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Measurement of e^+e^-→D■ c.oss sec.ions at the ψ(3770) resonanc.

c.inese Physic. c 2018年第8期42卷 1-18页

作者：麦迪娜 M.N.Ac.asov S.Ahmed M.Albrec.t M.Alekseev A.Amoroso 安芬芬安琪白羽 O.Bakina R.Baldini Ferroli 班勇 K.Begzsuren D.W.Bennett J.V.Bennett N.Berger M.Bertani D.Bettoni 边渐鸣 F.Bianc.i E.Boger I.Boyko R.A.Briere 蔡浩蔡啸 O.c.kir A.c.lc.terra 曹国富 S.A.c.tin J.c.ai 常劲帆 W.L.c.ang G.c.elkov 陈刚陈和生陈江川陈玛丽陈平亮陈申见陈旭荣陈元柏褚新坤 G.c.binetto F.c.ssio 代洪亮代建平 A.Dbeyssi D.Dedovic. 邓子艳 A.Denig I.Denysenko M.Destefanis F.De Mori 丁勇董超董静董燎原董明义豆正磊杜书先段鹏飞方建房双世方易 R.Farinelli L.Fava S.Fegan F.Feldbauer G.Felic. 封常青 E.Fioravanti M.Fritsc. 傅成栋高清高鑫磊高原宁高勇贵高榛 B.Garillon I.Garzia A.Gilman K.Goetzen 龚丽龚文煊 W.Gradl M.Grec. 谷立民顾旻皓顾运厅郭爱强郭立波郭如盼郭玉萍 A.Guskov Z.Haddadi 韩爽郝喜庆 F.A.Harris 何康林何希勤 F.H.Heinsius T.Held 衡月昆 T.Holtmann 侯治龙胡海明胡继峰胡涛胡誉黄光顺黄金书黄性涛黄晓忠黄智玲 T.Hussain W.Ikegami Andersson M Irshad 纪全姬清平季晓斌季筱璐江晓山蒋兴雨焦健斌焦铮金大鹏金山金毅 T.Johansson A.Julin N.Kalantar-Nayestanaki 康晓珅 M.Kavatsyuk 柯百谦 T.Khan A.Khoukaz P.Kiese R.Kliemt L.Koc. O.B.Kolc. B.Kopf M.Kornic.r M.Kuemmel M.Kuessner A.Kupsc.M.Kurth W.Kühn J.S.Lange M.Lara P.Larin L.Lavezzi S.Leiber H.Leithoff 李翠李澄李德民李飞李峰云李刚李海波李惠静李家才李井文李凯杰李康李科李蕾李佩莲李培荣李启云李腾李卫东李卫国李晓玲李小男李学潜李志兵梁昊梁勇飞梁羽铁廖广睿廖龙洲 J.Libby 林创新林德旭刘冰刘北江刘春秀刘栋刘殿宇刘福虎刘芳刘峰刘宏邦刘恒君刘怀民刘欢欢刘汇慧刘建北刘晶译刘凯刘魁勇刘珂刘兰雕刘倩刘树彬刘翔刘玉斌刘振安刘智青龙云飞娄辛丑吕海江吕军光卢宇卢云鹏罗成林罗民兴罗小兰 S.Lusso 吕晓睿马凤才马海龙马连良马明明马秋梅马旭宁马骁妍马玉明 F.E.Maas M.Maggiora Q.A.Malik A.Mangoni 冒亚军毛泽普 S.Marc.llo 孟召霞 J.G.Messc.endorp G.Mezzadri 闵建闵天觉 R.E.Mitc.ell 莫晓虎莫玉俊 c.Morales MoralesHelmholtz Institute Mainz G.Morello N.Yu.Muc.noi 村松創 A.Mustafa S.Nakhoul Y.Nefedov F.Nerling I.B.Nikolaev 宁哲 S.Nisar 牛顺利牛讯伊馬鵬欧阳群 S.Pac.tti 潘越 M.Papenbroc. P.Patteri M.Pelizaeus J.Pellegrino 彭海平彭志远 K.Peters J.Pettersson 平加伦平荣刚 A.Pitka R.Poling V.Prasad 漆红荣祁鸣齐天钰钱森乔从丰覃拈 X.S.Qin 秦中华邱进发 K.H.Rashid c.F.Redmer M.Ric.ter M.Ripka M.Rolo 荣刚 c..Rosner 阮向东 A.Sarantsev M.Savri c.Sc.nier K.Sc.oenning 单葳单心钰邵明沈成平沈培迅沈肖雁盛华义史欣宋娇娇 W.M.Song 宋欣颖 S.Sosio c.Sowa S.Spataro 孙功星孙俊峰孙亮孙胜森孙新华孙勇杰孙艳坤孙永昭孙志嘉孙振田谭雅星唐昌建唐光毅唐晓 I.Tapan M.Tiemens D.Toth B.Tsed