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Observation of the Y(4230)and a new structure in e^(+)e^(-)→K^(+)K^(-)J/Ψ

Chinese Physics C 2022年第11期46卷 7-21页

作者： M.Ablikim M.N.Achasov P.Adlarson M.Albrecht R.Aliberti A.Amoroso M.R.An Q.An X.H.Bai Y.Bai O.Bakina R.Baldini Ferroli I.Balossino Y.Ban V.Batozskaya D.Becker K.Begzsuren N.Berger M.Bertani D.Bettoni F.Bianchi J.Bloms A.Bortone I.Boyko 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.Chelkov C.Chen G.Chen H.S.Chen M.L.Chen S.J.Chen T.Chen X.R.Chen X.T.Chen Y.B.Chen Z.J.Chen W.S.Cheng X.Chu G.Cibinetto F.Cossio J.J.Cui H.L.Dai J.P.Dai A.Dbeyssi R.Ede Boer D.Dedovich Z.Y.Deng A.Denig I.Denysenko M.Destefanis F.De Mori Y.Ding J.Dong L.Y.Dong M.Y.Dong X.Dong S.X.Du P.Egorov Y.L.Fan J.Fang S.S.Fang W.X.Fang Y.Fang R.Farinelli L.Fava F.Feldbauer G.Felici C.Q.feng J.H.feng K Fischer M.Fritsch C.Fritzsch C.D.Fu H.Gao Y.N.Gao Yang Gao S.Garbolino I.Garzia P.T.Ge C.Geng E.M.Gersabeck A Gilman K.Goetzen L.Gong W.X.Gong W.Gradl M.Greco M.H.Gu C.Y Guan A.Q.guo L.B.guo R.P.guo Y.P.guo A.Guskov T.T.Han W.Y.Han X.Q.Hao F.A.Harris K.K.He K.L.He F.H.Heinsius C.H.Heinz Y.K.Heng C.Herold M.Himmelreich T.Holtmann G.Y.Hou Y.R.Hou Z.L.Hou H.M.Hu J.F.Hu T.Hu Y.Hu G.S.Huang K.X.Huang L.Q.Huang L.Q.Huang X.T.Huang Y.P.Huang Z.Huang T.Hussain N Husken W.Imoehl M.Irshad J.Jackson S.Jaeger S.Janchiv Q.Ji Q.P.Ji X.B.Ji X.L.Ji Y.Y.Ji Z.K.Jia H.B.Jiang S.S.Jiang X.S.Jiang Y.Jiang J.B.Jiao Z.Jiao S.Jin Y.Jin M.Q.Jing T.Johansson N.Kalantar-Nayestanaki X.S.Kang R.Kappert M.Kavatsyuk B.C.ke I.K.keshk A.Khoukaz P.Kiese R.Kiuchi R.Kliemt L.Koch O.B.Kolcu B.Kopf M.Kuemmel M.Kuessner A.Kupsc W.Kuhn J.J.Lane J.S.Lange P.Larin A.Lavania L.Lavezzi 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.li H.B.li H.J.li H.N.li J.Q.li J.S.li J.W.li ke li L.J li L.K.li Lei li M.H.li P.R.li S.X.li S.Y.li T.li W.D.li W.G.li X.H.li X.L.li Xiaoyu li Z.Y.li H.liang H.liang H.liang Y.F.liang Y.T.liang G.R.liao L.Z.liao J.libby A.limphirat C.X.lin D.X.lin T.lin B.J.liu C.X.liu D.liu F.H.liu Fang liu feng liu G.M.liu H.liu H.M.liu Huanhuan liu Huihui liu J.B.liu J.L.liu J.Y.liu K.liu K.Y.L Institute of High Energy Physics Beijing 100049China Beihang University Beijing 100191China Beijing Institute of Petrochemical Technology Beijing 102617China Bochum Ruhr-University D-44780 BochumGermany Carnegie Mellon University PittsburghPennsylvania 15213USA Central China Normal University Wuhan 430079China China Center of Advanced Science and Technology Beijing 100190China COMSATS University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200433China G.I.Budker Institute of Nuclear Physics SB RAS(BINP) Novosibirsk 630090Russia GSI Helmholtzcentre for Heavy Ion Research GmbH D-64291 DarmstadtGermany Guangxi Normal University Guilin 541004China Hangzhou Normal University Hangzhou 310036China Helmholtz Institute Mainz Staudinger Weg 18D-55099 MainzGermany Henan Normal University Xinxiang 453007China 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 Institute of Modern Physics Lanzhou 730000China Institute of Physics and Technology Peace Ave.54BUlaanbaatar 13330Mongolia Jilin University Changchun 130012China Johannes Gutenberg University of Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Joint Institute for Nuclear Research 141980 DubnaMoscow regionRussia Justus-liebig-Universitaet Giessen II.Physikalisches InstitutHeinrich-Buff-Ring 16

The cross sections of e^(+)e^(-)→K^(+)K^(-)J/Ψat center-of-mass energies from 4.127 to 4.600 GeV are measured based on 15.6 fb-1data collected with the BESⅢ detector operating at the BEPCⅡ storage *** resonant structures are observed in the line shape of the cross *** mass and width of the first structure are measured to be(4225.3±2.3±21.5)MeV and(72.9±6.1±30.8)MeV,*** are consistent with those of the established Y(4230).The second structure is observed for the first time with a statistical significance greater than 8σ,denoted as Y(4500).Its mass and width are determined to be(4484.7±13.3±24.1)MeV and(111.1±30.1±15.2)MeV,*** first presented uncertainties are statistical and the second ones are *** product of the electronic partial width with the decay branching fractionΓ(Y(4230)→e^(+)e^(−))B(Y(4230)→K^(+)K^(−)J/Ψ)is reported.

