【作者】
阿布里克木·麦迪娜;
白景芝;
班勇;
卞建国;
蔡啸;
陈海璇;
陈和生;
陈宏芳;
陈江川;
陈进;
陈元柏;
迟少鹏;
初元萍;
崔象宗;
戴又善;
邓子艳;
董燎原;
董清风;
杜书先;
杜志珍;
方建;
房双世;
傅成栋;
高翠山;
高原宁;
顾树棣;
顾运厅;
过雅南;
郭义庆;
何康林;
何瑁;
衡月昆;
胡海明;
胡涛;
黄光顺;
黄性涛;
黄秀萍;
季晓斌;
江晓山;
焦健斌;
金大鹏;
金山;
金毅;
赖元芬;
李刚;
李海波;
李会红;
李金;
李仁英;
李树敏;
李卫东;
李卫国;
李晓玲;
李学潜;
黎元柳;
梁勇飞;
廖红波;
刘春秀;
刘芳;
刘峰;
刘怀民;
刘汇慧;
刘建北;
刘晶;
刘觉平;
刘荣光;
刘振安;
鲁公儒;
吕峰;
吕海江;
吕军光;
罗成林;
马凤才;
马海龙;
马连良;
马秋梅;
马续波;
毛泽普;
莫晓虎;
聂晶;
彭海平;
漆纳丁;
秦虎;
邱进发;
任震宇;
荣刚;
单连友;
尚雷;
沈定力;
沈肖雁;
盛华义;
石峰;
史欣;
孙汉生;
孙俊峰;
孙胜森;
孙永昭;
孙志嘉;
谭振强;
唐晓;
田雨润;
童国梁;
王大勇;
王岚;
王灵淑;
王曼;
王佩良;
王平;
王文峰;
王贻芳;
王喆;
王铮;
王征;
王至勇;
魏诚林;
魏代会;
吴宁;
夏小米;
谢小希;
辛波;
许国发;
徐晔;
阎沐霖;
杨帆;
杨洪勋;
杨杰;
杨永栩;
叶铭汉;
叶云秀;
易智勇;
俞国威;
苑长征;
袁建明;
袁野;
臧石磊;
曾瑜;
曾云;
张丙新;
张炳云;
张长春;
张达华;
章红宇;
张建勇;
张家文;
张勤俭;
张晓梅;
张学尧;
张一云;
张志清;
张子平;
赵棣新;
赵京伟;
赵明刚;
赵平平;
赵维仁;
赵政国;
郑汉青;
郑建平;
郑志鹏;
周莉;
周能锋;
朱科军;
朱启明;
朱莹春;
朱永生;
祝玉灿;
朱自安;
庄保安;
庄胥爱;
邹冰松;
【Author】
BES Collaboration ABLIKIM Medina BAI Jing-Zhi BAN Yong BIAN Jian-Guo CAI Xiao CHEN Hai-Xuan CHEN He-Sheng CHEN Hong-Fang CHEN Jiang-Chuan CHEN Jin CHEN Yuan-Bo CHI Shao-Peng CHU Yuan-Ping CUI Xiang-Zong DAI You-Shan DENG Zi-Yan DONG Liao-Yuan DONG Qing-Feng DU Shu-Xian DU Zhi-Zhen FANG Jian FANG Shuang-Shi FU Cheng-Dong GAO Cui-Shan GAO Yuan-Ning GU Shu-Di GU Yun-Ting GUO Ya-Nan GUO Yi-Qing HE Kang-Lin HE Mao HENG Yue-Kun HU Hai-Ming HU Tao HUANG Guang-Shun HUANG Xing-Tao HUANG Xiu-Ping JI Xiao-Bin JIANG Xiao-Shan JIAO Jian-Bin JIN Da-Peng JIN Shan JIN Yi LAI Yuan-Fen LI Gang LI Hai-Bo LI Hui-Hong LI Jin LI Ren-Ying LI Shu-Min LI Wei-Dong LI Wei-Guo LI Xiao-Ling LI Xue-Qian LI Yuan-Liu LIANG Yong-Fei LIAO Hong-Bo LIU Chun-Xiu LIU Fang LIU Feng LIU Huai-Min LIU Hui-Hui LIU Jian-Bei LIU Jing LIU Jue-Ping LIU Rong-Guang LIU Zhen-An LU Gong-Ru LU Feng LU Hai-Jiang L(U|¨) Jun-Guang LUO Cheng-Lin MA Feng-Cai MA Hai-Long MA Lian-Liang MA Qiu-Mei MA Xu-Bo MAO Ze-Pu MO Xiao-Hu NIE Jing PENG Hai-Ping QI Na-Ding QIN Hu QIU Jin-Fa REN Zhen-Yu RONG Gang SHAN Lian-You SHANG Lei SHEN Ding-Li SHEN Xiao-Yan SHENG Hua-Yi SHI Feng SHI Xin SUN Han-Sheng SUN Jun-Feng SUN Sheng-Sen SUN Yong-Zhao SUN Zhi-Jia TAN Zhen-Qiang TANG Xiao TIAN Yu-Run TONG Guo-Liang WANG Da-Yong WANG Lan WANG Ling-Shu WANG Man WANG Pei-Liang WANG Ping WANG Wen-Feng WANG Yi-Fang WANG Zhe WANG Zheng WANG Zheng WANG Zhi-Yong WEI Cheng-Lin WEI Dai-Hui WU Ning XIA Xiao-Mi XIE Xiao-Xi XIN Bo XU Guo-Fa XU Ye YAN Mu-Lin YANG Fan YANG Hong-Xun YANG Jie YANG Yong-Xu YE Ming-Han YE Yun-Xiu YI Zhi-Yong YU Guo-Wei YUAN Chang-Zheng YUAN Jian-Ming YUAN Ye ZANG Shi-Lei ZENG Yu ZENG Yun ZHANG Bing-Xin ZHANG Bing-Yun ZHANG Chang-Chun ZHANG Da-Hua ZHANG Hong-Yu ZHANG Jian-Yong ZHANG Jia-Wen ZHANG Qin-Jian ZHANG Xiao-Mei ZHANG Xue-Yao ZHANG Yi-Yun ZHANG Zhi-Qing ZHANG Zi-Ping ZHAO Di-Xin ZHAO Jing-Wei ZHAO Ming-Gang ZHAO Ping-Ping ZHAO Wei-Ren ZHAO Zheng-Guo ZHENG Han-Qing ZHENG Jian-Ping ZHENG Zhi-Peng ZHOU Li ZHOU Neng-Feng ZHU Ke-Jun ZHU Qi-Ming ZHU Ying-Chun ZHU Yong-Sheng ZHU Yu-Can ZHU Zi-An ZHUANG Bao-An ZHUANG Xu-Ai ZOU Bing-Song Iowa State University, Ames, IA 