Search for D<SUP>0</SUP>-D<SUP>0</SUP> Mixing with Double-Layer TOF at BESⅢ

SUN Yong-Zhao; HE Kang-Lin; LI Wei-Dong; BIAN Jian-Ming; CAO Guo-Fu; DENG Zi-Yan; HE Miao; HUANG Bin; JI Xiao-Bin; LI Gang; LI Hai-Bo; LIU Chun-Xiu; LIU Hua

Chinese Physics C> 2007, Vol. 31> Issue(5) : 423-430

Search for D⁰-D⁰ Mixing with Double-Layer TOF at BESⅢ

Institute of High Energy Physics, CAS, Beijing 100049, China2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China3 CCASTWorld Laboratory, Beijing 100080, China4 Peking University, Beijing 100871, China5 Hunan University, Changsha 410082, China6 Shandong University, Ji'nan 250100, China

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The decay of D⁰→K^－π⁺ is a golden channel in the study of D⁰-D⁰ mixing at ψ(3770). The requirements of excellent K/π separation will play an essential role in the mixing search. A technique was developed to precisely extract event start time (t₀) with TOF measurements in multiple charged tracks event at BESⅢ. After the t₀ extracting algorithm, the time resolution of double-layer TOF reduced from ～78ps to ～64ps, the upper limit of D⁰-D⁰ mixing rate at 95% CL can be improved by a factor of 7% in 20fb^－1 ψ(3770) data.

References

[1]

. Nelson H N. In Jaros J A, Peskin M E ed. Proc. of the 19thIntl. Symp. on Phton and Lepton Interactions at High En-ergy LP99. SLAC, Stanford, CA 19992. Bianco S, Fabbri F L, Benson D et al. Riv. Nuovo Cimento,2003, 26N7: 13. Petrov A A. eConf C030603, MEC05, 20034. Bigi I, Uraltsev N G. Nucl. Phys., 2001, B592: 925. Falk A F, Grossman Y, Ligeti Z et al. Phys. Rev., 2002,D65: 0540346. Chua C K, Hou W S. hep-ph/01101067. Falk A F, Grossman Y, Ligeti Z et al. Phys. Rev., 2004,D69: 1140218. Leurel M, Nir Y, Seiberg N. Nucl. Phys., 1994, B420: 4689. Arkani-Hamed N, Hall L, Smith D et al. Phys. Rev., 2000,D61: 11600310. YAO W M et al. Journal of Physics, 2006, G33: 111. Asner D M, Sun W M. Phys. Rev., 2006, D73: 03402412. Gronan M, Grossman Y, Rosner J L. Phys. Lett., 2001,B508: 3713. BES0 Design Report. Interior Document in Institute ofHigh Energy Physics, 200414. Harris F A (BES Collab.). arXiv:physics/060605915. LI Wei-Dong, LIU Huai-Min et al. The Offline Software forthe BES0 Experiment. Proceeding of CHEP06. Mumbai,India, 200616. DENG Zi-Yan et al. HEP NP, 2006, 30(5): 371-377(in Chinese)(邓子艳等.高能物理与核物理,2006, 30(5): 371-377)17. Agostinelli S et al(Geant4 Collab.). Nucl. Instrum. Meth-ods, 2003, A506: 25018. RONG Gang et al. HEP NP 2001, 25: 154(in Chinese)(荣刚等.高能物理与核物理,2001, 25: 154)19. SUN Sheng-Sen, HE Kang-Lin et al. HEP NP, 2005,29(2): 162-167(in Chinese)(孙胜森,何康林等.高能物理与核物理,2005, 29(2): 162-167)20. JIANG Lin-Li. P.H.D Thesis, University of Sciences andTechnology of China, 2006(in Chinese)(蒋林立.中国科学技术大学博士论文,2006)21. MA Xiang et al. Nuclear Electronics Detection Technol-ogy, to be Published(in Chinese)(马想等.核电r学与核探测技术,待发表)22. HE Kang-Lin, MAO Ze-Pu. Charged Particle Detection.Lecture on CCAST, 200623. HU Ji-Feng, JIANG Lin-Li et al. BES Interior Report24. Avery P. Applied Fitting Theory I: General Least SquaresTheory, CBX-91-7225. Avery P. Applied Fitting Theory VI: Formulas for Kine-matic Fitting, CBX-98-3726. Lonnblad L et al. Comput. Phys. Commun., 1994, 84: 30727. HE Kang-Lin. Charm Physics Potential at BES0. Proceed-ing of CLEO-c and BES0 Joint Workshop on Charm, QCDand tau Physics. Beijing, 2004, Jan.13-1528. Feldman G J, Cousins R D. Phys. Rev., 1998, D57: 3873

