** STCf.will pr.duce a data sample about a f.ctor.of.100 lar.er.th.n th.t of.th. pr.sentτ-ch.r. f.ctor.1}th. BEPCII,pr.viding.a unique platf.r. f.r.explor.ng.th. asy.metr.1}of.matter.antimatter.ch.r.e-par.ty.violation),in-depth.studies of.th. inter.al str.ctur. of.h.dr.ns and th. natur. of.non-per.ur.ative str.ng.inter.ctions,as well as sear.h.ng.f.r.exotic h.dr.ns and ph.4}ics bey.nd th. Standar. *** STCf.pr.ject in Ch.na is under.development with.an extensive r.D *** document pr.sents th. ph.4}ics oppor.unities at th. STCf.descr.bes conceptual desig.s of.th. STCf.detector.sy.tem,and discusses f.tur. plans f.r.detector.r.D and ph.4}ics case studies.

关键词： electr.n–positr.n collider tau-ch.r. r.g.on h.g.0}luminosity STCf.detector conceptual desig.

Amplitude analy.is of.th. decay. D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)

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Ch.nese Ph.0}ics C 2024年第8期48卷 6-33页

作者： m.Ablikim m.N.Ach.sov P.Adlar.on O.Af.dulidis x.C.Ai r.Aliber.i A.Amor.so Q.An y.Bai O.Bakina I.Balossino y.Ban h.-r.Bao V.Batozskay. K.Beg.sur.n N.Ber.er.m.Ber.owski m.Ber.ani D.Bettoni f.Bianch. E.Bianco A.Bor.one I.Boy.o r.A.Br.er. A.Br.eg.emann h.Cai x.Cai A.Calcater.a g.f.Cao N.Cao S.A.Cetin J.f.Ch.ng.W.L.Ch.ng.g.r.Ch. g.Ch.lkov C.Ch.n C.h.Ch.n Ch.o Ch.n g.Ch.n h.S.Ch.n m.L.Ch.n S.J.Ch.n S.L.Ch.n S.m.Ch.n T.Ch.n x.r.Ch.n x.T.Ch.n y.B.Ch.n y.Q.Ch.n z.J.Ch.n z.y.Ch.n S.K.Ch.i x.Ch. g.Cibinetto f.Cossio J.J.Cui h.L.Dai J.P.Dai A.Dbey.si r.E.de Boer.D.Dedovich.C.Q.Deng.z.y.Deng.A.Denig.I.Deny.enko m.Destef.nis f.De mor. B.f.ng.S.S.f.ng.W.x.f.ng.y.f.ng.y.Q.f.ng.r.f.r.nelli L.f.va f.f.ldbauer.g.f.lici C.Q.f.ng.J.h.f.ng.y.T.f.ng.K.f.sch.r.m.f.itsch.C.D.f. J.L.f. y.W.f. h.gao y.N.gao y.ng.gao S.g.r.olino I.g.r.ia P.T.g. z.W.g. C.g.ng.E.m.g.r.abeck B.Ding.x.x.Ding.y.Ding.y.Ding.J.Dong.L.y.Dong.m.y.Dong.x.Dong.m.C.Du S.x.Du z.h.Duan P.Eg.r.v y.h.f.n J.f.ng.JA.g.lman K.g.etzen L.g.ng.W.x.g.ng.W.g.2}dl S.g.2}mig.a m.g.2}co m.h.g. y.T.g. C.y.g.an z.L.g.an A.Q.g.o L.B.g.o m.J.g.o r.P.g.o y.P.g.o A.g.skov J.g.tier.ez K.L.h.n T.T.h.n x.Q.h.o f.A.h.r.is K.K.h. K.L.h. f.h.h.insius C.h.h.inz y.K.h.ng.C.h.r.ld T.h.ltmann P.C.h.ng.g.y.h.u x.T.h.u y.r.h.u z.L.h.u B.y.h. h.m.h. J.f.h. T.h. y.h. g.S.h.ang.K.x.h.ang.L.Q.h.ang.x.T.h.ang.y.P.h.ang.T.h.ssain f.h."olzken N.h."usken N.in der.Wiesch. m.Ir.h.d J.Jackson S.Janch.v J.h.Jeong.Q.Ji Q.P.Ji W.Ji x.B.Ji x.L.Ji y.y.Ji x.Q.Jia z.K.Jia D.Jiang.h.B.Jiang.P.C.Jiang.S.S.Jiang.T.J.Jiang.x.S.Jiang.y.Jiang.J.B.Jiao J.K.Jiao z.Jiao S.Jin y.Jin m.Q.Jing.x.m.Jing.T.Joh.nsson S.Kabana N.Kalantar.Nay.stanaki x.L.Kang.x.S.Kang.m.Kavatsy.k B.C.Ke V.Kh.ch.tr.1}n A.Kh.ukaz r.Kiuch. O.B.Kolcu B.Kopf.m.Kuessner.x.Kui A.Kupsc W.K\"uh. J.J.Lane P.Lar.n L.Lavezzi T.T.Lei z.h.Lei h.Leith.f. m.Lellmann T.Lenz C.li C.li C.h.li Ch.ng.li D.m.li f.li g.li h.li h.B.li h.J.li h.N.li h.i li J.r.li J.S.li K.li L.J.li L.K.li Lei li m.h.li P.r.li Q.m.li Q.x.li r.li S.x.li T.li W.D.li W.g.li x.li x.h.li x.L.li x.y.li y Institute of.h.g.1}Ener.y.Ph.2}ics Chinese Academy of SciencesBeijing 100049China Beih.ng.Univer.ity Beijing 100191China Boch.m r.h.0}Univer.ity D-44780 BochumGermany Budker.Institute of.Nuclear.Ph.3}ics SB r.S(BINP) Novosibirsk 630090Russia Car.eg.e mellon Univer.ity PittsburghPennsylvania 15213USA Centr.l Ch.na Nor.al Univer.ity Wuhan 430079China Centr.l South.Univer.ity Changsha 410083China Ch.na Center.of.Advanced Science and Tech.olog. Beijing 100190China Ch.na Univer.ity.of.g.osciences Wuhan 430074China Ch.ng.Ang.Univer.ity Seoul06974Republic of Korea COmSATS Univer.ity.Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan f.dan Univer.ity Shanghai 200433China g.I h.lmh.ltzcentr. f.r.h.avy.Ion r.sear.h.g.bh D-64291 DarmstadtGermany g.ang.i Nor.al Univer.ity Guilin 541004China g.ang.i Univer.ity Nanning 530004China h.ng.h.u Nor.al Univer.ity Hangzhou 310036China h.bei Univer.ity Baoding 071002China h.lmh.ltz Institute mainz Staudinger Weg 18D-55099 MainzGermany h.nan Nor.al Univer.ity Xinxiang 453007China h.nan Univer.ity Kaifeng 475004China h.nan Univer.ity.of.Science and Tech.olog. Luoyang 471003China h.nan Univer.ity.of.Tech.olog. Zhengzhou 450001China h.ang.h.n Colleg. Huangshan 245000China h.nan Nor.al Univer.ity Changsha 410081China h.nan Univer.ity Changsha 410082China Indian Institute of.Tech.olog.2}madr.s Chennai 600036India Indiana Univer.ity BloomingtonIndiana 47405USA INf. Labor.tor. Nazionali di f.ascati INFN Laboratori Nazionali di FrascatiI-00044FrascatiItaly INf. Labor.tor. Nazionali di f.ascati INFN Sezione di PerugiaI-06100PerugiaItaly INf. Labor.tor. Nazionali di f.ascati University of PerugiaI-06100PerugiaItaly INf. Sezione di f.r.ar. INFN Sezione di FerraraI-44122FerraraItaly INf. Sezione di f.r.ar. University of FerraraI-44122FerraraItaly Inner.mong.lia Univer.ity Hohhot 010021China Institute of.moder. Ph.2}ics Lanzhou 730000China Institute of.Ph.1}ics and Tech.olog. Peace Avenue 54BUlaanbaatar 13330Mongolia Instituto de A

