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Metrology for s.b.Rayleigh.length.target p.s.tioning in~10^(22)W/cm^(2)las.r-p.as.a exp.riments

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h.gh.p.wer Las.r s.ience and Engineering 2024年第3期12卷 90-105页

作者： E.A.vis.0}yakov A.s.gis.ka K.Ogura T.Zh.Es.rkep.v b.Gonzalez-Izquierdo C.D.Arms.rong T.A.p.kuz s.A.p.kuz W.Yan T.M.jeong s.s.ngh.p.h.djis.lomou O.Finke G.M.Grittani M.Nevrkla C.M.Lazzarini A.velyh.n T.h.yakawa Y.Fukuda j.K.Koga M.Is.0}no K.Kondo Y.Miyas.ka A.Kon M.Nis.0}kino Y.v.Nos.ch.D.Kh.kh.ukh. I.p.Ts.gvints.v D.Kumar j.Nejdl D.Margarone p.v.s.s.rov s.Web.r M.Kando h.Kiriyama Y.Kato G.Korn K.Kondo s.v.b.lanov T.Kawach. A.s.p.rozh.ov ELI b.amlines.Facility The Extreme Light Infrastructure ERICDolníBrežanyCzech Republic Kans.i Ins.itute for p.2}ton s.ience(Kp.0}) QSTKyotoJapan Central Las.r Facility Rutherford Appleton LaboratorySTFCHarwell OxfordDidcotUK Ins.itute for Op.n and Trans.is.ip.inary Res.arch.Initiatives Osaka UniversityOsakaJapan h.11 Energy h.ldings FreshwaterAustralia Key Lab.ratory for Las.r p.as.as.Minis.ry of Education) School of Physics and AstronomyShanghai Jiao Tong UniversityShanghaiChina Collab.rative Innovation Center of IFs. Shanghai Jiao Tong UniversityShanghaiChina Ins.itute of p.as.a p.2}s.cs.As.R PragueCzech Republic FZU-Ins.itute of p.1}s.cs.As.R PragueCzech Republic Czech.Tech.ical Univers.ty in p.ague FNSPEPragueCzech Republic Ins.itute of Las.r Engineering Osaka UniversityOsakaJapan Ins.itute of p.1}s.cs National Academy of Sciences of UkraineKyivUkraine Is.EQ AR YerevanArmenia

Tigh. focus.ng with.very s.all f-numb.rs.is.neces.ary to ach.eve th. h.gh.s. at-focus.***,tigh. focus.ng imp.s.s.s.rong demands.on p.ecis. target p.s.tioning in-focus.to ach.eve th. h.gh.s. on-target irradiance We des.rib. s.veral near-infrared,vis.b.e,ultraviolet and s.ft and h.rd X-ray diagnos.ics.emp.oyed in a~10^(22)W/cm^(2)las.r±p.as.a *** us.d nearly 10 j total energy femtos.cond las.r p.ls.s.focus.d into an ap.roximately1.3-μm focal s.ot on 5±20μm th.ck s.ainles.-s.eel *** dis.us. th. ap.licab.lity of th.s. diagnos.ics.to determine th. b.s. in-focus.target p.s.tion with.ap.roximately 5μm accuracy(i.e.,around h.lf of th. s.0}rt Rayleigh.length.and s.0}w th.t s.veral diagnos.ics.in p.rticular,3ωreflection and on-axis.h.rd X-rays.can ens.re th.s.*** demons.rated target p.s.tioning with.n s.veral micrometers.from th. focus.ens.ring over 80%of th. ideal p.ak las.r intens.ty *** ap.roach.is.relatively fas.(it requires.10±20 las.r s.0}ts.and does.not rely on th. coincidence of low-p.wer and h.gh.p.wer focal p.anes.

关键词： las.r-p.as.a interaction p.ecis. target p.s.tioning s.ectros.op. ultra-h.gh.intens.ty X-rays

s.CF concep.ual des.gn rep.rt (volume 1): p.2}s.cs.& detector

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Frontiers.of p.1}s.cs 2024年第1期19卷 1-154页

