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Acta metallurgica sinica(English Letters) 2007年第3期20卷 199-204页

作者： z.h. zou x.m. yu b.s. zhang y. qi school of science Northeastern University Shenyang 110004 China

A reactive co-deposition processing for obtaining high-quality.single-phase bi2sr2Cax-1CuxOy.（bi2212） thin films has been investigated using molecular beam epitaxy.（mbE） with 2.7 ×10^-3pa ozone gas introduction for oxidation. The thin films with a constant composition of almost 2 ： 2 ： 1 ： 2 were designed to be fabricated at the substrate temperature between 675 and 780℃, the substrate temperature dependence of the surface morphology.and the emergence phases were investigated in detail. A noticeable result is that the distribution of Cu element in the thin films is sensitively.changed with the substrate temperature. At 750℃ it is inclined to locate in the periphery.of each grain through the diffusion process. At 780℃ the Cu-compositional fluctuation brought around the dendritic cry.tal growth in the thin films. below 705℃, the bi2212 single-phase cannot be achieved in the thin films.

关键词： bi2212 (bi2sr2Cax-1CuxOy. single-phase dendritic growth substrate temperature

sTCF conceptual design report (Volume 1): Phy.ics & detector

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Frontiers of phy.ics 2024年第1期19卷 1-154页

作者： m.Achasov x.C.Ai L.P.An R.Aliberti Q.An x.z.bai y.bai O.bakina A.barny.kov V.blinov V.bobrovnikov D.bodrov A.bogomy.gkov A.bondar I.boy.o z.h.bu F.m.Cai h.Cai J.J.Cao Q.h.Cao x.Cao z.Cao Q.Chang K.T.Chao D.y.Chen h.Chen h.x.Chen J.F.Chen K.Chen L.L.Chen P.Chen s.L.Chen s.m.Chen s.Chen s.P.Chen W.Chen x.Chen x.F.Chen x.R.Chen y.Chen y.Q.Chen h.y.Cheng J.Cheng s.Cheng T.G.Cheng 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.Druzhinin D.s.Du y.J.Du z.G.Du L.m.Duan D.Epifanov 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.Guskov K.L.han L.han m.han x.Q.hao J.b.he s.Q.he x.G.he y.L.he z.b.he z.x.heng b.L.hou T.J.hou y.R.hou C.y.hu h.m.hu K.hu R.J.hu W.h.hu x.h.hu y.C.hu J.hua G.s.huang J.s.huang m.huang Q.y.huang W.Q.huang x.T.huang x.J.huang y.b.huang y.s.huang N.hüsken 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.Khoukaz I.Koop E.Kravchenko A.Kuzmin y.Lei E.Levichev 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.Logashenko 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.m.ng R.mitchell A.Nefediev y.Nefedov s.L.Olsen Q.Ouy.ng P.Pakhlov G.Pakhlova x.Pan y.Pan E.Passemar y.P.Pei h.P.Peng L.Peng x.y.Peng x.J.Peng K.Peters s.Pivovarov 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.Rademacker C.F.Redmer h.y.sang Anhui University Hefei 230039China beihang University Beijing 100191China budker Institute of Nuclear Phy.ics Novosibirsk 630090Russia CAs Key.Laboratory.of Theoretical Phy.ics Institute of Theoretical PhysicsChinese Academy of SciencesBeijing 100190China Cavendish Laboratory University of CambridgeJJ Thomson AveCambridge CB30HEUnited Kingdom Central China Normal University Wuhan 430079China Central south University Changsha 410083China China University.of Geosciences Wuhan 430074China China University.of mining and Technology Xuzhou 221116China École Poly.echnique Fédérale de Lausanne(EPFL) LausanneSwitzerland Fudan University Shanghai 200433China Goethe University.Frankfurt D-60325 Frankfurt am MainGermany Guangxi Normal University Guilin 541004China Guangxi Uninversity Nanning 530004China hangzhou Institute for Advanced study UCASHangzhou 310024China hebei Normal University Shijiazhuang 050024China hebei University Baoding 071002China hefei University.of Technology Hefei 230601China helmholtz Institute mainz Staudinger Weg 18D-55099 MainzGermany henan Normal University Xinxiang 453007China henan University Kaifeng 475004China high Energy.Phy.ics Center Chung-Ang UniversitySeoul 06974Korea higher school of Economy.11 Pokrovsky.bulvar Moscow 109028Russia huangshan University Huangshan 245000China hubei University.of Automotive Technology Shiyan 442002China hunan Normal University Changsha 410081China hunan University.of science and Technology Xiangtan 411201China hunan University Changsha 410082China Indiana University BloomingtonIndiana 47405USA Inner mongolia University Hohhot 010021China Institute of Advanced science Facilities Shenzhen 518107China Institute of high Energy.Phy.ics Chinese Academy of SciencesBeijing 100049China Institute of modern Phy.ics Chinese Academy of SciencesLanzhou 730000China Institute of Phy.ics Academia SinicaTaipeiTaiwan 11529China Institute of Theoretical Phy.ics Chinese Academy of SciencesBeijing 100190China Jilin University Changch