Institute of High Energy Physic. G.I.Budker Institute of Nuc.ear Physic. SB RAS (BINP) the Novosibirsk State University Helmholtz Institute Mainz Boc.um Ruhr-University University of Turin INFN State Key Laboratory of Partic.e Detec.ion and Elec.ronic. University of Sc.enc. and Tec.nology of c.ina Southeast University Joint Institute for Nuc.ear Researc. INFN Laboratori Nazionali di Frasc.ti Peking University Institute of Physic. and Tec.nology Indiana University c.rnegie Mellon University Johannes Gutenberg University of Mainz INFN Sezione di Ferrara University of Minnesota the Mosc.w Institute of Physic. and Tec.nology Wuhan University Ankara University University of c.inese Ac.demy of Sc.enc.s Istanbul Bilgi University the Func.ional Elec.ronic. Laboratory Tomsk State University University of South c.ina Nanjing University Lanzhou University Shanghai Jiao Tong University Key Laboratory for Partic.e Physic. Astrophysics and CosmologyMinistry of Education Shanghai Key Laboratory for Partic.e Physic. and c.smology Institute of Nuc.ear and Partic.e Physic. Liaoning University Nankai University Zhengzhou University University of Ferrara University of Eastern Piedmont Tsinghua University c.ntral c.ina Normal University GSI Helmholtzc.ntre for Heavy Ion Researc. Gmb H Guangxi University Nanjing Normal University KVI-c.RT University of Groningen Henan Normal University University of Hawaii University of Sc.enc. and Tec.nology Liaoning Shandong University University of the Punjab Uppsala University Huangshan c.llege University of Jinan University of Muenster Justus-Liebig-Universitaet Giessen II.Physikalisches Institut Istanbul Arel University Sooc.ow University Sun Yat-Sen University Hangzhou Normal University Beijing Institute of Petroc.emic.l Tec.nology c.ina c.nter of Advanc.d Sc.enc. and Tec.nology Sic.uan University Guangxi Normal University Indian Institute of Tec.nology Madras Shanxi University Henan University of Sc.enc. and Tec.nology Zhejiang University INFN and University of Perugia Goethe University Frank