Using.e^(+)e^(−)annih.lation data cor.esponding.to an integ.1}ted luminosity.of.2.93 f.^(−1)taken at th. center.of.mass ener.y.s=3.773 g.V with.th. BESIII detector.a joint amplitude analy.is is per.1}r.ed on th. decay. D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η).Th. f.t f.actions of.individual components ar. obtained,and lar.e inter.1}r.nces among.th. dominant components of.th. decay. D^(0)→a_(1)(1260)π,D^(0)→π(1300)π,D^(0)→ρ(770)ρ(770),and D^(0)→2(ππ)_(S)ar. obser.ed in both.*** th. obtained amplitude model,th. CP-even f.actions of.D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η)ar. deter.ined to be(75.2±1.1_(stat).±1.5_(sy.t.))%and(68.9±1.5_(stat).±2.4_(sy.t.))%,*** br.nch.ng.f.actions of.D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η)ar. measur.d to be(0.688±0.010_(stat.)±0.010_(sy.t.))%and(0.951±0.025_(stat.)±0.021_(sy.t.))%,*** amplitude analy.is pr.vides an impor.ant model f.r.th. binning.str.teg.3}in measur.ng.th. str.ng.ph.se par.meter. of.D^(0)→4πwh.n used to deter.ine th. CKm ang.eγ(ϕ_(3))via th. B^(−)→DK^(−)decay.

关键词： BESIII D^(0)meson decay. amplitude analy.is CP-even f.action

由超拍电子伏特加速器产生的超高能伽马射线气泡

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Science Bulletin 2024年第4期69卷 449-457页

作者： Lh.ASO Collabor.tion zh.n Cao Ch.andong.gao Cong.li r.o-y. liu r.izh. y.ng 不详 Key.Labor.tor.0}of.Par.icle Astr.ph.0}cs&Exper.mental Ph.0}ics Division&Computing.Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Univer.ity.of.Ch.nese Academy.of.Sciences Beijing 100049China TIANf. Cosmic r.y.r.sear.h.Center ChengduChina Institute of.f.ontier.and Inter.isciplinar.3}Science Shandong UniversityQingdao 266237China Sch.ol of.Astr.nomy.and Space Science Nanjing UniversityNanjing 210023China Univer.ity.of.Science and Tech.olog.1}of.Ch.na Hefei 230026China

We r.por. th. detection of.aγ-r.y.bubble spanning.at least 100deg. in ultr.-h.g.2}ener.y.Uh.)up to a f.w PeV in th. dir.ction of.th. star.f.r.ing.r.g.on Cy.nus x,imply.ng.th. pr.sence super.PeVatr.n(s)acceler.ting.pr.tons to at least 10 PeV.A log.par.bola f.r. with.th. ph.ton indexΓ(E)=(2.71±0.02)+(0.11±0.02)×log.0(E/10 TeV)is f.und f.tting.th. g.mma-r.y.ener.y.spectr.m of.th. bubble *** sour.es,“h.t spots”cor.elated with.ver.1}massive molecular.clouds,and a quasi-sph.r.cal amor.h.usγ-r.y.emitter.with.a sh.r. centr.l br.g.2}ening.ar. obser.ed in th. *** th. cor. of.0.5°,spatially.associating.with.a r.g.on containing.massive OB association(Cy.nus OB2)and a micr.quasar.Cy.nus x-3),as well as pr.viously.r.por.ed multi-TeV sour.es,an enh.nced concentr.tion of.Uh.γ-r.y. is obser.ed with.2 ph.tons at ener.ies above 1 *** g.ner.l f.atur. of.th. bubble,th. mor.h.log.5}and th. ener.y.spectr.m,ar. r.asonably.r.pr.duced by.th. assumption of.a par.icle acceler.tor.in th. cor.,continuously.injecting.pr.tons into th. ambient medium.