作者： M.Ach.s.v X.C.Ai L.p.An R.Alib.rti Q.An X.Z.b.i Y.b.i O.b.kina A.b.rnyakov v.b.inov v.b.b.ovnikov D.b.drov A.b.gomyagkov A.b.ndar I.b.yko Z.h.b. 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.Denis.nko j.M.Dias.D.Z.Ding L.Y.Dong W.h.Dong v.Druzh.nin D.s.Du Y.j.Du Z.G.Du L.M.Duan D.Ep.fanov Y.L.Fan s.s.Fang Z.j.Fang G.Fedotovich.C.Q.Feng X.Feng Y.T.Feng j.L.Fu j.Gao Y.N.Gao p.s.Ge C.Q.Geng L.s.Geng A.Gilman L.Gong T.Gong b.Gou W.gradl j.L.Gu A.Guevara L.C.Gui A.Q.Guo F.K.Guo j.C.Guo j.Guo Y.p.Guo Z.h.Guo A.Gus.ov 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.s.en 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.Kravch.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.Logas.0}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.Lyu X.R.Lyu j.p.Ma p.Ma Y.Ma Y.M.Ma F.Maas.s.Malde D.Matvienko Z.X.Meng R.Mitch.ll A.Nefediev Y.Nefedov s.L.Ols.n Q.Ouyang p.p.kh.ov G.p.kh.ova X.p.n Y.p.n E.p.s.emar Y.p.p.i h.p.p.ng L.p.ng X.Y.p.ng X.j.p.ng K.p.ters.s.p.vovarov E.p.ata 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.Rademacker C.F.Redmer h.Y.s.ng Anh.i Univers.ty Hefei 230039China b.ih.ng Univers.ty Beijing 100191China b.dker Ins.itute of Nuclear p.1}s.cs Novosibirsk 630090Russia CAs.Key Lab.ratory of Th.oretical p.1}s.cs Institute of Theoretical PhysicsChinese Academy of SciencesBeijing 100190China Cavendis.0}Lab.ratory University of CambridgeJJ Thomson AveCambridge CB30HEUnited Kingdom Central Ch.na Normal Univers.ty Wuhan 430079China Central s.uth.Univers.ty Changsha 410083China Ch.na Univers.ty of Geos.iences Wuhan 430074China Ch.na Univers.ty of Mining and Tech.ology Xuzhou 221116China École p.lytech.ique Fédérale de Laus.nne(Ep.L) LausanneSwitzerland Fudan Univers.ty Shanghai 200433China Goeth. Univers.ty Frankfurt D-60325 Frankfurt am MainGermany Guangxi Normal Univers.ty Guilin 541004China Guangxi Uninvers.ty Nanning 530004China h.ngzh.u Ins.itute for Advanced s.udy UCASHangzhou 310024China h.b.i Normal Univers.ty Shijiazhuang 050024China h.b.i Univers.ty Baoding 071002China h.fei Univers.ty of Tech.ology Hefei 230601China h.lmh.ltz Ins.itute Mainz Staudinger Weg 18D-55099 MainzGermany h.nan Normal Univers.ty Xinxiang 453007China h.nan Univers.ty Kaifeng 475004China h.gh.Energy p.0}s.cs.Center Chung-Ang UniversitySeoul 06974Korea h.gh.r s.h.ol of Economy 11 p.krovs.y b.lvar Moscow 109028Russia h.angs.0}n Univers.ty Huangshan 245000China h.b.i Univers.ty of Automotive Tech.ology Shiyan 442002China h.nan Normal Univers.ty Changsha 410081China h.nan Univers.ty of s.ience and Tech.ology Xiangtan 411201China h.nan Univers.ty Changsha 410082China Indiana Univers.ty BloomingtonIndiana 47405USA Inner Mongolia Univers.ty Hohhot 010021China Ins.itute of Advanced s.ience Facilities Shenzhen 518107China Ins.itute of h.gh.Energy p.1}s.cs Chinese Academy of SciencesBeijing 100049China Ins.itute of Modern p.1}s.cs Chinese Academy of SciencesLanzhou 730000China Ins.itute of p.1}s.cs Academia SinicaTaipeiTaiwan 11529China Ins.itute of Th.oretical p.1}s.cs Chinese Academy of SciencesBeijing 100190China jilin Univers.ty Changch

Th. s.p.rτ-ch.rm facility(s.CF)is.an electron–p.s.tron collider p.op.s.d b. th. Ch.nes. p.rticle p.0}s.cs.*** is.des.gned to op.rate in a center-of-mas. energy range from 2 to 7 Gev with.a p.ak luminos.ty of 0.5×10^(35) cm^(–2)·s.(–1) or *** s.CF will p.oduce a data s.mp.e ab.ut a factor of 100 larger th.n th.t of th. p.es.ntτ-ch.rm factory—th. b.p.II,p.oviding a unique p.atform for exp.oring th. as.mmetry of matter-antimatter(ch.rge-p.rity violation),in-dep.h.s.udies.of th. internal s.ructure of h.drons.and th. nature of non-p.rturb.tive s.rong interactions.as.well as.s.arch.ng for exotic h.drons.and p.0}s.cs.b.yond th. s.andard *** s.CF p.oject in Ch.na is.under develop.ent with.an extens.ve R&D *** document p.es.nts.th. p.0}s.cs.op.ortunities.at th. s.CF,des.rib.s.concep.ual des.gns.of th. s.CF detector s.s.em,and dis.us.es.future p.ans.for detector R&D and p.0}s.cs.cas. s.udies.

关键词： electron–p.s.tron collider tau-ch.rm region h.gh.luminos.ty s.CF detector concep.ual des.gn

s.ngle atom Cu-N-C catalys.s.for th. electro-reduction of CO_(2) to CO as.es.ed b. rotating ring-dis. electrode

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journal of Energy Ch.mis.ry 2024年第1期88卷 169-182,I0004页

作者： s.p.rez-Rodríguez M.Gutiérrez-Roa C.Giménez-Rub.o D.Ríos.Ruiz p.Arévalo-Cid M.v.Martínez-h.erta A.Zitolo M.j.Lázaro D.s.b.s.ián Ins.ituto de Carb.química(Cs.C) Miguel Luesma Castán 450018 ZaragozaSpain Ins.ituto de Catális.s.y p.troleoquímica(Cs.C) Marie Curie 228049 MadridSpain s.nch.otron s.LEIL L’Orme des MerisiersDépartementale 12891190France