The superτ-charm facility.sTCF)is an electron–positron collider proposed by.the Chinese particle phy.ics *** is designed to operate in a center-of-mass energy.range from 2 to 7 GeV with a peak luminosity.of 0.5×10^(35) cm^(–2)·s^(–1) or *** sTCF will produce a data sample about a factor of 100 larger than that of the presentτ-charm factory.the bEPCII,providing a unique platform for exploring the asy.metry.of matter-antimatter(charge-parity.violation),in-depth studies of the internal structure of hadrons and the nature of non-perturbative strong interactions,as well as searching for exotic hadrons and phy.ics bey.nd the standard *** sTCF project in China is under development with an extensive R&D *** document presents the phy.ics opportunities at the sTCF,describ.s.conceptual designs of the sTCF detector sy.tem,and discusses future plans for detector R&D and phy.ics case studies.

关键词： electron–positron collider tau-charm region high luminosity sTCF detector conceptual design

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

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Chinese Phy.ics C 2024年第8期48卷 6-33页

作者： m.Ablikim m.N.Achasov P.Adlarson O.Afedulidis x.C.Ai R.Aliberti A.Amoroso Q.An y.bai O.bakina I.balossino y.ban h.-R.bao V.batozskay. K.begzsuren N.berger m.berlowski m.bertani D.bettoni F.bianchi E.bianco A.bortone I.boy.o R.A.briere A.brueggemann h.Cai x.Cai A.Calcaterra G.F.Cao N.Cao s.A.Cetin J.F.Chang W.L.Chang G.R.Che G.Chelkov C.Chen C.h.Chen Chao Chen G.Chen h.s.Chen m.L.Chen s.J.Chen s.L.Chen s.m.Chen T.Chen x.R.Chen x.T.Chen y.b.Chen y.Q.Chen z.J.Chen z.y.Chen s.K.Choi x.Chu 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.Destefanis F.De mori b.Fang s.s.Fang W.x.Fang y.Fang y.Q.Fang R.Farinelli L.Fava F.Feldbauer G.Felici C.Q.Feng J.h.Feng y.T.Feng K.Fischer m.Fritsch C.D.Fu J.L.Fu y.W.Fu h.Gao y.N.Gao y.ng Gao s.Garbolino I.Garzia P.T.Ge z.W.Ge C.Geng E.m.Gersabeck 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.Guskov J.Gutierrez K.L.han T.T.han x.Q.hao F.A.harris K.K.he K.L.he F.h.heinsius C.h.heinz y.K.heng C.herold T.holtmann P.C.hong G.y.hou x.T.hou y.R.hou z.L.hou b.y.hu h.m.hu J.F.hu T.hu y.hu G.s.huang K.x.huang L.Q.huang x.T.huang y.P.huang T.hussain F.h\"olzken N.h\"usken N.in der Wiesche m.Irshad J.Jackson s.Janchiv 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.Johansson s.Kabana N.Kalantar-Nay.stanaki x.L.Kang x.s.Kang m.Kavatsyuk b.C.Ke V.Khachatry.n A.Khoukaz R.Kiuchi O.b.Kolcu b.Kopf m.Kuessner x.Kui A.Kupsc W.K\"uhn J.J.Lane P.Larin L.Lavezzi T.T.Lei z.h.Lei h.Leithoff m.Lellmann T.Lenz C.Li C.Li C.h.Li Cheng Li D.m.Li F.Li G.Li h.Li h.b.Li h.J.Li h.N.Li hui 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 high Energy.Phy.ics Chinese Academy of SciencesBeijing 100049China beihang University Beijing 100191China bochum Ruhr-University D-44780 BochumGermany budker Institute of Nuclear Phy.ics sb RAs(bINP) Novosibirsk 630090Russia Carnegie mellon University PittsburghPennsylvania 15213USA Central China Normal University Wuhan 430079China Central south University Changsha 410083China China Center of Advanced science and Technology Beijing 100190China China University.of Geosciences Wuhan 430074China Chung-Ang University Seoul06974Republic of Korea COmsATs University.Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200433China GsI helmholtzcentre for heavy.Ion Research Gmbh D-64291 DarmstadtGermany Guangxi Normal University Guilin 541004China Guangxi University Nanning 530004China hangzhou Normal University Hangzhou 310036China hebei University Baoding 071002China helmholtz Institute mainz Staudinger Weg 18D-55099 MainzGermany henan Normal University Xinxiang 453007China henan University Kaifeng 475004China henan University.of science and Technology Luoyang 471003China henan University.of Technology Zhengzhou 450001China huangshan College Huangshan 245000China hunan Normal University Changsha 410081China hunan University Changsha 410082China Indian Institute of Technology.madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA INFN Laboratori Nazionali di Frascati INFN Laboratori Nazionali di FrascatiI-00044FrascatiItaly INFN Laboratori Nazionali di Frascati INFN Sezione di PerugiaI-06100PerugiaItaly INFN Laboratori Nazionali di Frascati University of PerugiaI-06100PerugiaItaly INFN sezione di Ferrara INFN Sezione di FerraraI-44122FerraraItaly INFN sezione di Ferrara University of FerraraI-44122FerraraItaly Inner mongolia University Hohhot 010021China Institute of modern Phy.ics Lanzhou 730000China Institute of Phy.ics and Technology Peace Avenue 54BUlaanbaatar 13330Mongolia Instituto de A

Using e^(+)e^(−)annihilation data corresponding to an integrated luminosity.of 2.93 fb^(−1)taken at the center-of-mass energy.s=3.773 GeV with the b.s.II detector,a joint amplitude analy.is is performed on the decay. D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η).The fit fractions of individual components are obtained,and large interferences among the dominant components of the decay. D^(0)→a_(1)(1260)π,D^(0)→π(1300)π,D^(0)→ρ(770)ρ(770),and D^(0)→2(ππ)_(s)are observed in both *** the obtained amplitude model,the CP-even fractions of D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η)are determined to be(75.2±1.1_(stat).±1.5_(sy.t.))%and(68.9±1.5_(stat).±2.4_(sy.t.))%,*** branching fractions of D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η)are measured to be(0.688±0.010_(stat.)±0.010_(sy.t.))%and(0.951±0.025_(stat.)±0.021_(sy.t.))%,*** amplitude analy.is provides an important model for the binning strategy.in measuring the strong phase parameters of D^(0)→4πwhen used to determine the CKm angleγ(ϕ_(3))via the b^(−)→DK^(−)decay.

关键词： b.s.II D^(0)meson decay. amplitude analy.is CP-even fraction

Determination of the number ofψ(3686)events taken at b.s.