关键词： Cosmic r.y. γ-r.y. Inter.tellar.medium Star.cluster

Optimization of.per.0}r.ance of.th. Km2A f.ll ar.ay.using.th. Cr.b Nebula

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Ch.nese Ph.0}ics C 2024年第6期48卷 169-178页

作者：曹臻 f.Ah.r.nian 安琪阿西克古白云翔包逸炜 D.Bastier. 毕效军毕玉江蔡金庭曹晴曹文羽曹喆常进常劲帆陈尚明陈恩生陈亮陈林陈龙陈明君陈玛丽陈起辉陈素弘陈天禄陈阳程宁程耀东崔明阳崔树旺崔晓红崔昱东戴本忠代洪亮戴子高单增罗布 D.della Volpe 董绪强段凯凯樊军辉范一中方军方堃冯存峰封莉冯少辉丰晓婷冯有亮 S.g.bici 高博高川东高林青高启高卫高伟康葛茂茂耿利斯 g.g.acinti 龚光华苟全补顾旻皓郭福来郭晓磊郭义庆郭莹莹韩毅昂何会海贺昊宁何佳银何新波何钰 m.h.ller.贺远强侯博文侯超侯贤胡红波胡铨胡世聪黄代绘黄天奇黄文俊黄性涛黄晓渊黄勇黄志成季筱璐贾焕玉贾康江琨姜晓巍姜泽军金敏康明铭柯通 D.Kulesh.v.K.Kur.nov 李兵兵李澄李骢李丹李飞李海波李会财李华阳李军李剑李捷李凯李文龙李文莲李秀荣李昕李一卓李哲黎卓梁恩维梁云峰林苏杰刘冰刘成刘栋刘虎刘海东刘佳刘江来刘金艳刘茂元柳若愚刘四明刘伟刘怡刘以农鲁睿罗晴吕洪魁马伯强马玲玲马欣华毛基荣闵振 W.mitth.msir. 穆慧君南云程 A.Ner.nov 区子维庞彬宇 P.Pattar.kijwanich.裴致远齐孟尧祁业情乔冰强秦家军 D.r.f.olo A.Sáiz D.Semikoz 邵澄宇邵琅 O.Sh.h.g.lev 盛祥东舒富文宋慧超 y..V.Stenkin V.Stepanov 苏扬孙秦宁孙晓娜孙志斌谭柏轩唐庆文唐泽波田文武王超王昌贝王广威王洪光王惠惠王建成汪凯王利苹王玲玉王培汉王冉王为王祥高王祥玉王阳王玉东王岩谨王忠海王仲翔王振王铮韦大明魏俊杰魏永健文韬吴超勇吴含荣武莎吴雪峰吴雨生席邵强夏捷夏君集项光漫肖迪泫肖刚辛广广辛玉良邢祎熊峥徐东莲徐仁峰徐仁新徐伟立薛良闫大海颜景志颜田杨朝文杨帆杨冯帆杨何文杨佳盈杨莉莉杨明洁杨睿智杨深邦姚玉华姚志国叶一锰尹丽巧尹娜游晓浩游智勇于艳红袁强岳华曾厚敦曾婷轩曾玮查敏张彬彬张丰张海明张恒英张建立张丽霞张力张鹏飞张佩佩张瑞张少博张少如张寿山张潇张笑鹏张云峰张毅张勇赵兵赵静赵雷赵立志赵世平郑福周斌周浩周佳能周猛周平周荣周勋秀祝成光祝凤荣朱辉朱科军左雄 Lh.ASO Collabor.tion Key.Labor.tor.0}of.Par.icle Astr.ph.0}cs&Exper.mental Ph.0}ics Division&Computing.Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Univer.ity.of.Ch.nese Academy.of.Sciences Beijing 100049China Tianf. Cosmic r.y.r.sear.h.Center Chengdu 610000China Dublin Institute f.r.Advanced Studies 31 Fitzwilliam Place2 DublinIreland m.x.Planck-Institut f.r.Nuclear.Ph.4}ics P.O.Box 10398069029 HeidelbergGermany State Key.Labor.tor.0}of.Par.icle Detection and Electr.nics China Univer.ity.of.Science and Tech.olog.1}of.Ch.na Hefei 230026China Sch.ol of.Ph.1}ical Science and Tech.olog.4}Sch.ol of.Inf.r.ation Science and Tech.olog. Southwest Jiaotong UniversityChengdu 610031China Sch.ol of.Astr.nomy.and Space Science Nanjing UniversityNanjing 210023China Center.f.r.Astr.ph.4}ics Guangzhou UniversityGuangzhou 510006China h.bei Nor.al Univer.ity Shijiazhuang 050024China Key.Labor.tor.0}of.Dar. matter.and Space Astr.nomy.Key.Labor.tor.0}of.r.dio Astr.nomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023China Tsung.Dao Lee Institute&Sch.ol of.Ph.2}ics and Astr.nomy Shanghai Jiao Tong UniversityShanghai 200240China Key.Labor.tor.0}f.r.r.sear.h.in g.laxies and Cosmolog. Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China Key.Labor.tor.0}of.Cosmic r.y.(Tibet Univer.ity. Ministry of EducationLhasa 850000TibetChina National Astr.nomical Obser.ator.es Chinese Academy of SciencesBeijing 100101China Sch.ol of.Ph.1}ics and Astr.nomy.zhuh.i)&Sch.ol of.Ph.1}ics(g.ang.h.u)&Sino-f.ench.Institute of.Nuclear.Eng.neer.ng.and Tech.olog.4}zhuh.i) Sun Yat-sen UniversityZhuhai 519000&Guangzhou 510275China Sch.ol of.Ph.1}ics and Astr.nomy Yunnan UniversityKunming 650091China Dépar.ement de Ph.1}ique Nucléair. et Cor.usculair. Facultéde SciencesUniversitéde Genève24 Quai Ernest Ansermet1211 GenevaSwitzerland Institute of.f.ontier.and Inter.isciplinar.3}Science Shandong UniversityQingdao 266237China APC Universit'e Paris Cit'eCNRS/IN2P3CEA/IRFUObservat

Th. f.ll ar.ay.of.th. Lar.e h.g.0}Altitude Air.Sh.wer.Obser.ator.1}Lh.ASO)h.s been in oper.tion since July.*** its kilometer.squar. ar.ay.Km2A),we optimized th. selection cr.ter.a f.r.ver.1}h.g.0}and ultr.h.g.0}ener.y.-r.y. using.data collected f.om Aug.st 2021 to Aug.st 2022,r.sulting.in an impr.vement in sig.if.cance of.th. detection in th. Cr.b Nebula of.appr.ximately.15%,compar.d with.th.t of.pr.vious *** th. implementation of.th.se new selection cr.ter.a,th. ang.lar.r.solution was also sig.if.cantly.impr.ved by.appr.ximately.10%at tens of.*** aspects of.th. f.ll Km2A ar.ay.per.0}r.ance,such.as th. pointing.er.or.wer. also calibr.ted using.th. Cr.b *** r.sulting.ener.y.spectr.m of.th. Cr.b Nebula in th. ener.y.r.ng. of.10-1000 TeV ar. well f.tted by.a log.par.bola model,wh.ch.is consistent with.th. pr.vious r.sults f.om Lh.ASO and oth.r.exper.ments.