关键词： Y states charmonium-like states BESⅢ

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Measurement of integrated luminosities at BESⅢ for data samples at center-of-mass energies between 4.0 and 4.6 GeV

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Chinese Physics C 2022年第11期46卷 53-63页

作者： M.Ablikim M.N.Achasov P.Adlarson S.Ahmed M.Albrecht R.Aliberti A.Amoroso M.R.An Q.An X.H.Bai Y.Bai O.Bakina R.Baldini Ferroli I.Balossino Y.Ban V.Batozskaya D.Becker K.Begzsuren N.Berger M.Bertani D.Bettoni F.Bianchi J.Bloms A.Bortone I.Boyko 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.Chelkov C.Chen G.Chen H.S.Chen M.L.Chen S.J.Chen T.Chen X.R.Chen X.T.Chen Y.B.Chen Z.J.Chen W.S.Cheng X.Chu G.Cibinetto F.Cossio J.J.Cui H.L.Dai J.P.Dai A.Dbeyssi R.Ede Boer D.Dedovich Z.Y.Deng A.Denig I.Denysenko M.Destefanis F.De Mori Y.Ding J.Dong L.Y.Dong M.Y.Dong X.Dong S.X.Du P.Egorov Y.L.Fan J.Fang S.S.Fang W.X.Fang Y.Fang R.Farinelli L.Fava F.Feldbauer G.Felici C.Q.feng J.H.feng K Fischer M.Fritsch C.Fritzsch C.D.Fu H.Gao Y.N.Gao Yang Gao S.Garbolino I.Garzia P.T.Ge C.Geng E.M.Gersabeck A Gilman K.Goetzen L.Gong W.X.Gong W.Gradl M.Greco M.H.Gu C.Y Guan A.Q.guo L.B.guo R.P.guo Y.P.guo A.Guskov T.T.Han W.Y.Han X.Q.Hao F.A.Harris K.K.He K.L.He F.H.Heinsius C.H.Heinz Y.K.Heng C.Herold M.Himmelreich T.Holtmann G.Y.Hou Y.R.Hou Z.L.Hou H.M.Hu J.F.Hu T.Hu Y.Hu G.S.Huang K.X.Huang L.Q.Huang L.Q.Huang X.T.Huang Y.P.Huang Z.Huang T.Hussain N Husken W.Imoehl M.Irshad J.Jackson S.Jaeger S.Janchiv Q.Ji Q.P.Ji X.B.Ji X.L.Ji Y.Y.Ji Z.K.Jia H.B.Jiang S.S.Jiang X.S.Jiang Y.Jiang J.B.Jiao Z.Jiao S.Jin Y.Jin M.Q.Jing T.Johansson N.Kalantar-Nayestanaki X.S.Kang R.Kappert M.Kavatsyuk B.C.ke I.K.keshk A.Khoukaz P.Kiese R.Kiuchi R.Kliemt L.Koch O.B.Kolcu B.Kopf M.Kuemmel M.Kuessner A.Kupsc W.Kuhn J.J.Lane J.S.Lange P.Larin A.Lavania L.Lavezzi 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.li H.B.li H.J.li H.N.li J.Q.li J.S.li J.W.li ke li L.J li L.K.li Lei li M.H.li P.R.li S.X.li S.Y.li T.li W.D.li W.G.li X.H.li X.L.li Xiaoyu li Z.Y.li H.liang H.liang H.liang Y.F.liang Y.T.liang G.R.liao L.Z.liao J.libby A.limphirat C.X.lin D.X.lin T.lin B.J.liu C.X.liu D.liu F.H.liu Fang liu feng liu G.M.liu H.liu H.M.liu Huanhuan liu Huihui liu J.B.liu J.L.liu J.Y.liu K.L Institute of High Energy Physics Beijing 100049China Beihang University Beijing 100191China Beijing Institute of Petrochemical Technology Beijing 102617China Bochum Ruhr-University D-44780 BochumGermany Carnegie Mellon University PittsburghPennsylvania 15213USA Central China Normal University Wuhan 430079China China Center of Advanced Science and Technology Beijing 100190China COMSATS University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200433China G.I.Budker Institute of Nuclear Physics SB RAS(BINP) Novosibirsk 630090Russia GSI Helmholtzcentre for Heavy Ion Research GmbH D-64291 DarmstadtGermany Guangxi Normal University Guilin 541004China Hangzhou Normal University Hangzhou 310036China Helmholtz Institute Mainz Staudinger Weg 18D-55099 MainzGermany Henan Normal University Xinxiang 453007China 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 Institute of Modern Physics Lanzhou 730000China Institute of Physics and Technology Peace Ave.54BUlaanbaatar 13330Mongolia Jilin University Changchun 130012China Johannes Gutenberg University of Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Joint Institute for Nuclear Research 141980 DubnaMoscow regionRussia Justus-liebig-Universitaet Giessen II.Physikalisches InstitutHeinrich-Buff-Ring 16

The integrated luminosities of data samples collected in the BESⅢ experiment in 2016-2017 at centerof-mass energies between 4.19 and 4.28 GeV are measured with a precision better than 1% by analyzing large-angle Bhabha scattering *** integrated luminosities of old datasets collected in 2010-2014 are updated by considering corrections related to detector performance,offsetting the effect of newly discovered readout errors in the electromagnetic calorimeter,which can haphazardly occur.

关键词： integrated luminosity e^(+)e^(-)annihilation Bhabha scattering

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Luminosities and energies of e^(+)e^(−) collision data taken between √s=4.61 GeV and 4.95 GeV at BESⅢ

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Chinese Physics C 2022年第11期46卷 64-75页

From December 2019 to June 2021,the BESⅢ experiment collected approximately 5.85 fb^(−1) of data at center-of-mass energies between 4.61 and 4.95 *** is the highest collision energy BEPCⅡ has reached to *** accumulated e^(+)e^(−) annihilation data samples are useful for studying charmonium(-like)states and charmed-hadron *** adopting a novel method of analyzing the production of A_(c)^(+)A_(c)^(-) pairs in e^(+)e^(−) annihilation,the center-of-mass energies are measured with a precision of 0.6 *** luminosities are measured with a precision of better than 1% by analyzing the events of large-angle Bhabha *** measurements provide important inputs to analyses based on these data samples.

关键词： luminosity center-of-mass energy BESⅢdetector

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2018 Chinese Guidelines for Prevention and Treatment of Hypertension——A report of the Revision Committee of Chinese Guidelines for Prevention and Treatment of Hypertension

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Journal of Geriatric Cardiology 2019年第3期16卷 182-241页