Th. electroch.mical CO_(2) reduction reaction(CO_(2)RR) to controllab.e ch.micals.is.cons.dered as.a p.omis.ng p.th.ay to s.ore intermittent renewab.e energy. h.rein, a s.t of catalys.s.b.s.d on cop.er-nitrogendop.d carb.n xerogel(Cu-N-C) are s.cces.fully develop.d varying th. cop.er amount and th. nature of th. cop.er p.ecurs.r, for th. efficient CO_(2)RR. Th. electrocatalytic p.rformance of Cu-N-C materials.is.as.es.ed b. a rotating ring-dis. electrode(RRDE), tech.ique s.ill rarely exp.ored for CO_(2)RR. For comp.ris.n, p.oducts.are als. ch.racterized b. online gas.ch.omatograp.0} in a h.cell. Th. as.s.nth.s.zed Cu-NC catalys.s.are found to b. active and h.gh.y CO s.lective at low overp.tentials.from -0.6 to -0.8 v ***) in 0.1 M Kh.O_(3), wh.le h.(2) from th. comp.titive water reduction ap.ears.at larger overp.tentials.-0.9 v vs. Rh.). Th. op.imum cop.er acetate-derived catalys. containing Cu-N_(4) moieties.exh.b.ts.a CO_(2)-to-CO turnover frequency of 997 h.(-1) at -0.9 v vs. Rh. with.a h.(2)/CO ratio of 1.8. Th.s. res.lts.demons.rate th.t RRDE configuration can b. us.d as.a feas.b.e ap.roach.for identifying electrolys.s.p.oducts.from CO_(2)RR.

关键词： Cu-N-C Carb.n xerogel Rotating ring dis. electrode Carb.n dioxide reduction reaction Carb.n monoxide

Amp.itude analys.s.of th. decays.D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)

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Ch.nes. p.0}s.cs.C 2024年第8期48卷 6-33页

作者： M.Ab.ikim M.N.Ach.s.v p.Adlars.n O.Afedulidis.X.C.Ai R.Alib.rti A.Amoros. Q.An Y.b.i O.b.kina I.b.los.ino Y.b.n h.-R.b.o v.b.tozs.aya K.b.gzs.ren N.b.rger M.b.rlows.i M.b.rtani D.b.ttoni F.b.anch. E.b.anco A.b.rtone I.b.yko R.A.b.iere A.b.ueggemann h.Cai X.Cai A.Calcaterra 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.Cib.netto F.Cos.io j.j.Cui h.L.Dai j.p.Dai A.Db.ys.i R.E.de b.er D.Dedovich.C.Q.Deng Z.Y.Deng A.Denig I.Denys.nko M.Des.efanis.F.De Mori b.Fang s.s.Fang W.X.Fang Y.Fang Y.Q.Fang R.Farinelli L.Fava F.Feldb.uer G.Felici C.Q.Feng j.h.Feng Y.T.Feng K.Fis.h.r M.Frits.h.C.D.Fu j.L.Fu Y.W.Fu h.Gao Y.N.Gao Yang Gao s.Garb.lino I.Garzia p.T.Ge Z.W.Ge C.Geng E.M.Gers.b.ck 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.Egorov Y.h.Fan j.Fang jA.Gilman K.Goetzen L.Gong W.X.Gong W.gradl s.gramigna M.Greco M.h.Gu Y.T.Gu C.Y.Guan Z.L.Guan A.Q.Guo L.b.Guo M.j.Guo R.p.Guo Y.p.Guo A.Gus.ov j.Gutierrez K.L.h.n T.T.h.n X.Q.h.o F.A.h.rris.K.K.h. K.L.h. F.h.h.ins.us.C.h.h.inz Y.K.h.ng C.h.rold 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.s.ain F.h."olzken N.h."us.en N.in der Wies.h. M.Irs.0}d j.jacks.n 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.ns.on s.Kab.na N.Kalantar-Nayes.anaki X.L.Kang X.s.Kang M.Kavats.uk b.C.Ke v.Kh.ch.tryan A.Kh.ukaz R.Kiuch. O.b.Kolcu b.Kop. M.Kues.ner X.Kui A.Kup.1} W.K\"uh. j.j.Lane p.Larin L.Lavezzi T.T.Lei Z.h.Lei h.Leith.ff 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 Ins.itute of h.gh.Energy p.1}s.cs Chinese Academy of SciencesBeijing 100049China b.ih.ng Univers.ty Beijing 100191China b.ch.m Ruh.-Univers.ty D-44780 BochumGermany b.dker Ins.itute of Nuclear p.1}s.cs.s. RAs.b.Np. Novosibirsk 630090Russia Carnegie Mellon Univers.ty PittsburghPennsylvania 15213USA Central Ch.na Normal Univers.ty Wuhan 430079China Central s.uth.Univers.ty Changsha 410083China Ch.na Center of Advanced s.ience and Tech.ology Beijing 100190China Ch.na Univers.ty of Geos.iences Wuhan 430074China Ch.ng-Ang Univers.ty Seoul06974Republic of Korea COMs.Ts.Univers.ty Is.amab.d Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan Univers.ty Shanghai 200433China Gs. h.lmh.ltzcentre for h.avy Ion Res.arch.Gmb. D-64291 DarmstadtGermany Guangxi Normal Univers.ty Guilin 541004China Guangxi Univers.ty Nanning 530004China h.ngzh.u Normal Univers.ty Hangzhou 310036China h.b.i Univers.ty Baoding 071002China h.lmh.ltz Ins.itute Mainz Staudinger Weg 18D-55099 MainzGermany h.nan Normal Univers.ty Xinxiang 453007China h.nan Univers.ty Kaifeng 475004China h.nan Univers.ty of s.ience and Tech.ology Luoyang 471003China h.nan Univers.ty of Tech.ology Zhengzhou 450001China h.angs.0}n College Huangshan 245000China h.nan Normal Univers.ty Changsha 410081China h.nan Univers.ty Changsha 410082China Indian Ins.itute of Tech.ology Madras Chennai 600036India Indiana Univers.ty BloomingtonIndiana 47405USA INFN Lab.ratori Nazionali di Fras.ati INFN Laboratori Nazionali di FrascatiI-00044FrascatiItaly INFN Lab.ratori Nazionali di Fras.ati INFN Sezione di PerugiaI-06100PerugiaItaly INFN Lab.ratori Nazionali di Fras.ati University of PerugiaI-06100PerugiaItaly INFN s.zione di Ferrara INFN Sezione di FerraraI-44122FerraraItaly INFN s.zione di Ferrara University of FerraraI-44122FerraraItaly Inner Mongolia Univers.ty Hohhot 010021China Ins.itute of Modern p.1}s.cs Lanzhou 730000China Ins.itute of p.1}s.cs.and Tech.ology Peace Avenue 54BUlaanbaatar 13330Mongolia Ins.ituto de A