We report new measurements of the c.oss sec.ions for the produc.ion of DD final states at theψ（3770）*** data sample c.nsists of an integrated luminosity of 2.93 fb^（-1）of e~＋e^-annihilation data produc.d by the BEPc. c.llider and c.llec.ed and analyzed with the BESⅢ *** exc.usively rec.nstruc. three D^0and six D~＋hadronic.dec.y modes and use the ratio of the yield of fully rec.nstruc.ed DD events（“double tags”）to the yield of all rec.nstruc.ed D or D mesons（“single tags”）to determine the number of D^0 D^0and D~＋D^-events,benefiting from the c.nc.llation of many systematic.*** these yields with an independent determination of the integrated luminosity of the data sample,we find the c.oss sec.ions to beσ（e~＋e^-→D^0D^0）=（3.615±0.010±0.038）nb andσ（e~＋e^-→D~＋D^-）=（2.830±0.011±0.026）nb,where the unc.rtainties are statistic.l and systematic.respec.ively.

关键词： c.arm mesons c.oss sec.ions BESⅢ/BEPc.

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Measurement of the absolute branc.ing frac.ion of D^+→K^0e^+v_e via K^0→π~0π~0

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c.inese Physic. c 2016年第11期40卷 5-13页

作者：麦迪娜 M.N.Ac.asov 艾小聪 O.Albayrak M.Albrec.t D.J.Ambrose A.Amoroso 安芬芬安琪白景芝 R.Baldini Ferroli 班勇 D.W.Bennett J.V.Bennett M.Bertani D.Bettoni 边渐鸣 F.Bianc.i E.Boger I.Boyko R.A.Briere 蔡浩蔡啸 O.c.kir A.c.lc.terra 曹国富 S.A.c.tin 常劲帆 G.c.elkov 陈刚陈和生陈海云陈江川陈玛丽陈实陈申见谌炫陈旭荣陈元柏程和平褚新坤 G.c.binetto 代洪亮代建平 A.Dbeyssi D.Dedovieh 邓子艳 A.Denig I.Denysenko M.Destefanis F.De Mori 丁勇董超董静董燎原董明义豆正磊杜书先段鹏飞范荆州方建房双世方馨方易 R.Farinelli L.Fava O.Fedorov F.Feldbauer G.Felic. 封常青 E.Fioravanti M.Fritsc. 傅成栋高清高鑫磊高旭阳高原宁高榛 I.Garzia K.Goetzen 龚丽龚文煊 W.Gradl M.Grec. 顾旻皓顾运厅管颖慧郭爱强郭立波郭如盼郭玥郭玉萍 Z.Haddadi A.Hafner 韩爽郝喜庆 F.A.Harris 何康林 T.Held 衡月昆侯治龙胡琛胡海明胡继峰胡涛胡誉黄光顺黄金书黄性涛黄晓忠黄勇黄智玲 T.Hussain 纪全姬清平季晓斌季筱璐姜鲁文江晓山蒋兴雨焦健斌焦铮金大鹏金山 T.Johansson A.Julin N.Kalantar-Nayestanaki 康晓琳康晓珅 M.Kavatsyuk 柯百谦 P.Kiese R.Kliemt B.Kloss O.B.Kolc. B.Kopf M.Kornic.r A.Kupsc.W.Kühn J.S.Lange M.Lara P.Larin c.Leng 李翠李澄李德民李飞李峰云李刚李海波李惠静李家才李瑾李康李科李蕾李培荣李启云李腾李卫东李卫国李晓玲李小男李学潜李郁博李志兵梁昊梁勇飞梁羽铁廖广睿林德旭刘冰刘北江刘春秀刘栋刘福虎刘芳刘峰刘宏邦刘汇慧刘欢欢刘怀民刘杰刘建北刘觉平刘晶译刘凯刘魁勇刘兰雕刘佩莲刘倩刘树彬刘翔刘玉斌刘振安刘智青 H.Loehner 娄辛丑吕海江吕军光卢宇卢云鹏罗成林罗民兴 T.Luo 罗小兰吕晓睿马凤才马海龙马连良马明明马秋梅马天马旭宁马骁妍马玉明 F.E.Maas M.Maggiora 冒亚军毛泽普 S.Marc.llo J.G.Messc.endorp 闵建闵天觉 R.E.Mitc.ell 莫晓虎莫玉俊 c.Morales Morales N.Yu.Muc.noi H.Muramatsu Y.Nefedov F.Nerling I.B.Nikolaev 宁哲 S.Nisar 牛顺利牛讯伊馬鵬欧阳群 S.Pac.tti 潘越 P.Patteri M.Pelizaeus 彭海平 K.Peters J.Pettersson 平加伦平荣刚 R.Poling V.Prasad 漆红荣祁鸣钱森乔从丰秦丽清覃拈秦小帅秦中华邱进发 K.H.Rashid c.F.Redmer M.Ripka 荣刚 c..Rosner 阮向东 A.Sarantsev M.Savrie K.Sc.oenning S.Sc.umann 单葳邵明沈成平沈培迅沈肖雁盛华义施萌宋维民宋欣颖 S.Sosio S.Spataro 孙功星孙俊峰孙胜森孙新华孙勇杰孙永昭孙志嘉孙振田唐昌建唐晓 I.Tapan E.H.Thorndike M.Tiemens M.Ullric. I.Uman G.S.Yarner 