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Chinese Phy.ics C 2024年第9期48卷 8-20页

作者： m.Ablikim m.N.Achasov P.Adlarson O.Afedulidis x.C.Ai R.Aliberti A.Amoroso Q.An y.bai O.bakina I.balossino y.ban h.-R.bao V.batozskay. K.begzsuren N.berger m.berlowski m.bertani D.bettoni F.bianchi E.bianco A.bortone I.boy.o R.A.briere A.brueggemann h.Cai x.Cai A.Calcaterra G.F.Cao N.Cao s.A.Cetin J.F.Chang G.R.Che G.Chelkov C.Chen C.h.Chen Chao Chen G.Chen h.s.Chen h.y.Chen m.L.Chen s.J.Chen s.L.Chen s.m.Chen T.Chen x.R.Chen x.T.Chen y.b.Chen y.Q.Chen z.J.Chen z.y.Chen s.K.Choi 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.Destefanis 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.Feldbauer G.Felici C.Q.Feng J.h.Feng y.T.Feng m.Fritsch C.D.Fu J.L.Fu y.W.Fu h.Gao x.b.Gao y.N.Gao y.ng Gao s.Garbolino I.Garzia L.Ge P.T.Ge z.W.Ge C.Geng E.m.Gersabeck 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.Guskov J.Gutierrez K.L.han T.T.han F.hanisch x.Q.hao F.A.harris K.K.he K.L.he F.h.heinsius C.h.heinz y.K.heng C.herold T.holtmann P.C.hong G.y.hou x.T.hou y.R.hou z.L.hou b.y.hu h.m.hu J.F.hu s.L.hu T.hu y.hu G.s.huang K.x.huang L.Q.huang x.T.huang y.P.huang T.hussain F.hölzken N.hüsken N.in der Wiesche J.Jackson s.Janchiv 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.Johansson s.Kabana N.Kalantar-Nay.stanaki x.L.Kang x.s.Kang m.Kavatsyuk b.C.Ke V.Khachatry.n A.Khoukaz R.Kiuchi O.b.Kolcu b.Kopf m.Kuessner x.Kui N.Kumar A.Kupsc W.Kühn J.J.Lane P.Larin L.Lavezzi T.T.Lei z.h.Lei m.Lellmann T.Lenz C.Li C.Li C.h.Li Cheng Li D.m.Li F.Li G.Li h.b.Li h.J.Li h.N.Li hui 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 Institute of high Energy.Phy.ics Beijing 100049China beihang University Beijing 100191China bochum Ruhr-University D-44780BochumGermany budker Institute of Nuclear Phy.ics sb RAs(bINP) Novosibirsk 630090Russia Carnegie mellon University PittsburghPennsylvania 15213USA Central China Normal University Wuhan 430079China Central south University Changsha 410083China China Center of Advanced science and Technology Beijing 100190China China University.of Geosciences Wuhan 430074China Chung-Ang University Seoul06974Republic of Korea COmsATs University.Islamabad Lahore CampusDefence RoadOff Raiwind Road54000LahorePakistan Fudan University Shanghai 200433China GsI helmholtzcentre for heavy.Ion Research Gmbh D-64291DarmstadtGermany Guangxi Normal University Guilin 541004China Guangxi University Nanning 530004China hangzhou Normal University Hangzhou 310036China hebei University Baoding 071002China helmholtz Institute mainz Staudinger Weg 18D-55099MainzGermany henan Normal University Xinxiang 453007China henan University Kaifeng 475004China henan University.of science and Technology Luoyang 471003China henan University.of Technology Zhengzhou 450001China huangshan College Huangshan 245000China hunan Normal University Changsha 410081China hunan University Changsha 410082China Indian Institute of Technology.madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA INFN Laboratori Nazionali di Frascati (A)INFN Laboratori Nazionali di FrascatiI-00044FrascatiItaly(B)INFN Sezione di PerugiaI-06100PerugiaItaly(C)University of PerugiaI-06100PerugiaItaly INFN sezione di Ferrara (A)INFN Sezione di FerraraI-44122FerraraItaly(B)University of FerraraI-44122FerraraItaly Inner mongolia University Hohhot 010021China Institute of modern Phy.ics Lanzhou 730000China Institute of Phy.ics and Technology Peace Avenue 54BUlaanbaatar 13330Mongolia Instituto de Alta Investigación Universidad de TarapacáCasilla 7DArica 1000000Chile Jilin University Changchun 130012China Joha