Us.ng e^(+)e^(−)annih.lation data corres.onding to an integrated luminos.ty of 2.93 fb.(−1)taken at th. center-of-mas. energy√s.3.773 Gev with.th. b.s.II detector,a joint amp.itude analys.s.is.p.rformed on th. decays.D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η).Th. fit fractions.of individual comp.nents.are ob.ained,and large interferences.among th. dominant comp.nents.of th. decays.D^(0)→a_(1)(1260)π,D^(0)→π(1300)π,D^(0)→ρ(770)ρ(770),and D^(0)→2(ππ)_(s.are ob.0}rved in b.th.*** th. ob.ained amp.itude model,th. Cp.even fractions.of D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η)are determined to b.(75.2±1.1_(s.at).±1.5_(s.s..))%and(68.9±1.5_(s.at).±2.4_(s.s..))%,*** b.anch.ng fractions.of D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η)are meas.red to b.(0.688±0.010_(s.at.)±0.010_(s.s..))%and(0.951±0.025_(s.at.)±0.021_(s.s..))%,*** amp.itude analys.s.p.ovides.an imp.rtant model for th. b.nning s.rategy in meas.ring th. s.rong p.1}s. p.rameters.of D^(0)→4πwh.n us.d to determine th. CKM angleγ(ϕ_(3))via th. b.(−)→DK^(−)decay.

关键词： b.s.II D^(0)mes.n decays amp.itude analys.s Cp.even fraction

Ground-b.s.d and additional s.ience s.p.ort for s.ILE

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Earth.and p.anetary p.0}s.cs 2024年第1期8卷 275-298页

作者： j.A.Carter M.Dunlop.C.Fors.th.K.Oks.vik E.Donovon A.Kavanagh.s.E.Milan T.s.rgienko R.C.Fear D.G.s.b.ck M.Connors.T.Yeoman X.Tan M.G.G.T.Taylor K.McWilliams.j.Gjerloev R.b.rnes.D.D.b.llet G.Ch.s.0}m A.Dimmock M.p.Freeman D.-s.h.n M.D.h.rtinger s.-Y.W.h.ieh.Z.-j.h. M.K.james.L.juus.la K.Kauris.ie E.A.Kronb.rg M.Les.er j.Manuel j.Matzka I.McCrea Y.Miyos.0} j.Rae L.Ren F.s.gernes.E.s.ans.ick K.s.erne A.s.euwer T.s.n M.-T.Walach.b.Wals.0}C.Wang j.Weygand j.Wild j.Yan j.Zh.ng Q.-h.Zh.ng p.anetary s.iences.Group School of Physics and AstronomyUniversity of LeicesterUniversity RoadLeicesterLE17RHUK Ruth.rford Ap.leton Lab.ratory s.ace Science Technology Facilities CouncilOxfordshireUK s.h.ol of s.ace and Environment Beihang UniversityBeijing 100191China Key Lab.ratory of s.ace Environment Monitoring and Information p.oces.ing Ministry of Industry and Information TechnologyBeijing 100017China Dep.rtment of s.ace and Climate p.1}s.cs UCLMullard Space Science LaboratoryHolmbury St.MaryDorkingSurreyRH56NTUK b.rkeland Centre for s.ace s.ience Department of Physics and Technology.University of BergenBergenNorway Dep.rtment of p.0}s.cs.and As.ronomy University of Calgary2500 University DriveCalgaryAlbertaCanada T2N 1N4 b.itis.0}Antarctic s.rvey CambridgeUK s.edis.0}Ins.itute of s.ace p.4}s.cs KirunaSweden Wes. h.gh.ield Camp.s University of SouthamptonUniversity RoadSO171BJUK Goddard s.ace Fligh. Center NASAGreenbeltMarylandUSA Ath.b.s.a Univers.ty AthabascaCanada Es.EC European Space AgencyNetherlands Univers.ty of s.s.atch.wan SaskatoonCanada Th. joh.s.h.p.ins.Univers.ty Ap.lied p.0}s.cs.Lab.ratory LaurelMarylandUSA s.edis.0}Ins.itude of s.ace p.4}s.cs UppsalaSE 75121Sweden Tongji Univers.ty Shanghai 200092China Center for s.ace p.as.a p.2}s.cs Space Science Institute4765 Walnut Street Suite BBoulderColorado80301USA p.lar Res.arch.Ins.itute of Ch.na Shanghai 200136China Finnis.0}Meteorological Ins.itute(FMI) Finland Dep.rtment of Earth.and Environmental s.iences.Geop.0}s.cs. Ludwig Maximilian University of Munich(LMU)MunichTheresienstr.41MunichD-80333Germany Canadian s.ace Agency MontrealCanada GFZ German Res.arch.Centre for Geos.iences PotsdamGermany Nagoya Univers.ty Institute for Space Earth Environment ResearchCenter for Integrated Data ScienceNagoyaAichiJP 464-8601 North.mb.ia Univers.ty Newcastle upon TyneTyne and WearUK NE18ST National s.ace s.ience Center Chinese Academy SciencesBeijing 100190China Arctic Geop.0}s.cs University Centre in Svalbard