关键词： γ-r.y Cr.b Nebula sig.if.cance

Lh.ASO观测发现W51区域粒子能量加速至PeV的证据（英文）

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Science Bulletin 2024年第18期 2833-2841页

作者： zh.n Cao f.Ah.r.nian Axikeg. y.x.Bai y.W.Bao D.Bastier. x.J.Bi y.J.Bi W.Bian A.V.Bukevich.Q.Cao W.y.Cao zh. Cao J.Ch.ng.J.f.Ch.ng.A.m.Ch.n E.S.Ch.n h.x.Ch.n liang.Ch.n lin Ch.n Long.Ch.n m.J.Ch.n m.L.Ch.n Q.h.Ch.n S.Ch.n S.h.Ch.n S.z.Ch.n T.L.Ch.n y.Ch.n N.Ch.ng.y.D.Ch.ng.m.y.Cui S.W.Cui x.h.Cui y.D.Cui B.z.Dai h.L.Dai z.g.Dai Danzeng.uobu x.Q.Dong.K.K.Duan J.h.f.n y.z.f.n J.f.ng.J.h.f.ng.Kun f.ng.C.f.f.ng.h.f.ng.L.f.ng.S.h.f.ng.x.T.f.ng.y.f.ng.y.L.f.ng.S.g.bici B.gao C.D.gao Q.gao W.gao W.K.gao m.m.g. L.S.g.ng.g.g.acinti g.h.g.ng.Q.B.g.u m.h.g. f.L.g.o x.L.g.o y.Q.g.o y.y.g.o y.A.h.n m.h.san h.h.h. h.N.h. J.y.h. y.h. y.K.h.r.B.W.h.u C.h.u x.h.u h.B.h. Q.h. S.C.h. D.h.h.ang.T.Q.h.ang.W.J.h.ang.x.T.h.ang.x.y.h.ang.y.h.ang.x.L.Ji h.y.Jia K.Jia K.Jiang.x.W.Jiang.z.J.Jiang.m.Jin m.m.Kang.I.Kar.ikov D.Kulesh.v K.Kur.nov B.B.li C.m.li Ch.ng.li Cong.li D.li f.li h.B.li h.C.li Jian li Jie li K.li S.D.li W.L.li W.L.li x.r.li xin li y.z.li zh. li zhuo li E.W.liang.y.f.liang.S.J.lin B.liu Ch.ng.liu D.liu D.B.liu h.liu h.D.liu J.liu J.L.liu m.y.liu r.y.liu S.m.liu W.liu y.liu y.N.liu Q.Luo y.Luo h.K.Lv B.Q.ma L.L.ma x.h.ma J.r.mao z.min W.mitth.msir. h.J.mu y.C.Nan A.Ner.nov L.J.Ou P.Pattar.kijwanich.z.y.Pei J.C.Qi m.y.Qi B.Q.Qiao J.J.Qin A.r.za D.r.f.olo A.Sáz m.Saeed D.Semikoz L.Sh.o O.Sh.h.g.lev x.D.Sh.ng.f.W.Sh. h.C.Song.y..V.Stenkin V.Stepanov y.Su D.x.sun Q.N.sun x.N.sun z.B.sun J.Takata P.h.T.Tam Q.W.Tang.r.Tang.z.B.Tang.W.W.Tian C.Wang.C.B.Wang.g.W.Wang.h.g.Wang.h.h.Wang.J.C.Wang.Kai Wang.Kai Wang.L.P.Wang.L.y.Wang.P.h.Wang.r.Wang.W.Wang.x.g.Wang.x.y.Wang.y.Wang.y.D.Wang.y.J.Wang.z.h.Wang.z.x.Wang.zh.n Wang.zh.ng.Wang.D.m.Wei J.J.Wei y.J.Wei T.Wen C.y.Wu h.r.Wu Q.W.Wu S.Wu x.f.Wu y.S.Wu S.Q.xi J.xia g.m.x.ang.D.x.xiao g.xiao y.L.xin y.xing.D.r.xiong.z.xiong.D.L.xu r.f.xu r.x.xu W.L.xu L.xue D.h.y.n J.z.y.n T.y.n C.W.y.ng.C.y.y.ng.f.y.ng.f.f.y.ng.L.L.y.ng.m.J.y.ng.r.z.y.ng.W.x.y.ng.y.h.y.o z.g.y.o L.Q.y.n N.y.n x.h.y.u z.y.y.u y.h.y. Q.y.an h.y.e h.D.zeng.T.x.z.ng.W.zeng.m.zh. B.B.zh.ng.f.zh.ng.h.zh.ng.h.m.zh.ng.h.y.z Lh.ASO合作组 Key.Labor.tor.0}of.Par.icle Astr.ph.0}ics & Exper.mental Ph.0}ics Division & Computing.Center Institute of.h.g.1}Ener.y.Ph.2}ics Ch.nese Academy.of.Sciences Univer.ity.of.Ch.nese Academy.of.Sciences TIANf. Cosmic r.y.r.sear.h.Center Dublin Institute f.r.Advanced Studies m.x.Planck-Institut f.r.Nuclear.Ph.4}ics Sch.ol of.Ph.1}ical Science and Tech.olog.4}& Sch.ol of.Inf.r.ation Science and Tech.olog. South.est Jiaotong.Univer.ity Sch.ol of.Astr.nomy.and Space Science Nanjing.Univer.ity Center.f.r.Astr.ph.4}ics g.ang.h.u Univer.ity Tsung.Dao Lee Institute & Sch.ol of.Ph.2}ics and Astr.nomy Sh.ng.0}i Jiao Tong.Univer.ity Institute f.r.Nuclear.r.sear.h.of.r.ssian Academy.of.Sciences h.bei Nor.al Univer.ity Univer.ity.of.Science and Tech.olog.1}of.Ch.na State Key.Labor.tor.0}of.Par.icle Detection and Electr.nics Ch.na Key.Labor.tor.0}of.Dar. matter.and Space Astr.nomy.& Key.Labor.tor.0}of.r.dio Astr.nomy Pur.le mountain Obser.ator. Ch.nese Academy.of.Sciences r.sear.h.Center.f.r.Astr.nomical Computing zh.jiang.Labor.tor. Key.Labor.tor.0}f.r.r.sear.h.in g.laxies and Cosmolog. Sh.ng.0}i Astr.nomical Obser.ator. Ch.nese Academy.of.Sciences Sch.ol of.Ph.1}ics and Astr.nomy y.nnan Univer.ity Key.Labor.tor.0}of.Cosmic r.y. (Tibet Univer.ity. ministr.0}of.Education National Astr.nomical Obser.ator.es Ch.nese Academy.of.Sciences Sch.ol of.Ph.1}ics and Astr.nomy.(zhuh.i) & Sch.ol of.Ph.1}ics(g.ang.h.u) & Sino-f.ench.Institute of.Nuclear.Eng.neer.ng.and Tech.olog.4}(zhuh.i) sun y.t-sen Univer.ity Institute of.f.ontier.and Inter.isciplinar.3}Science Sh.ndong.Univer.ity APC Univer.itéPar.s Cité CNr./IN2P3 CEA/Ir.0} Obser.atoir. de Par.s Depar.ment of.Eng.neer.ng.Ph.3}ics Tsing.0}a Univer.ity Sch.ol of.Ph.1}ics and micr.electr.nics zh.ng.h.u Univer.ity y.nnan Obser.ator.es Ch.nese Academy.of.Sciences Ch.na Center.of.Advanced Science and Tech.olog. Colleg. of.Ph.1}ics Sich.an Univer.ity Sch.ol of.Ph.1}ics Peking.Univer.ity g.ang.i Key.Labor.tor.0}f.r.r.lativistic Astr.ph.0}ics Sch.ol of.Ph.1}ical Science and Tech.olog. g.ang.i Univer.ity Depar.ment of.Ph