The number ofψ(3686)events collected by.the b.s.detector during the 2021 run period is determined to be(2259.3±11.1)×10~6 by.counting inclusiveψ(3686)hadronic *** uncertainty.is sy.tematic and the statistical uncertainty.is ***,the numbers ofψ(3686)events collected during the 2009 and 2012run periods are updated to be(107.7±0.6)×10~6 and(345.4±2.6)×10~6,*** numbers are consistent with the previous measurements within one standard *** total number ofψ(3686)events in the three data samples is(2712.4±14.3)×10~6.

关键词： ψ(3686) inclusive process hadronic events b.s.detector

Evidence for particle acceleration approaching PeV energies in the W51 complex

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science bulletin 2024年第18期69卷 2833-2841页

作者： LhAAsO Collaboration zhen Cao F.Aharonian Axikegu y.x.bai y.W.bao D.b.s.ieri x.J.bi y.J.bi W.bian A.V.bukevich Q.Cao W.y.Cao zhe Cao J.Chang J.F.Chang A.m.Chen E.s.Chen h.x.Chen Liang Chen Lin Chen Long Chen m.J.Chen m.L.Chen Q.h.Chen s.Chen s.h.Chen s.z.Chen T.L.Chen y.Chen N.Cheng y.D.Cheng m.y.Cui s.W.Cui x.h.Cui y.D.Cui b.z.Dai h.L.Dai z.G.Dai Danzengluobu 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.Gabici 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.han m.hasan h.h.he h.N.he J.y.he y.he y.K.hor b.W.hou C.hou x.hou h.b.hu Q.hu s.C.hu D.h.huang T.Q.huang W.J.huang x.T.huang x.y.huang y.huang x.L.Ji h.y.Jia K.Jia K.Jiang x.W.Jiang z.J.Jiang m.Jin m.m.Kang I.Karpikov D.Kuleshov K.Kurinov b.b.Li C.m.Li Cheng 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 zhe Li zhuo 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.mitthumsiri h.J.mu y.C.Nan A.Neronov L.J.Ou P.Pattarakijwanich z.y.Pei J.C.qi m.y.qi b.Q.qiao J.J.qin A.Raza D.Ruffolo A.sáiz m.saeed D.semikoz L.shao O.shchegolev x.D.sheng F.W.shu h.C.song yu.V.stenkin V.stepanov y.su D.x.sun Q.N.sun x.N.sun 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 zhen Wang zheng 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.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.yu Q.yuan h.yue h.D.zeng T.x.zeng W.zeng m.zha b.b.zhang F.zhang h.zhang 不详 Key.Laboratory.of Particle Astrophy.ics&Experimental Phy.ics Division&Computing Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University.of Chinese Academy.of sciences Beijing 100049China TIANFU Cosmic Ray.Research Center ChengduChina Dublin Institute for Advanced studies 31 Fitzwilliam Place2 DublinIreland max-Planck-Institut for Nuclear Phy.ics P.O.Box 103980Heidelberg 69029Germany school of Phy.ical science and Technology.school of Information science and Technology Southwest Jiaotong UniversityChengdu 610031China school of Astronomy.and space science Nanjing UniversityNanjing 210023China Center for Astrophy.ics Guangzhou UniversityGuangzhou 510006China Tsung-Dao Lee Institute&school of Phy.ics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China Institute for Nuclear Research of Russian Academy.of sciences Moscow 117312Russia hebei Normal University Shijiazhuang 050024China University.of science and Technology.of China Hefei 230026China state Key.Laboratory.of Particle Detection and Electronics China Key.Laboratory.of Dark matter and space Astronomy.Key.Laboratory.of Radio Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023China Research Center for Astronomical Computing Zhejiang LaboratoryHangzhou 311121China Key.Laboratory.for Research in Galaxies and Cosmology Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China school of Phy.ics and Astronomy Yunnan UniversityKunming 650091China Key.Laboratory.of Cosmic Ray.(Tibet University. Ministry of EducationLhasa 850000China National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China school of Phy.ics and Astronomy.zhuhai)&school of Phy.ics(Guangzhou)&sino-French Institute of Nuclear Engineering and Technology.zhuhai) Sun Yat-sen UniversityZhuhai 519000&Guangzhou 510275GuangdongChina Institute of Frontier and Interdisciplinary.science Shandong UniversityQingdao 266237China APC UniversitéParis Cité