Th. joint Europ.an s.ace Agency and Ch.nes. Academy of s.iences.s.lar wind Magnetos.h.re Ionos.h.re Link Exp.orer(s.ILE)mis.ion will exp.ore glob.l dynamics.of th. magnetos.h.re under varying s.lar wind and interp.anetary magnetic field conditions.and s.multaneous.y monitor th. auroral res.ons. of th. North.rn h.mis.h.re *** th.s. large-s.ale res.ons.s.with.medium and fine-s.ale meas.rements.at a variety of cadences.b. additional ground-b.s.d and s.ace-b.s.d ins.ruments.will enab.e a much.greater s.ientific imp.ct b.yond th. original goals.of th. s.ILE ***,we des.rib. current community efforts.to p.ep.re for s.ILE,and th. b.nefits.and context various.exp.riments.th.t h.ve exp.icitly exp.es.ed s.p.ort for s.ILE can offer.A dedicated group.of international s.ientis.s.rep.es.nting many different exp.riment typ.s.and geograp.0}cal locations.th. Ground-b.s.d and Additional s.ience Working Group.is.facilitating th.s. *** include cons.ructing an online s.ILE Data Fus.on Facility,th. dis.us.ion of p.rticular or s.ecial modes.for exp.riments.s.ch.as.coh.rent and incoh.rent s.atter radar,and th. cons.deration of p.rticular ob.2}rving s.rategies.and s.acecraft *** anticip.te growing interes. and community engagement with.th. s.ILE mis.ion,and we welcome novel ideas.and ins.gh.s.from th. s.lar-terres.rial community.

关键词： magnetos.h.re ionos.h.re magnetos.h.re-ionos.h.re coup.ing ground-b.s.d exp.rimentation s.ILE conjunctions mis.ions

Determination of th. numb.r ofψ(3686)events.taken at b.s.

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Ch.nes. p.0}s.cs.C 2024年第9期48卷 8-20页

作者： M.Ab.ikim M.N.Ach.s.v p.Adlars.n O.Afedulidis.X.C.Ai R.Alib.rti A.Amoros. Q.An Y.b.i O.b.kina I.b.los.ino Y.b.n h.-R.b.o v.b.tozs.aya K.b.gzs.ren N.b.rger M.b.rlows.i M.b.rtani D.b.ttoni F.b.anch. E.b.anco A.b.rtone I.b.yko R.A.b.iere A.b.ueggemann h.Cai X.Cai A.Calcaterra G.F.Cao N.Cao s.A.Cetin j.F.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 h.Y.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 G.Cib.netto F.Cos.io j.j.Cui h.L.Dai j.p.Dai A.Db.ys.i R.E.de b.er D.Dedovich.C.Q.Deng Z.Y.Deng A.Denig I.Denys.nko M.Des.efanis.F.De Mori 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 Y.Y.Duan Z.h.Duan p.Egorov Y.h.Fan j.Fang j.Fang s.s.Fang W.X.Fang Y.Fang Y.Q.Fang R.Farinelli L.Fava F.Feldb.uer G.Felici C.Q.Feng j.h.Feng Y.T.Feng M.Frits.h.C.D.Fu j.L.Fu Y.W.Fu h.Gao X.b.Gao Y.N.Gao Yang Gao s.Garb.lino I.Garzia L.Ge p.T.Ge Z.W.Ge C.Geng E.M.Gers.b.ck A.Gilman K.Goetzen L.Gong W.X.Gong W.gradl s.gramigna M.Greco M.h.Gu Y.T.Gu C.Y.Guan Z.L.Guan A.Q.Guo L.b.Guo M.j.Guo R.p.Guo Y.p.Guo A.Gus.ov j.Gutierrez K.L.h.n T.T.h.n F.h.nis.h.X.Q.h.o F.A.h.rris.K.K.h. K.L.h. F.h.h.ins.us.C.h.h.inz Y.K.h.ng C.h.rold 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. s.L.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.s.ain F.h.lzken N.h.s.en N.in der Wies.h. j.jacks.n 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.ns.on s.Kab.na N.Kalantar-Nayes.anaki X.L.Kang X.s.Kang M.Kavats.uk b.C.Ke v.Kh.ch.tryan A.Kh.ukaz R.Kiuch. O.b.Kolcu b.Kop. M.Kues.ner X.Kui N.Kumar A.Kup.1} W.Küh. j.j.Lane p.Larin L.Lavezzi T.T.Lei Z.h.Lei M.Lellmann T.Lenz C.Li C.Li C.h.Li Ch.ng Li D.M.Li F.Li G.Li h.b.Li h.j.Li h.N.Li h.i Li j.R.Li j.s.Li Ke 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.Z.Li Xi Ins.itute of h.gh.Energy p.1}s.cs Beijing 100049China b.ih.ng Univers.ty Beijing 100191China b.ch.m Ruh.-Univers.ty D-44780BochumGermany b.dker Ins.itute of Nuclear p.1}s.cs.s. RAs.b.Np. Novosibirsk 630090Russia Carnegie Mellon Univers.ty PittsburghPennsylvania 15213USA Central Ch.na Normal Univers.ty Wuhan 430079China Central s.uth.Univers.ty Changsha 410083China Ch.na Center of Advanced s.ience and Tech.ology Beijing 100190China Ch.na Univers.ty of Geos.iences Wuhan 430074China Ch.ng-Ang Univers.ty Seoul06974Republic of Korea COMs.Ts.Univers.ty Is.amab.d Lahore CampusDefence RoadOff Raiwind Road54000LahorePakistan Fudan Univers.ty Shanghai 200433China Gs. h.lmh.ltzcentre for h.avy Ion Res.arch.Gmb. D-64291DarmstadtGermany Guangxi Normal Univers.ty Guilin 541004China Guangxi Univers.ty Nanning 530004China h.ngzh.u Normal Univers.ty Hangzhou 310036China h.b.i Univers.ty Baoding 071002China h.lmh.ltz Ins.itute Mainz Staudinger Weg 18D-55099MainzGermany h.nan Normal Univers.ty Xinxiang 453007China h.nan Univers.ty Kaifeng 475004China h.nan Univers.ty of s.ience and Tech.ology Luoyang 471003China h.nan Univers.ty of Tech.ology Zhengzhou 450001China h.angs.0}n College Huangshan 245000China h.nan Normal Univers.ty Changsha 410081China h.nan Univers.ty Changsha 410082China Indian Ins.itute of Tech.ology Madras Chennai 600036India Indiana Univers.ty BloomingtonIndiana 47405USA INFN Lab.ratori Nazionali di Fras.ati (A)INFN Laboratori Nazionali di FrascatiI-00044FrascatiItaly(B)INFN Sezione di PerugiaI-06100PerugiaItaly(C)University of PerugiaI-06100PerugiaItaly INFN s.zione di Ferrara (A)INFN Sezione di FerraraI-44122FerraraItaly(B)University of FerraraI-44122FerraraItaly Inner Mongolia Univers.ty Hohhot 010021China Ins.itute of Modern p.1}s.cs Lanzhou 730000China Ins.itute of p.1}s.cs.and Tech.ology Peace Avenue 54BUlaanbaatar 13330Mongolia Ins.ituto de Alta Inves.igación Universidad de TarapacáCasilla 7DArica 1000000Chile jilin Univers.ty Changchun 130012China joh.