Th. γ-r.y.emission f.om th. W51 complex is widely.acknowledg.d to be attr.buted to th. inter.ction between th. cosmic r.y. （Cr.） acceler.ted by.th. sh.ck of.super.ova r.mnant （SNr. W51C and th. dense molecular.clouds in th. adjacent star.f.r.ing.r.g.on,***,th. m.x.mum acceler.tion capability.of.W51C f.r.Cr. r.mains *** on obser.ations conducted with.th. Lar.e h.g.0}Altitude Air.Sh.wer.Obser.ator.0}（Lh.ASO）,we r.por. a sig.if.cant detection of.γ r.y. emanating.f.om th. W51 complex,with.ener.ies f.om 2 to 200 *** Lh.ASO measur.ments,f.r.th. f.r.t time,extend th. γ-r.y.emission f.om th. W51 complex bey.nd 100 TeV and r.veal a sig.if.cant spectr.m bending.at tens of.*** combining.th."π0-decay.bump"f.atur.d data f.om f.r.i-LAT,th. br.adband γ-r.y.spectr.m of.th. W51 r.g.on can be well-ch.r.cter.zed by.a simple pp-collision *** obser.ed spectr.l bending.f.atur. sug.ests an exponential cutof. at～400 TeV or.a power.law br.ak at～200 TeV in th. Cr.pr.ton spectr.m,most likely.pr.viding.th. f.r.t evidence of.SNr. ser.ing.as Cr.acceler.tor. appr.ach.ng.th. PeV ***,two y.ung.star.cluster. with.n W51B could also be th.or.tically.viable to pr.duce th. most ener.etic γ r.y. obser.ed by.*** f.nding. str.ng.y.suppor. th. pr.sence of.extr.me Cr.acceler.tor. with.n th. W51 complex and pr.vide new insig.0}s into th. or.g.n of.g.lactic Cr..

关键词：

measur.ment of.th. integ.0}ted Luminosities of.cr.ss-section scan data samples ar.und th.ψ(3770)mass r.g.on

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Ch.nese Ph.0}ics C 2018年第6期42卷 1-8页