作者： Joint Committee for Guideline Revision Chinese Hypertension League Chinese Society of Cardiology Hypertension Committee of the Chinese Medical Doctor Association Hypertension Branch of the China Association for the Promotion of International Exchanges of Health Care Hypertension Branch of the Chinese Geriatrics Society li–Sheng liU Chinese Hypertension LeagueChinese Society of CardiologyHypertension Committee of the Chinese Medical Doctor AssociationHypertension Branch of the China Association for the Promotion of International Exchanges of Health CareHypertension Branch of the Chinese Geriatrics SocietyRevision Committee MembersChair: li-Sheng liU[*]Deputy Chairs: Zhao-Su wu Ji-Guang WANG Wen WANGMembers (Listed in alphabetic order by last name in Chinese Pinyin)Yu-Jing BAO Jun CAI Lu-Yuan CHEN Wei-Wei CHEN Shao-Li CHU Ying-Qing FENG Ping-Jin GAO Ting-Rui GUAN Zi-Hong GUO Qi HUA Jun HUANG Yong HUO Wei-Ping JIA Xiong-Jing JIANG Yi-Nong JIANG Li LI Li-Huan LI Nan-Fang LI Wei LI Xiao-Ying LI Xue-Wang LI Yan LI Yong LI Jin-Xiu LIN Li-Sheng LIU Xin-Zheng LU Ji-Xiang MA Jie MI Jian-Jun MU Chang-Yu PAN Gang SUN Ning-Ling SUN Ying-Xian SUN Jun TAO Hao WANG Ji-Guang WANG Wen WANG Wen-Zhi WANG Yong-Jun WANG Yu WANG Zeng-Wu WANG Hai-Ying WU Zhao-Su WU Liang-Di XIE Zhang-Rong XU Xiao-Wei YAN Yan-Min YANG Chong-Hua YAO Zheng-Pei ZENG Jian ZHANG Wei-Zhong ZHANG Xin-Hua ZHANG Xin-Jun ZHANG Yu-Qing ZHANG Ding-Liang ZHU Jun ZHU Zhi-Ming ZHUScientific Committee MembersXiang-Mei CHEN Hong CHEN Jun-Shi CHEN Xiao-Ping CHEN Yun-Dai CHEN Zhao-Qiang CUI Xue-Ping DU Li FAN Run-Lin GAO Jun-Bo GE Luo-Bu GE-SANG Dong-Feng GU Jing-Xuan GUO Yi-Fang GUO Qing-Hua HAN Ya-Ling HAN Zhao-Guang HONG Da-Yi HU Jian-Ping LI Guang-Wei LI Guang-Ping LI Xin-Li LI Yu-Ming LI Xiao-Feng LIANG Yi-Shi LI Yu-Hua LIAO Shu-Guang LIN Mei-Lin LIU Jing LIU Wei LIU Fang-Hong LU Shu-Ping MA Qian-Hui SHANG Yi-Pu CHEN Hai-Qin Tang Xin-Hua TANG Gang TIAN Ke-An WANG Xing-Yu WANG Dao-Wen WANG Shou-Ling WU Cheng-Bin XU Shou-Chun XU Xin-Juan XU Xin-Hua YIN Bo YU Guo-Ying YU Jing YU Wei YU Meng-Sun YU Hong YUAN Ru-Yu YUAN Chun-Yu ZENG Zhe-Chun ZENG Lin ZHANG Hui-Min ZHANG Dong ZHAO Luo-Sha ZHAO Lian-You ZHAO Xiao-Fang ZHOU Man-Lu ZHU*Correspondence to:moc.621@lhcsll (LIU LS)

Table of Contents Preamble 1 Prevalence of hypertension in Chinese population 1.1 Prevalence,incidence and epidemic trend of hypertension in Chinese population 1.2 Awareness,treatment and control of Hypertension in China 1.3 Important risk factors for hypertension in Chinese population 2 Hypertension and cardiovascular risk 2.1 Relationship between blood pressure and cardiovascular risk 2.2 Cardiovascular risk characteristics of hypertension population in China 3 Diagnostic evaluation 3.1 Medical history 3.2 Physical examination 3.3 Laboratory examinations 3.4 Genetic analysis 3.5 BP measurement 3.6 Evaluation of target organ damage.

关键词： 2018 Chinese Guidelines Contents Preamble Prevention and Treatment

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Number of J/ψ events at BESIII

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Chinese Physics C 2022年第7期46卷 74-84页

作者： M.Ablikim M.N.Achasov P.Adlarson S.Ahmed M.Albrecht R.Aliberti A.Amoroso M.R.An Q.An X.H.Bai Y.Bai O.Bakina R.Baldini Ferroli I.Balossino Y.Ban K.Begzsuren N.Berger M.Bertani D.Bettoni F.Bianchi J.Bloms A.Bortone I.Boyko R.A.Briere H.Cai X.Cai A.Calcaterra G.F.Cao N.Cao S.A.Cetin J.F.Chang W.L.Chang G.Chelkov G.Chen H.S.Chen M.L.Chen S.J.Chen X.R.Chen Y.B.Chen Z.J.Chen W.S.Cheng G.Cibinetto F.Cossio J.J.Cui X.F.Cu H.L.Dai J.P.Dai X.C.Dai A.Dbeyssi R.E.de Boer D.Dedovich Z.Y.Deng A.Denig I.Denysenko M.Destefanis F.De Mori Y.Ding C.Dong J.Dong L.Y.Dong M.Y.Dong X.Dong S.X.Du P.Egorov Y.L.Fan J.Fang S.S.Fang Y.Fang R.Farinelli L.Fava F.Feldbauer G.Felici C.Q.feng J.H.feng M.Fritsch C.D.Fu Y.Gao Y.Gao I.Garzia P.T.Ge C.Geng E.M.Gersabeck A Gilman K.Goetzen L.Gong W.X.Gong W.Gradl M.Greco L.M.Gu M.H.Gu C..Y.Guan A.Q.guo A.Q.guo L.B.guo R.P.guo Y.P.guo A.Guskov T.T.Han W.Y.Han X.Q.Hao F.A.Harris K.K.He K.L.He F.H.Heinsius C.H.Heinz Y.K.Heng C.Herold M.Himmelreich T.Holtmann G.Y.Hou Y.R.Hou Z.L.Hou H.M.Hu J.F.Hu T.Hu Y.Hu G.S.Huang L.Q.Huang X.T.Huang Y.P.Huang Z.Huang T.Hussain N Husken W.Ikegami Andersson W.Imoehl M.Irshad S.Jaeger S.Janchiv Q.Ji Q.P.Ji X.B.Ji X.L.Ji Y.Y.Ji H.B.Jiang X.S.Jiang J.B.Jiao Z.Jiao S.Jin Y.Jin M.Q.Jing T.Johansson N.Kalantar-Nayestanaki X.S.Kang R.Kappert M.Kavatsyuk B.C.ke I.K.keshk A.Khoukaz P.Kiese R.Kiuchi R.Kliemt L.Koch O.B.Kolcu B.Kopf M.Kuemmel M.Kuessner A.Kupsc M.G.Kurth W.Kuhn J.J.Lane J.S.Lange P.Larin A.Lavania L.Lavezzi Z.H.Lei H.Leithoff M.Lellmann T.Lenz C.li C.H.li Cheng li D.M.li F.li G.li H.li H.li H.B.li H.J.li H.N.li J.L.li J.Q.li J.S.li ke li L.K.li Lei li P.R.li S.Y.li W.D.li W.G.li X.H.li X.L.li Xiaoyu li Z.Y.li H.liang H.liang H.liang Y.F.liang Y.T.liang G.R.liao L.Z.liao J.libby A.limphirat C.X.lin D.X.lin T.lin B.J.liu C.X.liu D.liu F.H.liu Fang liu feng liu G.M.liu H.M.liu Huanhuan liu Huihui liu J.B.liu J.L.liu J.Y.liu K.liu K.Y.liu ke liu L.liu M.H.liu P.L.liu Q.liu Q.liu S.B.liu T.liu T.liu W.M.liu X.liu Y.liu Y.B.liu Z.A.liu Z.Q.liu X.C.Lou F.X.Lu H.J.Lu J.D. Institute of High Energy Physics Beijing 100049China Beihang University Beijing 100191China Beijing Institute of Petrochemical Technology Beijing 102617China Bochum Ruhr-University D-44780 BochumGermany Camnegie Mellon University PittsburghPennsylvania 15213USA Central China Normal University Wuhan 430079China China Center of Advanced Science and Technology Beijing 100190China COMSATS University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200443China G.I.Budker Institute of Nuclear Physies SBRAS(BINP) Novosibirsk 630090Russia GSI Helmholtzcentre for Heavy Ion Research GmbH D-64291 DarmstadtGermany Guangxi Normal University Guilin 541004China Hangzhou Normal University Hangzhou 310036China Helmholtz Institute Mainz Staudinger Weg 18D-55099 MainzGermany Henan Normal University Xinxiang 453007China 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 I-00044FrascatiItaly INFN Sezione di Perugia I-06100PerugiaItaly University of Perugia I-06100PerugiaItaly University of Ferrara I-44122FerraraItaly Institute of Modern Physics Lanzhou 730000China Institute of Physies and Technology Peace Ave 54BUlaanbaatar 13330Mongolia Jilin University Changchun 130012China Johannes Gutenberg University of Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Joint Institute for Nuclear Research 141980 DubnaMoscow regionRussia Justus-liebig-Universitaet Giessen Ⅱ.Physikaliches InstitutHeinricH-Buff-Ring 16D-35392 GiessenGermany Lanzhou University Lnzhou 730000China liaoning Normal University Dalian 116029China liaoning University Shenyang 110036China Nanjing Normal University Nanjing 210023China Nanjing Univ