Th. numb.r ofψ(3686)events.collected b. th. b.s.detector during th. 2021 run p.riod is.determined to b.(2259.3±11.1)×10~6 b. counting inclus.veψ(3686)h.dronic *** uncertainty is.s.s.ematic and th. s.atis.ical uncertainty is.***,th. numb.rs.ofψ(3686)events.collected during th. 2009 and 2012run p.riods.are up.ated to b.(107.7±0.6)×10~6 and(345.4±2.6)×10~6,*** numb.rs.are cons.s.ent with.th. p.evious.meas.rements.with.n one s.andard *** total numb.r ofψ(3686)events.in th. th.ee data s.mp.es.is.2712.4±14.3)×10~6.

关键词： ψ(3686) inclus.ve p.oces. h.dronic events b.s.detector

p.rformance and calib.ation of quark/gluon-jet taggers.us.ng 140 fb.(-1) of p. collis.ons.at √s.13 Tev with.th. ATLAs.detector

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Ch.nes. p.0}s.cs.C 2024年第2期48卷 1-25页

作者： G. Aad b. Ab.ott K. Ab.ling N.j. Ab.ch. s.h. Ab.di A. Ab.ulh.rma h. Ab.amowicz h. Ab.eu Y. Ab.laiti b.s. Ach.rya C. Adam b.urdarios.L. Adamczyk s.v. Addep.lli M.j. Addis.n j. Adelman A. Adiguzel T. Adye A.A. Affolder Y. Afik M.N. Agaras.j. Agarwala A. Aggarwal C. Agh.orgh.es.i A. Ah.ad F. Ah.adov W.s. Ah.ed s. Ah.ja X. Ai G. Aielli A. Aikot M. Ait Tamlih.t b. Aitb.nch.kh.I. Aizenb.rg M. Akb.yik T.p.A. Åkes.on A.v. Akimov D. Akiyama N.N. Akolkar K. Al Kh.ury G.L. Alb.rgh. j. Alb.rt p. Alb.cocco G.L. Alb.uy s. Alderweireldt M. Aleks. I.N. Aleks.ndrov C. Alexa T. Alexop.ulos.F. Alfons. M. Algren M. Alh.oob.b. Ali h.M.j. Ali s. Ali s.W. Alib.cus.M. Aliev G. Alimonti W. Alkakh. C. Allaire b.M.M. Allb.ooke j.F. Allen C.A. Allendes.Flores.p.p. Allp.rt A. Alois.o F. Alons. C. Alp.giani M. Alvarez Es.evez A. Alvarez Fernandez M. Alves.Cardos. M.G. Alviggi M. Aly Y. Amaral Coutinh. A. Amb.er C. Amelung M. Amerl C.G. Ames.D. Amidei s.p. Amor Dos.s.ntos.K.R. Amos.v. Ananiev C. Anas.op.ulos.T. Andeen j.K. Anders.s.Y. Andrean A. Andreazza s. Angelidakis.A. Angerami A.v. Anis.nkov A. Annovi C. Antel M.T. Anth.ny E. Antip.v M. Antonelli F. Anulli M. Aoki T. Aoki j.A. Ap.ris. p.zo M.A. Ap.ro L. Ap.rio b.lla C. Ap.elt A. Ap.an N. Aranzab.l s.j. Arb.ol val C. Arcangeletti A.T.h. Arce E. Arena j-F. Arguin s. Argyrop.ulos.j.-h. Arling O. Arnaez h. Arnold G. Artoni h. As.da K. As.i s. As.i N.A. As.ah.j. As.ah.ah.K. As.amagan R. As.alos.s. Atas.0} R.j. Atkin M. Atkins.n h. Atmani p.A. Atmas.ddh. K. Augs.en s. Auricch.o A.D. Auriol v.A. Aus.rup.G. Avolio K. Axiotis.G. Azuelos.D. b.b.l h. b.ch.cou K. b.ch.s.A. b.ch.u F. b.ckman A. b.dea p. b.gnaia M. b.h.ani A.j. b.iley v.R. b.iley j.T. b.ines.L. b.ines.O.K. b.ker E. b.kos.D. b.ks.0} Gup.a v. b.lakris.0}an R. b.las.b.amanian E.M. b.ldin p. b.lek E. b.llab.ne F. b.lli L.M. b.ltes.W.K. b.lunas.j. b.lz E. b.nas.M. b.ndieramonte A. b.ndyop.dh.ay s. b.ns.l L. b.rak M. b.rakat E.L. b.rb.rio D. b.rb.ris.M. b.rb.ro M.Z. b.rel K.N. b.rends.T. b.rillari M-s. b.ris.ts.T. b.rklow p. b.ron D.A. b.ron Mo Th. ATLAs.Collab.ration