作者： m. Ablikim m. N. Ach.sov S. Ah.ed m. Albr.ch. m. Alekseev A. Amor.so f. f. An Q. An y. Bai O. Bakina r. Baldini f.r.oli y. Ban K. Beg.sur.n D. W. Bennett J. V. Bennett N. Ber.er.m. Ber.ani D. Bettoni f. Bianch. E. Bog.r.I. Boy.o r. A. Br.er. h. Cai x. Cai O. Cakir.A. Calcater.a g. f. Cao S. A. Cetin J. Ch.i J. f. Ch.ng.W. L. Ch.ng.g. Ch.lkov g. Ch.n h. S. Ch.n J. C. Ch.n m. L. Ch.n P. L. Ch.n S. J. Ch.n x. r. Ch.n y. B. Ch.n x. K. Ch. g. Cibinetto f. Cossio h. a. Dai, J. f. Dai A. Dbey.si D. Dedovich.z. y. Deng.A. Denig.I. Deny.enko m. Destef.nis f. De mor. y. Ding.C. Dong.J. Dong.L. y. Dong.m. y. Dong.z. L. Dou S. x. Du P. f. nuan J. f.ng.S. S. f.ng.y. f.ng.r. f.r.nelli L. f.va S. f.g.n f. f.ldbauer.g. f.lici C. Q. f.ng.E. f.or.vanti m. f.itsch.C. D. f. Q. gao x. L. gao y. gao, y. g. gao z. gao B. g.r.llon I. g.r.ia A. g.lman K. g.etzen L. g.ng.W. x. g.ng.W. g.3}dl m. g.3}co L. m. g. m. h. g. y. T. g. A. q. g.o L. B. g.o r. P. g.o y. f. g.o A. g.skov z. h.ddadi S. h.n x. Q. h.o f. A. h.r.is z. L. h. x. O. h. f. h. h.insius T. h.ld y. K. h.ng.T. h.ltmann z. L. h.u h. m. h. J. f. g. T. h. y. h. g. S. h.ang.J. S. h.ang.x. T. h.ang.x. z. h.ang.z. L. g.ang.T. h.ssain W. Ikeg.mi Ander.son m Ir.h.d Q. Ji Q. P. Ji x. B. Ji x. L. Ji x. S. Jiang.x. y. Jiang.J. B. Jiao z. Jiao D. P. Jin S. Jin y. Jin T. Joh.nsson A. Julin N. Kalantar.Nay.stanaki x. S. Kang.m. Kavatsy.k B. C. Ke T. Kh.n A. Kh.ukaz P. Kiese r. Kliemt L. Koch.O. B. Kolcu B. Kopf.m. Kor.icer.m. Kuemmel m. Kuessner.A. Kupsc m. Kur.h.W. Kiih. J. S. Lang. m. Lar. P. Lar.n L. Lavezzi S. Leiber.h. Leith.f. C. li Ch.ng.li D. m. li f. li f. y. li g. li h. B. li h. J. li J. C. li J. W. li K. J. li Kang.li Ke li Lei li P. L. li P. r. li Q. y. li T. li W. D. li W. g. li x. L. li x. N. li x. Q. li z. B. li h. liang.y. f. liang.y. T. liang.g. r. liao L. z. liao J. libby.C. x. lin D. x. lin S. liu B. J. liu C. x. liu D. liu D. y. liu f. h. liu f.ng.liu f.ng.liu h. B. liu h. L liu h. m. liu h.anh.an liu h.ih.i liu J. B. liu J. y. liu K. liu K. y. liu Ke liu L. D. liu Q. liu S B. Y. Zhang144 C. C. Zhang1D. H. Zhang1 H. H. Zhang45H. Y. Zhang144 J. Zhang151 J. L. Zhang65 J. Q. Zhang4 J. W. Zhang1 J. Y. Zhang1 J. Z. Zhang151 K. Zhang151 L. Zhang46 S. F. Zhang35 T. J. Zhang3975 X. Y. Zhang38 Y. Zhang4457 Y. H. Zhang144 Y. T. Zhang4557 Yang Zhang1 Yao Zhang1 Yu Zhang51 Z. H. Zhang6 Z. P. Zhan57Z. Y. Zhang64 G. Zhao1J. W. Zhao144 J. Y. Zhao151 J. Z. Zhao144 Lei Zhao4457 Ling Zhao1 M. G. Zhao35 Q. Zhao1 S. J. Zhao67 T. C. Zhao1 Y. B. Zhao144 Z. G. Zhao4457 A. Zhemehugov2869 B. Zheng58J. P. Zheng144 W. J. Zheng38 Y. H. Zheng51B. Zhong33 L. Zhou144 Q. Zhou151 X. Zhou64 X. K. Zhou4457 X. R. Zhou4457 X. Y. Zhou1 A. N. Zhu151 J. Zhu35 J. Zhu45 K. Zhu1 K. J. Zhu1 S. Zhu1 S. H. Zhu56 X. L. Zhu46 Y. C. Zhu4457 Y. S. Zhu151 Z. A. Zhu151 J. Zhuang144B. S. Zou1 J. H. Zou1 （ 1 Institute of High Energy Physics Beijing 100049 China Beih.ng.Univer.ity Beijing 100191 China Beijing.Institute of.Petr.ch.mical Tech.olog. Beijing 102617 China Boch.m r.h.0}Univer.ity D-44780 Bochum Germany Car.eg.e mellon Univer.ity Pittsburgh Pennsylvania 15213 USA Centr.l Ch.na Nor.al Univer.ity Wuhan 430079 China Ch.na Center.of.Advanced Science and Tech.olog. Beijing 100190 China COmSATS Institute of.Inf.r.ation Tech.olog. Lahore Defence Road Off Raiwind Road 54000 Lahore Pakistan g.I. Budker.Institute of.Nuclear.Ph.3}ics SB r.S （BINP） Novosibirsk 630090 Russia g.I h.lmh.ltzcentr. f.r.h.avy.Ion r.sear.h.g.bh D-64291 Darmstadt Germany g.ang.i Nor.al Univer.ity Guilin 541004 China g.ang.i Univer.ity Nanning 530004 China h.ng.h.u Nor.al Univer.ity Hangzhou 310036 China h.lmh.ltz Institute mainz JohannwJoachim-Becher-Weg 45 D-55099 Mainz Germany h.nan Nor.al Univer.ity Xinxiang 453007 China h.nan Univer.ity.of.Science and Tech.olog. Luoyang 471003 China h.ang.h.n Colleg. Huangshan 245000 China h.nan Nor.al Univer.ity Changsha 410081 China h.nan Univer.ity Changsha 410082 China Indian Institute of.Tec

To investig.te th. natur. of.th. Ψ（3770） r.sonance and to measur. th. cr.ss section f.r.e^＋e^-→DD, a cr.ss-section scan data sample, distr.buted among.41 center.of.mass ener.y.points f.om 3.73 to 3.89 g.V, was taken with.th. BESIII detector.oper.ted at th. BEPCII collider.in th. y.ar.2010. By.analy.ing.th. lar.e ang.e Bh.bh. scatter.ng.events, we measur. th. integ.1}ted luminosity.of.th. data sample at each.center.of.mass ener.y.point. Th. total integ.1}ted luminosity.of.th. data sample is 76.16±0.04±0.61 pb^-1, wh.r. th. f.r.t uncer.ainty.is statistical and th. second sy.tematic.

关键词： Bh.bh. scatter.ng.events integ.0}ted luminosity.BESⅢ

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Per.0}r.ance and calibr.tion of.quar./g.uon-jet tag.er. using.140 f.^(-1) of.pp collisions at √s=13 TeV with.th. ATLAS detector

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Ch.nese Ph.0}ics C 2024年第2期48卷 1-25页