50011-3160, USA Purdue University, West Lafayette, IN 47907, USA Cornell University, Ithaca, NY 14853, USA Laboratoire de l’Accélératear Linéaire, F-91898 Orsay, Prance University of Michigan, Ann Arbor, MI 48109, USA DESY, D-22607, Hamburg, Germany (Institute of High Energy Physics, CAS, Beijing 100049, China) (Department of Modern Physics, University of Science and Technology of China, Hefei 230026 , China) (Department of Physics, Shandong University, Jinan 250100, China) (Department of Physics, Zhejiang University, Hangzhou 310028, China) (School of Physics, Peking University, Beijing 100871, China) (Department of Particle Physics, Huazhong Normal University, Wuhan 430079, China) (China Center for Advanced Science and Technology(CCAST), Beijing 100080, China) (College of Physics, Nankai University, Tianjin 300071, China) (College of Physics and Information Engineering, Henan Normal University, Xinxiang 453002, China) (College of Physics and Electronic Information, Wuhan University, Wuhan 430072, China) (Department of Applied Physics, Hunan University, Changsha 410082, China) (Department of Physics, Liaoning University, Shenyang 110036, China) (Department of Physics, Sichuan University, Chengdu 610064, China) (Center of High Energy Physics, Tsinghua University, Beijing 100084, China) (Department of Physics and Electronic Science, Guangxi Normal University, Guilin 541004, China) (Department of Physics, Nanjing Normal University, Nanjing 210097, China) (College of Physics Science and Technology, Guangxi University, Nanning 530004, China)
【机构】
BES合作组;
中国科学院高能物理研究所;
北京大学物理学院;
中国科学技术大学近代物理系;
中国高等科学技术中心;
浙江大学物理系;
清华大学高能物理中心;
广西大学物理科学与工程技术学院;
山东大学物理系;
辽宁大学物理系;
南开大学物理学院;
四川大学物理系;
华中师范大学粒子物理研究所;
武汉大学物理与电子信息学院;
河南师范大学物理与信息工程学院;
南京师范大学物理系;
广西师范大学物理与电子科学系;
湖南大学应用物理系;
中国科学院高能物理研究所 北京 100049;
北京 100049;
北京 100871;
合肥 230026;
北京 100080;
杭州 310028;
北京 100084;
南宁 530004;
济南 250100;
沈阳 110036;
天津 300071;
成都 610064;
武汉 430079;
武汉 430072;
新乡 453002;
南京 210097;
桂林 541004;
长沙 410082;
新乡453002;
【摘要】 利用工作在北京正负电子对撞机(BEPC)上的北京谱仪(BES)收集到的33pb-1的Ψ(3770)数据,寻找D 介子味道改变中性流(FCNC)和轻子数不守恒(LNV)的稀有衰变,包括4个D0介子的衰变模式(K-0e+e-,φe+e-, ρ0e+e-和K-*0e+e-)和6个D+介子的衰变模式(K-e+e-,K+e+e-,π-e+e+,π+e+e-,K*-e+e+和K*+e+e-).没有发现信号,给出90%置信水平的上限.其中,D+介子的两个衰变模式D+→K*-e+e+和D+→K*+e+e-的上限是首次测量.更多还原
【Abstract】 A search for flavor changing neutral current (FCNC) and lepton number violation (LNV) decays of charmed D mesons is performed using 33pb-1 data around Ψ(3770) collected by BES Ⅱ detector at BEPC. Four decay modes of D0(K-0e+e-,φe+e-,ρ0e+e- and K-*0e+e-) and six decay modes of D+(K-e+e+, K+e+e-,π-e+e+, π+e+e-, K*- e+e+ and K*+e+e-) are presented. No evidence is found for the above decays, therefore, the upper limits at 90% confidence level are set. The limits of two D+ decays modes, D+→K*-e+e+和D+→K*+e+e- have not been reported previously.更多还原
【基金】 国家自然科学基金(10491300,10225522,10225524,10225525,10425525)中国科学院“九五”重大及特别支持项目(KJ95T-03)中国科学院“百人计划”基金(U-11,U-24,U-25)中国科学院如识创新基金(U-602,U-34)资助~~