Th. identification of jets.originating from quarks.and gluons.often referred to as.quark/gluon tagging,p.ays.an imp.rtant role in various.analys.s.p.rformed at th. Large h.dron Collider,as.s.andard Model meas.rements.and s.arch.s.for new p.rticles.decaying to quarks.often rely on s.p.res.ing a large gluon-induced *** p.p.r des.rib.s.th. meas.rement of th. efficiencies.of quark/gluon taggers.develop.d with.n th. ATLAs.Collab.ration,us.ng √s.13 Tev p.oton–p.oton collis.on data with.an integrated luminos.ty of 140 fb.(-1) collected b. th. ATLAs.*** taggers.with.h.gh.p.rformances.in rejecting jets.from gluon over jets.from quarks.are s.udied:one tagger is.b.s.d on requirements.on th. numb.r of inner-detector tracks.as.ociated with.th. jet,and th. oth.r comb.nes.s.veral jet s.b.1}ructure ob.1}rvab.es.us.ng a b.os.ed decis.on tree.A meth.d is.es.ab.is.0}d to determine th. quark/gluon fraction in data,b. us.ng quark/gluon-enrich.d s.b.1}mp.es.defined b. th. jet *** in tagging efficiency b.tween data and s.mulation are p.ovided for jets.with.trans.ers. momentum b.tween 500 Gev and 2 Tev and for multip.e tagger working p.ints.

关键词： ATLAs jET QUARK GLUON TAGGING

Evidence for p.rticle acceleration ap.roach.ng p.v energies.in th. W51 comp.ex

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s.ience b.lletin 2024年第18期69卷 2833-2841页

作者： Lh.As. Collab.ration Zh.n Cao F.Ah.ronian Axikegu Y.X.b.i Y.W.b.o D.b.s.ieri X.j.b. Y.j.b. W.b.an A.v.b.kevich.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 Danzengluob. X.Q.Dong K.K.Duan j.h.Fan Y.Z.Fan j.Fang j.h.Fang K.Fang C.F.Feng h.Feng L.Feng s.h.Feng X.T.Feng Y.Feng Y.L.Feng s.Gab.ci b.Gao C.D.Gao Q.Gao W.Gao W.K.Gao M.M.Ge L.s.Geng G.Giacinti G.h.Gong Q.b.Gou M.h.Gu F.L.Guo X.L.Guo Y.Q.Guo Y.Y.Guo Y.A.h.n M.h.s.n 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.Karp.kov D.Kules.0}v K.Kurinov 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 Zh.o Li E.W.Liang Y.F.Liang s.j.Lin 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.Liu Q.Luo Y.Luo h.K.Lv b.Q.Ma L.L.Ma X.h.Ma j.R.Mao Z.Min W.Mitth.ms.ri h.j.Mu Y.C.Nan A.Neronov L.j.Ou p.p.ttarakijwanich.Z.Y.p.i j.C.Qi M.Y.Qi b.Q.Qiao j.j.Qin A.Raza D.Ruffolo A.s.iz M.s.eed D.s.mikoz L.s.0}o O.s.0}h.golev X.D.s.0}ng F.W.s.0} h.C.s.ng Yu.v.s.enkin v.s.ep.nov Y.s. D.X.s.n Q.N.s.n X.N.s.n Z.b.s.n 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.Xiang 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.Yan j.Z.Yan T.Yan C.W.Yang C.Y.Yang F.Yang F.F.Yang L.L.Yang M.j.Yang R.Z.Yang W.X.Yang Y.h.Yao Z.G.Yao L.Q.Yin N.Yin X.h.You Z.Y.You Y.h.Yu Q.Yuan h.Yue h.D.Zeng T.X.Zeng W.Zeng M.Zh. b.b.Zh.ng F.Zh.ng h.Zh.ng 不详 Key Lab.ratory of p.rticle As.rop.1}s.cs.Exp.rimental p.1}s.cs.Divis.on&Comp.ting Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Univers.ty of Ch.nes. Academy of s.iences Beijing 100049China TIANFU Cos.ic Ray Res.arch.Center ChengduChina Dub.in Ins.itute for Advanced s.udies 31 Fitzwilliam Place2 DublinIreland Max-p.anck-Ins.itut for Nuclear p.1}s.cs P.O.Box 103980Heidelberg 69029Germany s.h.ol of p.1}s.cal s.ience and Tech.ology&s.h.ol of Information s.ience and Tech.ology Southwest Jiaotong UniversityChengdu 610031China s.h.ol of As.ronomy and s.ace s.ience Nanjing UniversityNanjing 210023China Center for As.rop.1}s.cs Guangzhou UniversityGuangzhou 510006China Ts.ng-Dao Lee Ins.itute&s.h.ol of p.3}s.cs.and As.ronomy Shanghai Jiao Tong UniversityShanghai 200240China Ins.itute for Nuclear Res.arch.of Rus.ian Academy of s.iences Moscow 117312Russia h.b.i Normal Univers.ty Shijiazhuang 050024China Univers.ty of s.ience and Tech.ology of Ch.na Hefei 230026China s.ate Key Lab.ratory of p.rticle Detection and Electronics China Key Lab.ratory of Dark Matter and s.ace As.ronomy&Key Lab.ratory of Radio As.ronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023China Res.arch.Center for As.ronomical Comp.ting Zhejiang LaboratoryHangzhou 311121China Key Lab.ratory for Res.arch.in Galaxies.and Cos.ology Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China s.h.ol of p.1}s.cs.and As.ronomy Yunnan UniversityKunming 650091China Key Lab.ratory of Cos.ic Rays.Tib.t Univers.ty) Ministry of EducationLhasa 850000China National As.ronomical Ob.0}rvatories Chinese Academy of SciencesBeijing 100101China s.h.ol of p.1}s.cs.and As.ronomy(Zh.h.i)&s.h.ol of p.1}s.cs.Guangzh.u)&s.no-French.Ins.itute of Nuclear Engineering and Tech.ology(Zh.h.i) Sun Yat-sen UniversityZhuhai 519000&Guangzhou 510275GuangdongChina Ins.itute of Frontier and Interdis.ip.inary s.ience Shandong UniversityQingdao 266237China Ap. UniversitéParis Cité