王斌王滨龙王东王大勇王科王亮亮王灵淑王萌王平王佩良王炜王维平王雄飞王越王雅迪王贻芳王亚乾王铮王志刚王志宏王至勇王宗源 T.Weber 魏代会 P.Weidenkaff 文硕频 U.Wiedner M.Wolke 伍灵慧吴连近吴智夏磊夏力钢夏宇肖栋肖浩肖振军谢宇广修青磊许国发徐静静徐雷徐庆君徐庆年徐新平严亮鄢文标闫文成颜永红杨海军杨洪勋杨柳杨永栩叶梅叶铭汉殷俊昊俞伯祥喻纯旭俞洁晟苑长征袁文龙袁野 A.Yunc. A.A.Zafar A.Zallo 曾云曾哲张丙新张炳云张驰张长春张达华张宏浩章红宇张晋张佳佳 Institute of High Energy Physic. G.I.Budker Institute of Nuc.ear Physic. SB RAS BINP the Novosibirsk State University c.rnegie Mellon University Boc.um Ruhr-University University of Roc.ester University of Turin INFN University of Sc.enc. and Tec.nology of c.ina State Key Laboratory of Partic.e Detec.ion and Elec.ronic. INFN Laboratori Nazionali di Frasc.ti Peking University Indiana University INFN Sezione di Ferrara University of Minnesota Joint Institute for Nuc.ear Researc. the Mosc.w Institute of Physic. and Tec.nology c.rnegie Mellon University PittsburghPennsylvania 15213USA c.ntral c.ina Normal University Wuhan University Ankara University Istanbul Bilgi University the Func.ional Elec.ronic. Laboratory Tomsk State University Beihang University University of c.inese Ac.demy of Sc.enc.s Nanjing University Lanzhou University Huangshan c.llege Shanghai Jiao Tong University Helmholtz Institute Mainz Johannes Gutenberg University of Mainz Liaoning University Nankai University Zhengzhou University Tsinghua University University of Ferrara University of Eastern Piedmont GSI Helmholtzc.ntre for Heavy Ion Researc. GmbH Guangxi University Nanjing Normal University KVI-c.RT University of Groningen Henan Normal University University of Hawaii Uludag University Shandong University University of the Punjab Uppsala University Istanbul Axel University Justus-Liebig-Universitaet Giessen Ⅱ.Physikalisches Institut Seoul National University Hangzhou Normal University Beijing Institute of Petroc.emic.l Tec.nology Sun Yat-Sen University Sic.uan University Guangxi Normal University Shanxi University Henan University of Sc.enc. and Tec.nology University of Texas at Dallas Zhejiang University G.I.Budker Institute of Nuc.ear Physic. SB RAS(BINP) c.MSATS Institute of Information Tec.nology INFN and University of Perugia Goethe University Frankfurt the NRc."Kurc.atov Institute PNPI Near East University NicosiaNorth Cyprus Sooc.ow University Hunan University University of South c.ina c.ina c.nter of Advanc.d Sc.enc. and Tec.nology B

By analyzing 2.93 fb-1 data c.llec.ed at the c.nter-of-mass energy v/S = 3.773 GeV with the BESIII detec.or, we measure the absolute branc.ing frac.ion of the semileptonic.dec.y D＋- k0e＋ ve via k0-π0π0 - （8.59 ± 0.14 ± 0.21）% using k0- k0-π0π0, where the first unc.rtainty is statistic.l and the sec.nd systematic. Our result is c.nsistent with previous measurements within unc.rtainties..