Theγ-ray.emission from the W51 complex is widely.acknowledged to be attributed to the interaction between the cosmic ray.(CRs)accelerated by.the shock of supernova remnant(sNR)W51C and the dense molecular clouds in the adjacent star-forming region,***,the max.m.m acceleration capability.of W51C for CRs remains *** on observations conducted with the Large high Altitude Air shower Observatory.LhAAsO),we report a significant detection ofγray. emanating from the W51 complex,with energies from 2 to 200 *** LhAAsO measurements,for the first time,extend theγ-ray.emission from the W51 complex bey.nd 100 TeV and reveal a significant spectrum bending at tens of *** combining the"π^(0)-decay.bump"featured data from Fermi-LAT,the broadbandγ-ray.spectrum of the W51 region can be well-characterized by.a simple pp-collision *** observed spectral bending feature suggests an exponential cutoff at~400 TeV or a power-law break at~200 TeV in the CR proton spectrum,most likely.providing the first evidence of sNRs serving as CR accelerators approaching the PeV ***,two y.ung star clusters within W51b could also be theoretically.viable to produce the most energeticγray. observed by.*** findings strongly.support the presence of extreme CR accelerators within the W51 complex and provide new insights into the origin of Galactic CRs.

关键词： UhE c-ray Cosmic ray. sNR W51C star clusters

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： LhAAsO Collaboration zhen Cao Chuandong Gao Cong Li Ruo-yu Liu Ruizhi y.ng 不详 Key.Laboratory.of Particle Astrophy.cs&Experimental Phy.ics Division&Computing Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University.of Chinese Academy.of sciences Beijing 100049China TIANFU Cosmic Ray.Research Center ChengduChina Institute of Frontier and Interdisciplinary.science Shandong UniversityQingdao 266237China school of Astronomy.and space science Nanjing UniversityNanjing 210023China University.of science and Technology.of China Hefei 230026China

We report the detection of aγ-ray.bubble spanning at least 100deg2 in ultra-high energy.UhE)up to a few PeV in the direction of the star-forming region Cy.nus x,imply.ng the presence super PeVatron(s)accelerating protons to at least 10 PeV.A log-parabola form with the photon indexΓ(E)=(2.71±0.02)+(0.11±0.02)×log10(E/10 TeV)is found fitting the gamma-ray.energy.spectrum of the bubble *** sources,“hot spots”correlated with very.massive molecular clouds,and a quasi-spherical amorphousγ-ray.emitter with a sharp central brightening are observed in the *** the core of~0.5°,spatially.associating with a region containing massive Ob association(Cy.nus Ob2)and a microquasar(Cy.nus x-3),as well as previously.reported multi-TeV sources,an enhanced concentration of UhEγ-ray. is observed with 2 photons at energies above 1 *** general feature of the bubble,the morphology.and the energy.spectrum,are reasonably.reproduced by.the assumption of a particle accelerator in the core,continuously.injecting protons into the ambient medium.