Using inclusive decays of J/ψ aprecise determination of the number of J/ψ events collected with the BESIII detector was *** the two data sets taken in 2009 and 2012,the numbers of J/ψ events were recalculated to be(224.0±1.3)×10^(6) and(1088.5±4.4)×10^(6),respectively;these numbers are in good agreement with the previous measurements. For the J/ψ sample taken in 2017-2019,the number of events was determined to be(8774.0±39.4)×10^(6).The total number of J/ψ events collected with the BESIII detector was determined to be(10087±44)×10^(6),where the uncertainty is dominated by systematic effects,and the statistical uncertainty is negligible.

关键词： number of J/ψevents BESIII detector inclusive J/ψdecays

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新型冠状病毒感染者脊柱外科急诊手术的围手术期管理专家共识

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脊柱外科杂志 2020年第6期18卷 361-368页

作者：华文彬郜勇李危石仉建国朱泽章王冰李方财何达马真胜魏欣杨磊任东平张雪松李利吴继功徐宝山宁广智武汉杨群戈朝晖康学文夏磊高延征刘新宇刘浩初同伟熊伟夏平陈雄生白玉树殷国勇王向阳刘向阳杨军林万勇董健文丁文元陶惠人王迎松吴星火张宇坤郑东潘海涛吴永超曾宪林李锋邵增务杨述华邱海波王征杨操华中科技大学同济医学院附属协和医院骨科武汉430022 北京大学第三医院骨科北京100191 北京协和医院骨科北京100032 南京大学医学院附属鼓楼医院骨科南京210008 中南大学湘雅二医院骨科长沙410011 浙江大学医学院附属第二医院骨科杭州310056 北京积水潭医院骨科北京100035 空军军医大学西京医院骨科西安710032 华中科技大学同济医学院附属协和医院麻醉科武汉430022 华中科技大学同济医学院附属协和医院手术室武汉430022 中国人民解放军总医院骨科北京100853 中国人民解放军战略支援部队特色医学中心骨科北京100010 天津医院骨科天津300211 天津医科大学总医院骨科天津300052 吉林大学中日联谊医院骨科长春130033 大连医科大学附属第一医院骨科大连116011 宁夏医科大学总医院骨科银川750004 兰州大学第二医院骨科兰州730000 郑州大学第一附属医院骨科郑州450052 河南省人民医院骨科郑州450003 山东大学齐鲁医院骨科济南250012 四川大学华西医院骨科成都610041 陆军军医大学新桥医院骨科重庆400037 华中科技大学同济医学院附属同济医院骨科武汉430030 武汉市第一医院骨科武汉430022 海军军医大学附属长征医院骨科上海200003 海军军医大学附属长海医院骨科上海200433 南京医科大学第一附属医院骨科南京210029 温州医科大学附属第二医院骨科温州325000 湖南省人民医院骨科长沙410002 上海交通大学医学院附属新华医院骨科上海200092 中山大学附属第一医院骨科广州510080 中山大学附属第三医院骨科广州510630 河北医科大学第三医院骨科石家庄050091 深圳大学总医院骨科深圳518055 昆明医科大学附属第二医院骨科昆明650031 东南大学附属中大医院重症医学科南京210009

自2019年12月以来,已有200余个国家和地区相继报道了新型冠状病毒感染病例,世界卫生组织(WHO)于2020年3月12日宣布新型冠状病毒全球大流行,截至6月18日,全球已累计有824万余人感染,44万余人死亡,对全世界医疗、政治和经济领域影响巨大[1... 详细信息

自2019年12月以来,已有200余个国家和地区相继报道了新型冠状病毒感染病例,世界卫生组织(WHO)于2020年3月12日宣布新型冠状病毒全球大流行,截至6月18日,全球已累计有824万余人感染,44万余人死亡,对全世界医疗、政治和经济领域影响巨大[1-2]。WHO将其命名为“2019冠状病毒感染性疾病”(COVID-19),病原体被命名为重症急性呼吸综合征冠状病毒2(SARS-CoV-2)[3-6]。按照《中华人民共和国传染病防治法》,COVID-19被纳入乙类传染病,采取甲类传染病的预防控制措施[7]。

关键词：脊柱疾病冠状病毒感染肺炎,病毒性急诊处理外科手术

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全国多中心使用糖皮质激素风湿病患者骨质疏松调查

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中华临床免疫和变态反应杂志 2017年第3期11卷 277-284页