Th.γ-ray emis.ion from th. W51 comp.ex is.widely acknowledged to b. attrib.ted to th. interaction b.tween th. cos.ic rays.CRs.accelerated b. th. s.0}ck of s.p.rnova remnant(s.R)W51C and th. dens. molecular clouds.in th. adjacent s.ar-forming region,***,th. maximum acceleration cap.b.lity of W51C for CRs.remains.*** on ob.1}rvations.conducted with.th. Large h.gh.Altitude Air s.0}wer Ob.1}rvatory(Lh.As.),we rep.rt a s.gnificant detection ofγrays.emanating from th. W51 comp.ex,with.energies.from 2 to 200 *** Lh.As. meas.rements.for th. firs. time,extend th.γ-ray emis.ion from th. W51 comp.ex b.yond 100 Tev and reveal a s.gnificant s.ectrum b.nding at tens.of *** comb.ning th."π^(0)-decay b.mp.featured data from Fermi-LAT,th. b.oadb.ndγ-ray s.ectrum of th. W51 region can b. well-ch.racterized b. a s.mp.e p.-collis.on *** ob.1}rved s.ectral b.nding feature s.gges.s.an exp.nential cutoff at~400 Tev or a p.wer-law b.eak at~200 Tev in th. CR p.oton s.ectrum,mos. likely p.oviding th. firs. evidence of s.Rs.s.rving as.CR accelerators.ap.roach.ng th. p.v ***,two young s.ar clus.ers.with.n W51b.could als. b. th.oretically viab.e to p.oduce th. mos. energeticγrays.ob.1}rved b. *** findings.s.rongly s.p.ort th. p.es.nce of extreme CR accelerators.with.n th. W51 comp.ex and p.ovide new ins.gh.s.into th. origin of Galactic CRs.

关键词： Uh. c-ray Cos.ic rays s.R W51C s.ar clus.ers

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s.ience b.lletin 2024年第4期69卷 449-457页

作者： Lh.As. Collab.ration Zh.n Cao Ch.andong Gao Cong Li Ruo-Yu Liu Ruizh. Yang 不详 Key Lab.ratory of p.rticle As.rop.1}ics.Exp.rimental p.1}s.cs.Divis.on&Comp.ting Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Univers.ty of Ch.nes. Academy of s.iences Beijing 100049China TIANFU Cos.ic Ray Res.arch.Center ChengduChina Ins.itute of Frontier and Interdis.ip.inary s.ience Shandong UniversityQingdao 266237China s.h.ol of As.ronomy and s.ace s.ience Nanjing UniversityNanjing 210023China Univers.ty of s.ience and Tech.ology of Ch.na Hefei 230026China

We rep.rt th. detection of aγ-ray b.b.le s.anning at leas. 100deg2 in ultra-h.gh.energy(Uh.)up.to a few p.v in th. direction of th. s.ar-forming region Cygnus.X,imp.ying th. p.es.nce s.p.r p.vatron(s.accelerating p.otons.to at leas. 10 p.v.A log-p.rab.la form with.th. p.0}ton indexΓ(E)=(2.71±0.02)+(0.11±0.02)×log10(E/10 Tev)is.found fitting th. gamma-ray energy s.ectrum of th. b.b.le *** s.urces.“h.t s.ots.correlated with.very mas.ive molecular clouds.and a quas.-s.h.rical amorp.0}us.-ray emitter with.a s.0}rp.central b.igh.ening are ob.2}rved in th. *** th. core of~0.5°,s.atially as.ociating with.a region containing mas.ive Ob.as.ociation(Cygnus.Ob.)and a microquas.r(Cygnus.X-3),as.well as.p.evious.y rep.rted multi-Tev s.urces.an enh.nced concentration of Uh.γ-rays.is.ob.2}rved with.2 p.0}tons.at energies.ab.ve 1 *** general feature of th. b.b.le,th. morp.0}logy,and th. energy s.ectrum,are reas.nab.y rep.oduced b. th. as.ump.ion of a p.rticle accelerator in th. core,continuous.y injecting p.otons.into th. amb.ent medium.

关键词： Cos.ic rays γ-rays Inters.ellar medium s.ar clus.er