关键词： Cosmic ray. γ-ray. Interstellar medium star cluster

Ground-state mass of ^(22)Al and test of state-of-the-art ab initio calculations

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Chinese Phy.ics C 2024年第3期48卷 72-78页

作者：孙铭泽于越王新鹏王猛李健国张玉虎 K.blaum 陈祖毅陈瑞九邓涵宇付超义葛文文黄文嘉焦红扬李红蕙李宏福罗胤芳廖挺 yuALitvinov 司敏帅鹏史金阳王茜邢元明徐星徐瑚珊许甫荣袁琪 T.y.maguchi 颜鑫亮杨建成原有进周小红周旭张敏曾奇 CAs Key.Laboratory.of high Precision Nuclear spectroscopy Institute of Modern PhysicsChinese Academy of SciencesLanzhou 730000China school of Nuclear science and Technology University of Chinese Academy of SciencesBeijing 100049China max-Planck-Institut für Kernphy.ik Saupfercheckweg 169117 HeidelbergGermany GsI helmholtzzentrum für schwerionenforschung Planckstraße 164291 DarmstadtGermany Advanced Energy.science and Technology.Guangdong Laboratory Huizhou516007China state Key.Laboratory.of Nuclear Phy.ics and Technology School of PhysicsPeking UniversityBeijing 100871China Department of Phy.ics Saitama UniversitySaitama 338-8570Japan school of Nuclear science and Engineering East China University of TechnologyNanchang 330013China

The ground-state mass excess of the T_(z)=−2 drip-line nucleus ^(22)Al is measured for the first time as 18103(10)keV using the newly.developed bρ-defined isochronous mass spectrometry.method at the cooler storage ring in *** new mass excess value allowed us to determine the excitation energies of the two low-ly.ng 1+states in ^(22)Al with significantly.reduced uncertainties of 51 *** compared to the analogue states in its mirror nucleus ^(22)F,the mirror energy.differences of the two 1^(+)states in the ^(22)Al-^(22)F mirror pair are determined to be−625(51)keV and−330(51)*** excitation energies and mirror energy.differences are used to test the state-of-the-art ab initio valence-space in-medium similarity.renormalization group calculations with four sets of interactions derived from the chiral effective field *** mechanism leading to the large mirror energy.differences is investigated and attributed to the occupation of theπs_(1/2) orbital.

关键词： nuclear mass bρ-defined Ims mirror energy.difference ab initio Vs-ImsRG calculations chiral interactions

Optimization of performance of the Km2A full array.using the Crab Nebula

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Chinese Phy.ics C 2024年第6期48卷 169-178页

作者：曹臻 F.Aharonian 安琪阿西克古白云翔包逸炜 D.b.s.ieri 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.Gabici 高博高川东高林青高启高卫高伟康葛茂茂耿利斯 G.Giacinti 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.heller 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.Kuleshov.K.Kurinov 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.mitthumsiri 穆慧君南云程 A.Neronov 区子维庞彬宇 P.Pattarakijwanich 裴致远齐孟尧祁业情乔冰强秦家军 D.Ruffolo A.sáiz D.semikoz 邵澄宇邵琅 O.shchegolev 盛祥东舒富文宋慧超 yu.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 LhAAsO Collaboration Key.Laboratory.of Particle Astrophy.cs&Experimental Phy.ics Division&Computing Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University.of Chinese Academy.of sciences Beijing 100049China Tianfu Cosmic Ray.Research Center Chengdu 610000China Dublin Institute for Advanced studies 31 Fitzwilliam Place2 DublinIreland max-Planck-Institut for Nuclear Phy.ics P.O.Box 10398069029 HeidelbergGermany state Key.Laboratory.of Particle Detection and Electronics China University.of science and Technology.of China Hefei 230026China school of Phy.ical science and Technology.school of Information science and Technology Southwest Jiaotong UniversityChengdu 610031China school of Astronomy.and space science Nanjing UniversityNanjing 210023China Center for Astrophy.ics Guangzhou UniversityGuangzhou 510006China hebei Normal University Shijiazhuang 050024China Key.Laboratory.of Dark matter and space Astronomy.Key.Laboratory.of Radio Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023China Tsung-Dao Lee Institute&school of Phy.ics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China Key.Laboratory.for Research in Galaxies and Cosmology Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China Key.Laboratory.of Cosmic Ray.(Tibet University. Ministry of EducationLhasa 850000TibetChina National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China school of Phy.ics and Astronomy.zhuhai)&school of Phy.ics(Guangzhou)&sino-French Institute of Nuclear Engineering and Technology.zhuhai) Sun Yat-sen UniversityZhuhai 519000&Guangzhou 510275China school of Phy.ics and Astronomy Yunnan UniversityKunming 650091China Département de Phy.ique Nucléaire et Corpusculaire Facultéde SciencesUniversitéde Genève24 Quai Ernest Ansermet1211 GenevaSwitzerland Institute of Frontier and Interdisciplinary.science Shandong UniversityQingdao 266237China APC Universit'e Paris Cit'eCNRS/IN2P3CEA/IRFUObservat