作者：张学武姚海红梅轶芳王辉高娟林志国张海宏王言赵彦萍王亮李洋李英楠聂英坤徐亮舒强刘花香李向培厉小梅徐晋刘璘琛王艳艳沈友轩冷晓梅吴庆军王立赵岩丁进李治琴牛敏冯媛陈倩蕴冷南王聪华刘湘源王芳王秀娟张舸刘宏潇周惠琼王丽英赵千子李胜光段婷周明珠赵义黄彦弘路跃武黄桂芬韩峰戚务芳张娜董笑影孙文闻高丽霞王俊祥陈海英顾光李芳姜国平刘涛王晋平陈雁飞王晓云刘斌李法新夏丽萍张榕赵丽娟张冶宇郭韵薛江霞刘冬梅王岩岩戴冰冰刘伟刘畅华冰珠丁从珠顾菲孙怡宁莫凌菲张斌宁旺斌潘静沈凌汛连莉黄文辉林泽英北京大学人民医院风湿免疫科北京100044 哈尔滨医科大学附属第一医院风湿免疫科哈尔滨150001 哈尔滨医科大学附属第二医院风湿免疫科哈尔滨150001 皖南医学院弋矶山医院风湿免疫科安徽芜湖241001 山东大学齐鲁医院风湿免疫科济南250012 安徽省立医院风湿免疫科合肥230001 东南大学附属中大医院风湿免疫科南京210009 江苏省人民医院风湿免疫科南京210029 北京协和医院风湿免疫科北京100730 第四军医大学西京医院风湿免疫科西安710032 北京大学第三医院风湿免疫科北京100191 卫生部北京医院风湿免疫科北京100730 首都医科大学附属世纪坛医院风湿免疫科北京100038 北京市海淀医院风湿免疫科北京100080 中国中医科学院广安门医院风湿免疫科北京100053 中日友好医院风湿免疫科北京100029 解放军总医院第一附属医院风湿免疫科北京100037 首都医科大学附属北京友谊医院风湿免疫科北京100050 首都医科大学附属宣武医院风湿免疫科北京100053 北京积水潭医院风湿免疫科北京100035 首都医科大学附属北京朝阳医院风湿免疫科北京100020 天津市武警医院风湿免疫科天津300019 天津市第一中心医院风湿免疫科天津300192 天津医科大学总医院风湿免疫科天津300052 河北医科大学第二医院风湿免疫科石家庄050000 河北医科大学第三医院风湿免疫科石家庄050051 河北省人民医院风湿免疫科石家庄050057 吉林省人民医院风湿免疫科长春130021 吉林大学第一医院风湿免疫科长春130021 甘肃省人民医院风湿免疫科兰州730000 兰州大学第一医院风湿免疫科兰州730000 兰州大学第二医院风湿免疫科兰州730030 青岛大学医学院附属医院风湿免疫科青岛266003 济南市中心医院风湿免疫科济南250013 中国医科大学附属第一医院风湿免疫科沈阳110001 中国医科大学附属盛京医院风湿免疫科沈阳110004 大连医科大学附属第二医院风湿免疫科大连116027 大连市中心医院风湿免疫科大连116033 南京市鼓楼医院风湿免疫科南京210008 西安交通大学附属第一医院风湿免疫科西安710061 西安市红十字会医院风湿免疫科西安710000 中南大学湘雅医院风湿免疫科长沙410008 武汉市第一医院风湿免疫科武汉430033 华中科技大学同济医学院附属协和医院风湿免疫科武汉430022 安徽医科大学第一附属医院风湿免疫科合肥230022 广州医学院第二附属医院风湿免疫科广州510260

目的了解中国服用糖皮质激素风湿病患者骨质疏松的发病情况和诊疗现状,以期引起对骨质疏松防治的重视。方法 2012年11月1日至2013年1月31日,在全国46家风湿病专科医院对3 136例曾经或正在服用糖皮质激素的风湿病患者进行临床资料、用药... 详细信息

目的了解中国服用糖皮质激素风湿病患者骨质疏松的发病情况和诊疗现状,以期引起对骨质疏松防治的重视。方法 2012年11月1日至2013年1月31日,在全国46家风湿病专科医院对3 136例曾经或正在服用糖皮质激素的风湿病患者进行临床资料、用药情况及骨量调查,了解骨量减少和骨质疏松的发生率。结果 (1)所有调查患者中,主要病种为类风湿关节炎(1 069例)和系统性红斑狼疮(983例)。3 136例患者中90%存在骨量减少或骨质疏松,其中骨质疏松的发生率为41.4%。44.7%的患者在调查当时糖皮质激素用量(等效于泼尼松)>7.5 mg/d,调查当时糖皮质激素剂量≤2.5 mg/d者仍有58.5%存在骨质疏松。(2)随着年龄增加,骨质疏松及骨折的发病率明显增加;小于30岁的患者骨量减少和骨质疏松总发生率为74.4%。(3)女性风湿病患者骨密度异常比例高于男性,平均停经年龄低于正常人群(45.8岁)。(4)抗骨质疏松药物使用不规范,32.7%的患者从未预防性给予抗骨质疏松药物治疗,在T<-2.5的患者中,35.6%未给予预防性抗骨质疏松治疗。主要用药为钙和维生素D,20.9%的患者仅给予钙剂单独治疗,仅有4%使用膦酸盐类药物。结论我国应用糖皮质激素的风湿病患者骨量减少和骨质疏松发生率明显增高,且预防性用药不规范。

关键词：骨质疏松糖皮质激素类

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Search for hidden-charm tetraquark with strangeness in e^(+)e^(−)→K^(+)D_(s)^(∗−) D^(∗0 )+ c.c.

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Chinese Physics C 2023年第3期47卷 1-14页