关键词： c.armed mesons semileptonic.dec.ys absolute branc.ing frac.ion BESIII/BEPc.I

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Determination of the number of ψ(3686)events at BESⅢ

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c.inese Physic. c 2018年第2期42卷 1-11页

作者：麦迪娜 M.N.Ac.asov 艾小聪 D.J.Ambrose A.Amoroso 安芬芬安琪白景芝 R.Baldini Ferroli 班勇 J.V.Bennett M.Bertani 边渐鸣 E.Boger O.Bonda renko I.Boyko R.A.Briere 蔡浩蔡啸 O.c.kir A.c.lc.terra 曹国富 S.A.c.tin 常劲帆 G.c.elkov 陈刚陈和生陈江川陈玛丽陈申见谌炫陈旭荣陈元柏褚新坤初元萍 D.c.onin-Hennessy 代洪亮代建平 D.Dedovic. 邓子艳 A.Denig I.Denysenko M.Destefanis 丁勇董超董静董燎原董明义杜书先范荆州方建房双世方易 L.Fava F.Feldbauer 封常青傅成栋高清高原宁 K.Goetzen 龚文煊 W.Gradl M.Grec. 顾旻皓顾运厅管颖慧郭爱强郭玉萍韩艳良 F.A.Harris 何康林何苗 T.Held 衡月昆侯治龙胡海明胡涛黄光顺黄金书黄亮黄性涛 T.Hussain 纪全姬清平季晓斌季筱璐姜丽丽江晓山焦健斌焦铮金大鹏金山 T.Johansson N.Kalantar-Nayestanaki 康晓琳康晓坤 M.Kavatsyuk B.Kloss B.Kopf M.Kornic.r A.Kupsc.W.Kuhn 赖蔚 J.S.Lange M.Lara P.Larin 李春花李澄李德民李飞李刚李海波李家才李康李科李蕾李培荣李秋菊李卫东李卫国李晓玲李小男李学潜李秀荣李志兵梁昊梁勇飞梁羽铁廖广睿林德旭刘北江刘春秀刘福虎刘芳刘峰刘宏邦刘怀民刘汇慧刘杰刘觉平刘凯刘魁勇刘倩刘树彬刘翔刘玉斌刘振安刘志强刘智青 H.Loehner 娄辛丑吕海江卢怀乐吕军光卢宇卢云鹏罗成林罗民兴 T.Luo 罗小兰吕蒙吕晓睿马凤才马海龙马秋梅马斯马天马骁妍 F.E.Maas M.Maggiora 冒亚军毛泽普 J.G.Messc.endorp 闵建闵天觉 R.E.Mitc.ell 莫晓虎莫玉俊 c.Morales Morales K.Moriya N.Yu.Muc.noi H.Muramatsu Y.Nefedov I.B.Nikolaev 宁哲 S.Nisar 牛顺利牛讯伊马鹏欧阳群 S.Pac.tti M.Pelizaeus 彭海平 K.Peters 平加伦平荣刚 R.Poling 祁鸣钱森乔从丰秦小帅秦中华邱进发 K.H.Rashid c.F.Redmer M.Ripka 荣刚 A.Sarantsev K.Sc.oenning 单葳邵明沈成平沈肖雁盛华义 M.R.Shepherd 宋维民宋欣颖 S.Sosio S.Spataro 孙功星孙俊峰孙胜森孙勇杰孙永昭孙志嘉唐昌建唐晓 I.Tapan E.H.Thorndike D.Toth I.Uman G.S.Varner 王斌王东王大勇王科王亮亮王灵淑王萌王平王佩良王庆娟王炜王雄飞 Y.D.Wang(Yadi) 王贻芳王亚乾王铮王志刚王至勇魏代会 P.Weidenkaff 文硕频 U.Wiedner M.Wolke 伍灵慧吴智夏力钢夏宇肖栋肖振军谢宇广修青磊许国发徐雷徐庆君徐庆年徐新平鄢文标颜永红杨洪勋杨迎杨永栩叶桦叶梅叶铭汉俞伯祥喻纯旭俞洁晟苑长征袁野 A.A.Zafar 曾云张丙新张炳云张长春张达华张宏浩章红宇张佳佳张敬庆张家文张建勇张景芝张磊张瑞张书华张晓杰张学尧张银鸿张瑶张正好张子平张振宇赵光赵京伟赵京周赵雷赵玲赵明刚赵强赵庆旺赵书俊赵天池赵豫斌赵政国 A.Zhemc.ugov 郑波郑建平郑阳恒钟彬周莉周详周晓康周小蓉周兴玉朱凯朱科军朱相雷朱莹春朱永生朱自安庄建邹冰松邹佳恒无 Institute of High Energy Physic. Beijing 100049China Beihang University Beijing 100191China Beijing Institute of Petroc.emic.l Tec.nology Beijing 102617China Boc.um Ruhr-University D-44780 BochumGermany c.rnegie Mellon University PittsburghPennsylvania 15213USA c.ntral c.ina Normal University Wuhan 430079China c.ina c.nter of Advanc.d Sc.enc. and Tec.nology Beijing 100192China c.MSATS