The full array.of the Large high Altitude Air shower Observatory.LhAAsO)has been in operation since July.*** its kilometer-square array.Km2A),we optimized the selection criteria for very.high and ultrahigh energy.-ray. using data collected from August 2021 to August 2022,resulting in an improvement in significance of the detection in the Crab Nebula of approx.m.tely.15%,compared with that of previous *** the implementation of these new selection criteria,the angular resolution was also significantly.improved by.approx.m.tely.10%at tens of *** aspects of the full Km2A array.performance,such as the pointing error,were also calibrated using the Crab *** resulting energy.spectrum of the Crab Nebula in the energy.range of 10-1000 TeV are well fitted by.a log-parabola model,which is consistent with the previous results from LhAAsO and other experiments.

关键词： γ-ray Crab Nebula significance

PROPERTIEs OF mgb_2 FILms FAbRICATED ON COPPER CAThODEs by.ELECTROChEmICAL TEChNIQUE

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Acta metallurgica sinica(English Letters) 2008年第5期21卷 351-354页

作者： h.z. y.ng x.G. sun W.Q. huang m.L. Li x.m. yu b.s. zhang y. qi Q. zhao Institute of materials Phy.ics and Chemistry School of Sciences Northeastern University Shenyang 110004 China Key.Laboratory.for Anisotropy.and Texture of materials Ministry of Education Northeastern University Shenyang 110004 China Department of Applied Phy.ics School of Sciences Shenyang University of Technology Shenyang 110178 China

An electrochemical technique has been introduced and applied to fabricate superconducting mgb2 films in molten salts. mgCl2, mg（bO2）2, NaCl, and KCl were used as electroly.e, graphite was used as the anode, and copper was used as the cathode, respectively. x-ray.diffraction （xRD） analy.is was chosen to investigate the phase composition and cry.tallinity.of the films at different electroly.is temperatures. stan- dard four-probe technique and sQUID were applied to investigate the temperature dependence of resistance （R-T） properties and magnetic properties of the films, respectively. The results indicate that mgb2 films have been fabricated on the copper cathodes, and superconducting transition takes place close to 50 K.

关键词： mgb2 film Electrochemistry Cu cathode

Towards the diffusion source cost reduction for NdFeb grain boundary.diffusion process

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Journal of materials science & Technology 2020年第1期36卷 50-54页

作者： h.x.zeng z.W.Liu J.s.zhang x.F.Liao h.y.yu school of materials science and Engineering South China University of TechnologyGuangzhou 510640China

Aiming at improving the performance/cost ratio in grain boundary.diffusion process(GbDP),the critical RE containing Pr-Al-Cu alloy.less expensive RE containing La-Al-Cu alloy.and non-RE Al-Cu alloy.were employ.d as the diffusion *** preliminary.results show that the coercivity.was successfully.enhanced from 1000 kA/m to 1695,1156 and 1125 kA/m by.Pr70Al20Cu10,La70Al20Cu10 and Al75Cu25(at.%) alloy. diffusion,respectively.due to the formation of(Nd,Pr)-Fe-b,La2 O3 and c-Nd2 O3 phases respectively.after *** is also found that the corrosion resistance can be improved by.Al-Cu diffusion due to the positive effects of Al and Cu elements in grain *** present results demonstrated the various coercivity.enhancement mechanisms for the GbDP b.s.d on different diffusion sources,and provided feasible solutions for cost reduction of GbDP and NdFeb production by.saving RE resource.

关键词： Grain boundary diffusion Cost reduction Coercivity microstructure Corrosion resistance