作者：麦迪娜 M.N.Achasov P.Adlarson M.Albrecht R.Aliberti A.Amoroso 安美儒安琪白羽 O.Bakina R.Baldini Ferroli I.Balossino Y.Ban V.Batozskaya D.Becker K.Begzsuren N.Berger M.Bertani D.Bettoni F.Bianchi E.Bianco J.Bloms A.Bortone I.Boyko R.A.Briere A.Brueggemann 蔡浩蔡啸 A.Calcaterra 曹国富曹宁 S.A.Cetin 常劲帆常万玲车国荣 G.Chelkov 陈琛陈超陈刚陈和生陈玛丽陈申见陈少敏 T.Chen 陈旭荣 X.T.Chen 陈元柏陈卓俊成伟帅 S.K.Choi 初晓 G.Cibinetto F.Cossio 崔佳佳代洪亮代建平 A.Dbeyssi R.E.de Boer D.Dedovich 邓子艳 A.Denig I.Denysenko M.Destefanis F.De Mori 丁勇丁逸董静董燎原董明义董翔杜书先段宗欢 P.Egorov 范玉兰方建房双世方文兴方易 R.Farinelli L.Fava F.Feldbauer G.Felici 封常青冯俊华 K Fischer M.Fritsch C.Fritzsch 傅成栋高涵高原宁高扬 S.Garbolino I.Garzia 葛潘婷葛振武耿聪 E.M.Gersabeck A Gilman K.Goetzen 龚丽龚文煊 W.Gradl M.Greco 谷立民顾旻皓顾运厅关春懿郭爱强郭立波郭如盼郭玉萍 A.Guskov 韩文颖郝喜庆 F.A.Harris 何凯凯何康林 F.H.Heinsius C.H.Heinz 衡月昆 C.Herold 侯国一侯颖锐侯治龙胡海明 J.F.Hu 胡涛胡誉黄光顺黄凯旋黄麟钦黄性涛黄燕萍黄震 T.Hussain N Hüsken W.Imoehl M.Irshad J.Jackson S.Jaeger S.Janchiv E.Jang J.H.Jeong 纪全姬清平季晓斌季筱璐吉钰瑶贾泽坤蒋沛成姜赛赛江晓山 Y.Jiang 焦健斌焦铮金山金毅荆茂强 T.Johansson S.Kabana N.Kalantar-Nayestanaki 康晓琳康晓珅 R.Kappert M.Kavatsyuk 柯百谦 I.K.keshk A.Khoukaz R.Kiuchi R.Kliemt L.Koch O.B.Kolcu B.Kopf M.Kuemmel M.Kuessner A.Kupsc W.Kühn J.J.Lane J.S.Lange P.Larin A.Lavania L.Lavezzi 雷天天雷祚弘 H.Leithoff M.Lellmann T.Lenz 李聪李翠李春花李澄李德民李飞李刚李慧李贺李海波李惠静 H.N.li J.Q.li 李静舒李井文李科 L.J li 李龙科李蕾李明浩李培荣李素娴栗帅迎李腾李卫东李卫国李旭红李晓玲李晓宇李彦谷李振轩李紫源梁畅梁浩梁昊梁勇飞梁羽铁廖广睿廖龙洲 J.libby A.limphirat 林创新林德旭 T.lin 刘北江刘成刘春秀 D.liu 刘福虎刘芳刘峰 G.M.liu H.liu 刘宏邦刘怀民刘欢欢刘汇慧刘建北刘佳俊刘晶译刘凯刘魁勇刘珂刘亮刘露刘美宏刘佩莲刘倩刘树彬刘桐刘维克刘卫民刘翔刘英刘玉斌刘振安刘智青娄辛丑卢飞翔吕海江吕军光陆小玲卢宇卢云鹏卢泽辉罗成林罗民兴罗涛罗小兰吕晓睿吕翌丰马凤才马海龙马连良马明明马秋梅马润秋马瑞廷马骁妍马尧 F.E.Maas M.Maggiora S.Maldaner S.Malde Q.A.Malik A.Mangoni 冒亚军毛泽普 S.Marcello 孟召霞 J.G.Messchendorp G.Mezzadri H.Miao 闵天觉 R.E.Mitchell 莫晓虎 N.Yu.Muchnoi Y.Nefedov F.Nerling I.B.Nikolaev 宁哲 S.Nisar 牛艳 S.L.Olsen 欧阳群 S.Pacetti 潘祥潘越 A.Pathak 裴宇鹏 M.Pelizaeus 彭海平 K.Peters 平加伦平荣刚 S.Plura S.Pogodin V.Prasad 齐法制齐航漆红荣祁鸣齐天钰钱森钱文斌钱圳乔从丰秦佳佳秦丽清覃潇平秦小帅秦中华邱进发屈三强 K Institute of High Energy Physics Beijing 100049China Beihang University Beijing 100191China Beijing Institute of PetrochemicalTechnology Beijing 102617China Bochum Ruhr-University D-44780 BochumGermany Carnegie Mellon University PittsburghPennsylvania15213USA Central China Normal University Wuhan 430079China Central South University Changsha 410083China China Center of AdvancedScience and Technology Beijing 100190China China University of Geosciences Wuhan 430074China COMSATS University Islamabad LahoreCampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200433China G.I.Budker Institute of NuclearPhysics SB RAS(BINP) Novosibirsk 630090Russia GSI Helmholtzcentre for Heavy Ion Research GmbH D-64291 DarmstadtGermany GuangxiNormal 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 NormalUniversity Xinxiang 453007China 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 Institute of Modern Physics Lanzhou 730000People's Republic of China Institute of Physics and Technology Peace Avenue 54BUlaanbaatar 13330Mongolia Instituto de Alta Investigación Universidad de TarapacáCasilla 7DAricaChile Jilin Univers

We report a search for a heavier partner of the recently observed Z_(cs)(3985)^(-) state,denoted as Z_(cs)^('-),in the process e^(+)e^(−)→K^(+)D_(s)^(∗−) D^(∗0 )+ c.c.,based on e^(*)e^(-)collision data collected at the center-of-mass energies of √s=4.661,4.682 and 4.699 GeV with the BESIII *** Z_(cs)^('-) is of interest as it is expected to be a candidate for a hidden-charm and open-strange tetraquark.A partial-reconstruction technique is used to isolate K^(+)recoil-mass spectra,which are probed for a potential contribution from Z_(cs)^('-)→D_(s)^(∗−) D^(∗0 )+ *** find an excess of Z_(cs)^('-)→D_(s)^(*-)-D^(*0)(c.c.)candidates with a significance of 2.1o,after considering systematic uncertainties,at a mass of(4123.5±0.7_(sat)±4.7_(syst.))MeV/c^(2).As the data set is limited in size,the upper limits are evaluated at the 90%confidence level on the product of the Born cross sections(σ^(Borm))and the branching fraction(B)of Z_(cs)^('-)→D_(s)^(*-)-D^(*0),under different assumptions of the Z_(cs)^('-) mass from 4.120 to 4.140 MeV and of the width from 10 to 50 MeV at the three center-of-mass *** upper limits of σ^(Born).B are found to be at the level of O(1)pb at each *** data samples are needed to confirm the Z_(cs)^('-) state and clarify its nature in the coming years.