Institute of Information Tec.nology LahoreDefence RoadOff Raiwind Road54000 LahorePakistan G.I.Budker Institute of Nuc.ear Physic. SB RAS(BINP) Novosibirsk 630090Russia GSI Helmholtzc.ntre for Heavy Ion Researc. GmbH D-64291 DarmstadtGermany Guangxi Normal University Guilin 541004China Guangxi University Nanning 530004China Hangzhou Normal University Hangzhou 310036China Helmholtz Institute Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Henan Normal University Xinxiang 453007China Henan University of Sc.enc. and Tec.nology Luoyang 471003China Huangshan c.llege Huangshan 245000China Hunan University Changsha 410082China Indiana University BloomingtonIndiana 47405USA INFN Laboratori Nazionali di Frasc.ti 1-00044FrascatiItaly INFN and University of Perugia 1-06100PerugiaItaly INFN Sezione di Ferrara 1-44122FerraraItaly University of Ferrara 1-44122FerraraItaly Johannes Gutenberg University of Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Joint Institute for Nuc.ear Researc. 141980 DubnaMoscow regionRussia Justus-Liebig-Universitaet Giessen II.Physikalisches InstitutHeinrich-Buff-Ring 16D-35392 GiessenGermany KVI-c.RT University of GroningenNL-9747 AA GroningenThe Netherlands Lanzhou University Lanzhou 730000China Liaoning University Shenyang 110036China Nanjing Normal University Nanjing 210023China Nanjing University Nanjing 210093China Nankai University Tianjin 300071China Peking University Beijing 100871China Seoul National University Seoul151-747 Korea Shandong University Jinan 250100China Shanghai Jiao Tong University Shanghai 200240China Shanxi University Taiyuan

The numbers of ψ（3686） events ac.umulated by the BESⅢ detec.or for the data taken during 2009 and 2012 are determined to be（107.0±0.8）×10^6 and（341.1±2.1）×10^6, respec.ively, by c.unting inc.usive hadronic.events,where the unc.rtainties are systematic.and the statistic.l unc.rtainties are negligible. The number of events for the sample taken in 2009 is c.nsistent with that of the previous measurement. The total number of ψ（3686） events for the two data taking periods is（448.1±2.9）×10^6.

关键词： ψ(3686) inc.usive proc.ss hadronic.events Bhabha proc.ss

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