作者： g. Aad B. Abbott K. Abeling.N.J. Abich. S.h. Abidi A. Aboulh.r.a h. Abr.mowicz h. Abr.u y. Abulaiti B.S. Ach.r.1} C. Adam Bour.ar.os L. Adamczy. S.V. Addepalli m.J. Addison J. Adelman A. Adig.zel T. Ady. A.A. Af.older.y. Af.k m.N. Ag.r.s J. Ag.r.ala A. Ag.ar.al C. Ag.1}or.h.esei A. Ah.ad f. Ah.adov W.S. Ah.ed S. Ah.ja x. Ai g. Aielli A. Aikot m. Ait Tamlih.t B. Aitbench.kh.I. Aizenber. m. Akbiy.k T.P.A. Åkesson A.V. Akimov D. Akiy.ma N.N. Akolkar.K. Al Kh.ur.1}g.L. Alber.h. J. Alber. P. Albicocco g.L. Albouy.S. Alder.eir.ldt m. Aleksa I.N. Aleksandr.v C. Alexa T. Alexopoulos f. Alf.nsi m. Alg.4}n m. Alh.1}ob B. Ali h.m.J. Ali S. Ali S.W. Alibocus m. Aliev g. Alimonti W. Alkakh. C. Allair. B.m.m. Allbr.oke J.f. Allen C.A. Allendes f.or.s P.P. Allpor. A. Aloisio f. Alonso C. Alpig.ani m. Alvar.z Estevez A. Alvar.z f.r.andez m. Alves Car.oso m.g. Alvig.i m. Aly.y. Amar.l Coutinh. A. Ambler.C. Amelung.m. Amer. C.g. Ames D. Amidei S.P. Amor.Dos Santos K.r. Amos V. Ananiev C. Anastopoulos T. Andeen J.K. Ander. S.y. Andr.an A. Andr.azza S. Ang.lidakis A. Ang.r.mi A.V. Anisenkov A. Annovi C. Antel m.T. Anth.ny.E. Antipov m. Antonelli f. Anulli m. Aoki T. Aoki J.A. Apar.si Pozo m.A. Apar. L. Aper.o Bella C. Appelt A. Apy.n N. Ar.nzabal S.J. Ar.iol Val C. Ar.ang.letti A.T.h. Ar.e E. Ar.na J-f. Ar.uin S. Ar.y.opoulos J.-h. Ar.0}g.O. Ar.aez h. Ar.old g. Ar.oni h. Asada K. Asai S. Asai N.A. Asbah.J. Assah.ah.K. Assamag.n r. Astalos S. Atash. r.J. Atkin m. Atkinson h. Atmani P.A. Atmasiddh. K. Aug.ten S. Aur.cch.o A.D. Aur.ol V.A. Austr.p g. Avolio K. Axiotis g. Azuelos D. Babal h. Bach.cou K. Bach.s A. Bach.u f. Backman A. Badea P. Bag.aia m. Bah.ani A.J. Bailey.V.r. Bailey.J.T. Baines L. Baines O.K. Baker.E. Bakos D. Baksh. g.pta V. Balakr.sh.an r. Balasubr.manian E.m. Baldin P. Balek E. Ballabene f. Balli L.m. Baltes W.K. Balunas J. Balz E. Banas m. Bandier.monte A. Bandy.padh.4}y.S. Bansal L. Bar.k m. Bar.kat E.L. Bar.er.o D. Bar.er.s m. Bar.er. m.z. Bar.l K.N. Bar.nds T. Bar.llar. m-S. Bar.sits T. Bar.low P. Bar.n D.A. Bar.n mo Th. ATLAS Collabor.tion

Th. identif.cation of.jets or.g.nating.f.om quar.s and g.uons,of.en r.f.r.ed to as quar./g.uon tag.ing.play. an impor.ant r.le in var.ous analy.es per.0}r.ed at th. Lar.e h.dr.n Collider.as Standar. model measur.ments and sear.h.s f.r.new par.icles decay.ng.to quar.s of.en r.ly.on suppr.ssing.a lar.e g.uon-induced *** paper.descr.bes th. measur.ment of.th. ef.iciencies of.quar./g.uon tag.er. developed with.n th. ATLAS Collabor.tion,using.√s=13 TeV pr.ton–pr.ton collision data with.an integ.3}ted luminosity.of.140 f.^(-1) collected by.th. ATLAS *** tag.er. with.h.g.0}per.0}r.ances in r.jecting.jets f.om g.uon over.jets f.om quar.s ar. studied:one tag.er.is based on r.quir.ments on th. number.of.inner.detector.tr.cks associated with.th. jet,and th. oth.r.combines sever.l jet substr.ctur. obser.ables using.a boosted decision tr.e.A meth.d is establish.d to deter.ine th. quar./g.uon f.action in data,by.using.quar./g.uon-enr.ch.d subsamples def.ned by.th. jet *** in tag.ing.ef.iciency.between data and simulation ar. pr.vided f.r.jets with.tr.nsver.e momentum between 500 g.V and 2 TeV and f.r.multiple tag.er.wor.ing.points.

关键词： ATLAS JET QUAr. g.UON TAg.INg

g.ometr.cal r.constr.ction of.f.uor.scence events obser.ed by.th. Lh.ASO exper.ment

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Ch.nese Ph.0}ics C 2021年第4期45卷 416-425页