关键词： electron-positron collision BESIl hadron spectroscopy tetraquark

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Observations of the Cabibbo-Suppressed decays Λ_(c)^(+)→nπ+π^(0),nπ^(+)π^(-)π^(+) and the Cabibbo-Favored decay Λ_(c)^(+)→nK^(-)π^(+)π^(+)

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Chinese Physics C 2023年第2期47卷 1-18页

作者：麦迪娜 M.N.Achasov P.Adlarson M.Albrecht R.Aliberti A.Amoroso 安美儒安琪白羽 O.Bakina R.Baldini Ferroli I.Balossino 班勇 V.Batozskaya D.Becker K.Begzsuren N.Berger M.Bertani D.Bettoni F.Bianchi E.Bianco J.Bloms A.Bortone I.Boyko R.A.Briere A.Brueggemann 蔡浩蔡啸 A.Calcaterra 曹国富曹宁 S.A.Cetin 常劲帆常万玲车国荣 G.Chelkov 陈琛陈超陈刚陈和生陈玛丽陈申见陈少敏 T.Chen 陈旭荣 X.T.Chen 陈元柏陈卓俊成伟帅 S.K.Choi 初晓 G.Cibinetto F.Cossio 崔佳佳代洪亮代建平 A.Dbeyssi R.Ede Boer D.Dedovich 邓子艳 A.Denig I.Denysenko M.Destefanis F.De Mori 丁勇丁逸董静董燎原董明义董翔杜书先段宗欢 P.Egorov 范玉兰方建房双世方文兴方易 R.Farinelli L.Fava F.Feldbauer G.Felici 封常青冯俊华 K Fischer M.Fritsch C.Fritzsch 傅成栋高涵高原宁高扬 S.Garbolino I.Garzia 葛潘婷葛振武耿聪 E.M.Gersabeck A Gilman K.Goetzen 龚丽龚文煊 W.Gradl M.Greco 谷立民顾旻皓顾运厅关春懿郭爱强郭立波郭如盼郭玉萍 A.Guskov 韩文颖郝喜庆 F.A.Harris 何凯凯何康林 F.H.Heinsius C.H.Heinz 衡月昆 C.Herold 侯国一侯颖锐侯治龙胡海明 J.F.Hu 胡涛胡誉黄光顺黄凯旋黄麟钦黄性涛黄燕萍黄震 T.Hussain N Hüsken W.Imoehl M.Irshad J.Jackson S.Jaeger S.Janchiv E.Jang J.H.Jeong 纪全姬清平季晓斌季筱璐吉钰瑶贾泽坤姜赛赛江晓山 Y.Jiang 焦健斌焦铮金山金毅荆茂强 T.Johansson N.Kalantar-Nayestanaki 康晓珅 R.Kappert M.Kavatsyuk 柯百谦 I.K.keshk A.Khoukaz R.Kiuchi R.Kliemt L.Koch O.B.Kolcu B.Kopf M.Kuemmel M.Kuessner A.Kupsc W.Kühn J.J.Lane J.S.Lange P.Larin A.Lavania L.Lavezzi 雷祚弘 H.Leithoff M.Lellmann T.Lenz 李翠李聪李春花李澄李德民李飞李刚李慧李贺李海波李惠静 H.N.li J.Q.li 李静舒李井文李科 L.J li 李龙科李蕾李明浩李培荣李素娴栗帅迎李腾李卫东李卫国李旭红李晓玲李晓宇李彦谷李振轩李紫源梁畅梁昊梁浩梁浩梁勇飞梁羽铁廖广睿廖龙洲 J.libby A.limphirat 林创新林德旭 T.lin 刘北江刘成刘春秀 D.liu 刘福虎刘芳刘峰 G.M.liu H.liu 刘宏邦刘怀民刘欢欢刘汇慧刘建北刘佳俊刘晶译刘凯刘魁勇刘珂刘亮刘露刘美宏刘佩莲刘倩刘树彬刘桐刘维克刘卫民刘翔刘英刘玉斌刘振安刘智青娄辛丑卢飞翔吕海江吕军光陆小玲卢宇卢云鹏 Z.H.Lu 罗成林罗民兴罗涛罗小兰吕晓睿吕翌丰马凤才马海龙马连良马明明马秋梅马润秋马瑞廷马骁妍马尧 F.E.Maas M.Maggiora S.Maldaner S.Malde Q.A.Malik A.Mangoni 冒亚军毛泽普 S.Marcello 孟召霞 J.G.Messchendorp G.Mezzadri H.Miao 闵天觉 R.E.Mitchell 莫晓虎 N.Yu.Muchnoi Y.Nefedov F.Nerling I.B.Nikolaev 宁哲 S.Nisar 牛艳 S.L.Olsen 欧阳群 S.Pacetti 潘祥潘越 A.Pathak P.Patteri M.Pelizaeus 彭海平 K.Peters 平加伦平荣刚 S.Plura S.Pogodin V.Prasad 齐法制齐航漆红荣祁鸣齐天钰钱森钱文斌钱圳乔从丰秦佳佳秦丽清覃潇平秦小帅秦中华邱进发屈三强 K.H.Rashid C.F Institute of High Energy Physics Beijing 100049China Beihang University Beijing 100191China Beijing Institute of Petrochemical Technology Beijing 102617China Bochum Ruhr-University D-44780 BochumGermany 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 COMSATS University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200433China G.I.Budker Institute of Nuclear Physics SB RAS(BINP) Novosibirsk 630090Russia 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 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 I-00044FrascatiItaly INFN Sezione di Perugia I-06100PerugiaItaly University of Perugia I-06100PerugiaItaly INFN Sezione di Ferrara I-44122FerraraItaly University of Ferrara I-44122FerraraItaly Institute of Modern Physics Lanzhou 730000China Institute of Physics and Technology Peace Avenue 54BUlaanbaatar 13330Mongolia Jilin University Changchun 130012China Johannes Gutenberg University of Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Joint Institute for Nuclear Research 141980 DubnaMoscow regionRussia Justus-liebig-Universitaet Giessen II.Physikalisches InstitutHeinrich-Buff-Ring 16D-35392 GiessenGermany Lanzhou Un

Using electron-positron annihilation data samples corresponding to an integrated luminosity of 4.5 fb-1,collected by the BESⅢdetector in the energy region between 4599.53 MeV and 4698.82 MeV,we report the first observations of the Cabibbo-suppressed decaysΛ_(c)^(+)→nπ^(+)π^(0),Λ_(c)^(+)→nπ^(+)π^(-)π^(+),and the Cabibbo-favored decayΛ_(c)^(+)→nK^(-)π^(+)π^(+)with statistical significances of 7.9σ,7.8σ,and>10σ,*** branching fractions of these decays are measured to be B(Λ_(c)^(+)→nπ^(+)π^(0))=(0.64±0.09±0.02)%,B(Λ_(c)^(+)→nπ^(+)π^(-)π^(+))=(0.45±0.07±0.03)%,and B(Λ_(c)^(+)→nK^(-)π^(+)π^(+))=(1.90±0.08±0.09)%,where the first uncertainties are statistical and the second are *** find that the branching fraction of the decayΛ_(c)^(+)→nπ^(+)π^(0)is about one order of magnitude higher than that ofΛ_(c)^(+)→nπ^(+).

关键词： ∧_(c)^(+)baryon Branching fraction BESⅢdetector

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Observation of e^(+)e^(-)→pppñπ-+c.c.

引用

Chinese Physics C 2023年第4期47卷 16-25页

作者：麦迪娜 M.N.Achasov P.Adlarson M.Albrecht R.Aliberti A.Amoroso 安美儒安琪白旭红白羽 O.Bakina R.Baldini Ferroli I.Balossino 班勇 V.Batozskaya D.Becker K.Begzsuren N.Berger M.Bertani D.Bettoni F.Bianchi J.Bloms A.Bortone I.Boyko R.A.Briere A.Brueggemann 蔡浩蔡啸 A.Calcaterra 曹国富曹宁 S.A.Cetin 常劲帆常万玲 G.Chelkov 陈琛陈超陈刚陈和生陈玛丽陈申见陈少敏 T.Chen 陈旭荣 X.T.Chen 陈元柏陈卓俊成伟帅初晓 G.Cibinetto F.Cossio 崔佳佳代洪亮代建平 A.Dbeyssi R.E.de Boer D.Dedovich 邓子艳 A.Denig I.Denysenko M.Destefanis F.De Mori 丁勇董静董燎原董明义董翔杜书先 P.Egorov 范玉兰方建房双世方文兴方易 R.Farinelli L.Fava F.Feldbauer G.Felici 封常青冯俊华 K Fischer M.Fritsch C.Fritzsch 傅成栋高涵高原宁高扬 S.Garbolino I.Garzia 葛潘婷葛振武耿聪 E.M.Gersabeck A Gilman K.Goetzen 龚丽龚文煊 W.Gradl M.Greco 谷立民顾旻皓顾运厅关春懿郭爱强郭立波郭如盼郭玉萍 A.Guskov 韩婷婷韩文颖郝喜庆 F.A.Harris 何凯凯何康林 F.H.Heinsius C.H.Heinz 衡月昆 C.Herold M.Himmelreich 侯国一侯颖锐侯治龙胡海明 J.F.Hu 胡涛胡誉黄光顺黄凯旋黄麟钦黄麟钦黄性涛黄燕萍黄震 T.Hussain N Hüsken W.Imoehl M.Irshad J.Jackson S.Jaeger S.Janchiv 纪全姬清平季晓斌季筱璐吉钰瑶贾泽坤姜侯兵姜赛赛江晓山 Y.Jiang 焦健斌焦铮金山金毅荆茂强 T.Johansson N.Kalantar-Nayestanaki 康晓珅 R.Kappert 柯百谦 I.K.keshk A.Khoukaz P.Kiese R.Kiuchi R.Kliemt L.Koch O.B.Kolcu B.Kopf M.Kuemmel M.Kuessner A.Kupsc W.Kühn J.J.Lane J.S.Lange P.Larin A.Lavania L.Lavezzi 雷祚弘 H.Leithoff M.Lellmann T.Lenz 李翠李聪李春花李澄李德民李飞李刚李慧李贺李海波李惠静 H.N.li J.Q.li 李静舒李井文李科 L.J.li 李龙科李蕾李明浩李培荣李素娴栗帅迎李腾李卫东李卫国李旭红李晓玲李晓宇梁昊梁浩梁浩梁勇飞梁羽铁廖广睿廖龙洲 J.libby A.limphirat 林创新林德旭 T.lin 刘北江刘春秀 D.liu 刘福虎刘芳刘峰 G.M.liu H.liu, 刘宏邦刘怀民刘欢欢刘汇慧刘建北刘佳俊刘晶译刘凯刘魁勇刘珂刘亮刘露刘美宏刘佩莲刘倩刘树彬刘桐刘维克刘卫民刘翔刘英刘玉斌刘振安刘智青娄辛丑卢飞翔吕海江吕军光陆小玲卢宇卢云鹏 Z.H.Lu 罗成林罗民兴罗涛罗小兰吕晓睿吕翌丰马凤才马海龙马连良马明明马秋梅马润秋马瑞廷马骁妍马尧 F.E.Maas M.Maggiora S.Maldaner S.Malde Q.A.Malik A.Mangoni 冒亚军毛泽普 S.Marcello 孟召霞 J.G.Messchendorp G.Mezzadri H.Miao 闵天觉 R.E.Mitchell 莫晓虎 N.Yu.Muchnoi Y.Nefedov F.Nerling I.B.Nikolaev 宁哲 S.Nisar 牛艳 S.L.Olsen 欧阳群 S.Pacetti 潘祥潘越 A.Pathak M.Pelizaeus 彭海平 K.Peters 平加伦平荣刚 S.Plura S.Pogodin V.Prasad 齐法制齐航漆红荣祁鸣齐天钰钱森钱文斌钱圳乔从丰秦佳佳秦丽清覃潇平秦小帅秦中华邱进发屈三强 K.H.Rashid C.F.Redmer 任旷洁 A.Rivetti V.Rodin M.Rolo 荣刚 Ch.Ros Institute of High Energy Physics Beijing 100049China Beihang University Beijing 100191China Beijing Institute of Petrochemical Technology Beijing 102617China Bochum Ruhr-University D-44780 BochumGermany 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 COMSATS University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200433China G.I.Budker Institute of Nuclear Physics SB RAS(BINP) Novosibirsk 630090Russia 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 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 I-00044FrascatiItaly INFN Sezione di Perugia I-06100PerugiaItaly University of Perugia I-06100PerugiaItaly INFN Sezione di Ferrara I-44122FerraraItaly University of Ferrara I-44122FerraraItaly Institute of Modern Physics Lanzhou 730000China B Ulaanbaatar 13330Mongolia Jilin University Changchun 130012China Johannes Gutenberg University of Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Joint Institute for Nuclear Research 141980 DubnaMoscow regionRussia Justus-liebig-Universitaet Giessen II.Physikalisches InstitutHeinrich-Buff-Ring 16D-35392 GiessenGermany Lanzhou University Lanzhou 730000China liaoning Normal Unive

Using data taken at 29 center-of-mass energies between 4.16 and 4.70 GeV with the BESⅢdetector at the Beijing Electron Positron Collider corresponding to a total integrated luminosity of approximately 18.8 fb^(-1),the process e^(+)e^(-)→pppñπ+*** observed for the first time with a statistical significance of 11.5σ.The average Born cross sections in the energy ranges of(4.160,4.380)GeV,(4.400,4.600)GeV and(4.610,4.700)GeV are measured to be(21.5±5.7±1.2)fb,(46.3±10.6±2.5)fb and(59.0±9.4±3.2)fb,respectively,where the first uncertainties are statistical and the second are *** line shapes of the pñ and ppπ^(-)invariant mass spectra are consistent with phase space distributions,indicating that no hexaquark or di-baryon state is observed.

关键词： Multi-baryon channel hexaquark di-baryon states cross section measurement

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