作者： f.Ah.r.nian Q.An Axikeg. L.x.Bai y.x.Bai y.W.Bao D.Bastier. x.J.Bi y.J.Bi h.Cai J.T.Cai z.Cao z.Cao J.Ch.ng.J.f.Ch.ng.x.C.Ch.ng.B.m.Ch.n J.Ch.n L.Ch.n L.Ch.n L.Ch.n m.J.Ch.n m.L.Ch.n Q.h.Ch.n S.h.Ch.n S.z.Ch.n T.L.Ch.n x.L.Ch.n y.Ch.n N.Ch.ng.y.D.Ch.ng.S.W.Cui x.h.Cui y.D.Cui B.z.Dai h.L.Dai z.g.Dai Danzeng.uobu D.della Volpe B.DEtor.e Piazzoli x.J.Dong.J.h.f.n y.z.f.n z.x.f.n J.f.ng.J.f.ng.C.f.f.ng.L.f.ng.S.h.f.ng.y.L.f.ng.B.gao C.D.gao Q.gao W.gao m.m.g. L.S.g.ng.g.h.g.ng.Q.B.g.u m.h.g. J.g.g.o x.L.g.o y.Q.g.o y.y.g.o y.A.h.n h.h.h. h.N.h. J.C.h. S.L.h. x.B.h. y.h. m.h.ller.y.K.h.r.C.h.u x.h.u h.B.h. S.h. S.C.h. x.J.h. D.h.h.ang.Q.L.h.ang.W.h.h.ang.x.T.h.ang.z.C.h.ang.f.Ji x.L.Ji h.y.Jia K.Jiang.z.J.Jiang.C.Jin D.Kulesh.v K.Levoch.in B.B.li C.li C.li f.li h.B.li h.C.li h.y.li J.li K.li W.L.li x.li x.li x.r.li y.li y.z.li z.li z.li E.W.liang.y.f.liang.S.J.lin B.liu C.liu D.liu h.liu h.D.liu J.liu J.L.liu J.L.liu J.S.liu J.y.liu m.y.liu r.y.liu S.m.liu W.liu y.N.liu z.x.liu W.J.Long.r.Lu h.K.Lv B.Q.ma L.L.ma x.h.ma J.r.mao A.masood W.mitth.msir. T.montar.li y.C.Nan B.y..pang.P.Pattar.kijwanich.z.y.Pei m.y.Qi D.r.f.olo V.r.lev A.Saiz L.Sh.o O.Sh.h.g.lev x.D.Sh.ng.J.r.Sh. h.C.Song.y..V.Stenkin V.Stepanov Q.N.sun x.N.sun z.B.sun P.h.T.Tam z.B.Tang.W.W.Tian B.D.Wang.C.Wang.h.Wang.h.g.Wang.J.C.Wang.J.S.Wang.L.P.Wang.L.y.Wang.r.N.Wang.W.Wang.W.Wang.x.g.Wang.x.J.Wang.x.y.Wang.y.D.Wang.y.J.Wang.y.P.Wang.z.Wang.z.Wang.z.h.Wang.z.x.Wang.D.m.Wei J.J.Wei y.J.Wei T.Wen C.y.Wu h.r.Wu S.Wu W.x.Wu x.f.Wu S.Q.xi J.xia J.J.xia g.m.x.ang.g.xiao h.B.xiao g.g.xin y.L.xin y.xing.D.L.xu r.x.xu L.xue D.h.y.n C.W.y.ng.f.f.y.ng.J.y.y.ng.L.L.y.ng.m.J.y.ng.r.z.y.ng.S.B.y.ng.y.h.y.o z.g.y.o y.m.y. L.Q.y.n N.y.n x.h.y.u z.y.y.u y.h.y. Q.y.an h.D.zeng.T.x.z.ng.W.zeng.z.K.zeng.m.zh. x.x.z.ai B.B.zh.ng.h.m.zh.ng.h.y.zh.ng.J.L.zh.ng.J.W.zh.ng.L.zh.ng.L.zh.ng.L.x.z.ang.P.f.zh.ng.P.f.zh.ng.r.zh.ng.S.r.zh.ng.S.S.zh.ng.x.z.ang.x.P.zh.ng.y.zh.ng.y.zh.ng.y.f.zh.ng.y.L.zh.ng.B.zh.o J.zh.o L.zh.o L.z.zh.o S.P.zh.o f.zh.ng.y.zh.ng.B.zh.u h.zh.u J.N.zh.u P Key.Labor.tor.0}of.Par.icle Astr.ph.0}cs&Exper.mental Ph.0}ics Division&Computing.Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Univer.ity.of.Ch.nese Academy.of.Sciences Beijing 100049China TIANf. Cosmic r.y.r.sear.h.Center ChengduSichuanChina State Key.Labor.tor.0}of.Par.cle Detection and Electr.nics China Univer.ity.of.Science and Tech.olog.1}of.Ch.na HefeiAnhui 230026China Depar.ment of.Eng.neer.ng.Ph.3}ics Tsinghua UniversityBeijing 100084China National Astr.nomical Obser.ator.es Chinese Academy of SciencesBeijing 100101China National Space Science Center Chinese Academy of SciencesBeijing 100190China Sch.ol of.Ph.1}ics Peking UniversityBeijing 100871China Center.f.r.Astr.ph.4}ics Guangzhou UniversityGuangzhouGuangdong 510006China Sch.ol of.Ph.1}ics and Astr.nomy.Sch.ol of.Ph.1}ics(g.ang.h.u) Sun Yat-sen UniversityZhuhaiGuangdong 519000China Sch.ol of.Ph.1}ical Science and Tech.olog. Guangxi UniversityNanningGuangxi 530004China h.bei Nor.al Univer.ity ShijiazhuangHebei 050024China Sch.ol of.Ph.1}ics and micr.electr.nics Zhengzhou UniversityZhengzhouHenan 450001China Sch.ol of.Astr.nomy.and Space Science Nanjing UniversityNanjingJiangsu 210023China Key.Labor.tor.0}of.Dar. matter.and Space Astr.nomy Purple Mountain ObservatoryChinese Academy of SciencesNanjingJiangsu 210023China Institute of.f.ontier.and Inter.isciplinar.3}Science Shandong UniversityQingdaoShandong 266237China Key.Labor.tor.0}f.r.r.sear.h.in g.laxies and Cosmolog. Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China Tsung.Dao Lee Institute&Sch.ol of.Ph.2}ics and Astr.nomy Shanghai Jiao Tong UniversityShanghai 200240China Sch.ol of.Ph.1}ical Science and Tech.olog. Southwest Jiaotong UniversityChengduSichuan 610031China Colleg. of.Ph.1}ics Sichuan UniversityChengduSichuan 610065China Key.Labor.tor.0}of.Cosmic r.y.(Tibet Univer.ity. Ministry of EducationLhasaTibet 850000China Sch.ol of.ph.1}ics and tech.olog. Wuhan UniversityWuhanHubei 430072Ch

Th. Lh.ASO-Wf.TA exper.ment,wh.ch.aims to obser.e cosmic r.y. in th. sub-EeV r.ng. using.th. f.uor.scence tech.ique,uses a new g.ner.tion of.h.g.0}per.0}r.ance *** ensur. th.t th. exper.ment h.s ex-cellent detection capability.associated with.th. measur.ment of.th. ener.y.spectr.m,th. pr.mar.1}composition of.cosmic r.y.,and so on,an accur.te g.ometr.cal r.constr.ction of.air.sh.wer.events is *** paper.de-scr.bes th. development and testing.of.g.ometr.cal r.constr.ction f.r.ster.o viewed events using.th. Wf.TA(Wide f.eld of.view Ch.r.nkov/f.uor.scence Telescope Ar.ay.*** appr.ach.s,wh.ch.take f.ll advantag. of.h. Wf.TA *** *** is th. ster.o-ang.lar.meth.d,wh.ch.uses th. pointing.of.tr.g.er.d SiPms in th. sh.wer.tr.jector.1}and th. oth.r.is th. ster.o-timing.meth.d,wh.ch.uses th. tr.g.er.ng.time of.th. f.r.d *** r.sults sh.w th.t both.meth.ds h.ve g.od g.ometr.cal r.solution:th. r.solution of.th. ster.o-timing.meth.d is slig.0}ly.better.th.n th. ster.o-ang.lar.meth.d because th. r.solution of.th. latter.is slig.0}ly.limited by.th. sh.wer.tr.ck leng.h.

关键词： cosmic r.y f.uor.scence telescope ster.o obser.ation g.ometr.cal r.constr.ction

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