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[3]	ZHAO Li , ZHANG Zi-Ping (for the Belle collaboration) . D⁰-D⁰ mixing and other charm decays at Belle. Chinese Physics C, 2010, 34(6): 774-779. doi: 10.1088/1674-1137/34/6/027
[4]	A.J.Schwartz . Measurements of D⁰-D⁰ mixing and searches for CP violation: HFAG combination of all data. Chinese Physics C, 2008, 32(6): 477-482. doi: 10.1088/1674-1137/32/6/014
[5]	XING Zhi-Zhong . An overview of D⁰-D⁰ mixing and CP violation. Chinese Physics C, 2008, 32(6): 483-487. doi: 10.1088/1674-1137/32/6/015
[6]	WANG Wei , . Measuring D⁰-D⁰ mixing in D→f₀(980) K^* and more. Chinese Physics C, 2008, 32(10): 773-775. doi: 10.1088/1674-1137/32/10/001
[7]	HUANG Bin , ZHENG Yang-Heng , LI Wei-Dong . A simulation study on the measurement of D⁰-D⁰ mixing parameter y at BESⅢ. Chinese Physics C, 2008, 32(12): 945-951. doi: 10.1088/1674-1137/32/12/002
[8]	LI Hai-Bo . D⁰-D⁰ mixing and CP violation at BES-Ⅲ. Chinese Physics C, 2008, 32(6): 470-476. doi: 10.1088/1674-1137/32/6/013
[9]	WANG Shuai-Wei , HUANG Jin-Shu , SONG Tai-Ping , LU Gong-Ru . Simultaneous Solution to B_d⁰→φK^*0 Polarization Anomaly and B_d→φK_S CP Asymmetry. Chinese Physics C, 2007, 31(10): 900-906.
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[11]	LIU Fang , HE Kang-Lin , SUN Sheng-Sen , YANG Fan , ZHENG Zhi-Peng , LI Jin . Using the Q of TOF to Identify the Particles. Chinese Physics C, 2005, 29(8): 781-786.
[12]	. Study of Exclusive Hadronic Decays for D0→Ks0π+π- and D0→Ks0K+K- and Their Resonant Structures. Chinese Physics C, 2004, 28(1): 1-10.
[13]	PENG Hai-Ping , SHEN Xiao-Yan , LI Hai-Bo , ZHANG Zi-Ping , CHEN Hong-Fang , YE Shu-Wei . Corrections to BESⅡ TOF Time and Its Resolution. Chinese Physics C, 2002, 26(10): 1078-1086.
[14]	BES Callaboration . Decay of the J/ψ to Σ⁰Σ⁰ Final State. Chinese Physics C, 2002, 26(2): 93-99.
[15]	RONG Gang , ZHAO Jia-Wei , LIU Qi , XUE Sheng-Tian , CHEN Guang-Pei , LI Pei-Qin , LIU Jing , MAO Ze-Pu , LI Wei-Guo , QIU Jin-Fa , XU Chun-Cheng , XIE Yue-Hong , YUAN Ye , ZHAO Hai-Wen . Data Offline Calibration for the BES-Ⅱ TOF System. Chinese Physics C, 2001, 25(2): 154-159.
[16]	LV Junguang , Hu Jingliang , Zheng Yangheng , Li Jin . Performance Study of Double-layer TOF Detector. Chinese Physics C, 1999, 23(6): 505-511.
[17]	BES Collaboration . Study of J/ψ、γπ⁰π⁰ at BES. Chinese Physics C, 1999, 23(8): 745-752.
[18]	Bai Jingzhi , Bian Jianguo , Chai Zhengwei , Chen Guangpei , Chen Hongfang , Chen Jiangchuan , Chen Shaomin , Chen Yaqing , Chen Yu , Chen Yuanbo , Cheng Baosen , Cui Xiangzong , Ding Huiliang , Du Zhizhen , Fan Xiaoling , Fang Jian , Gao Cuishan , Gao Meili , Gao Shuqi , Gu Jianhui , Gu Shudi , Gu Weixin , Gu Yifan , Guo Yanan , Han Shiwen , Han Ying , He Jingtang , He Ju , He Mao , Hu Guiyun , Hu Jingliang , Hu Qionghui , Hu Tao , Hu Xiaoqing , Huang Xiuping , Huang Yinzhi , Jiang Chunhua , Jin Shan , Jin Yan , Kang Shuhui , Ke Zunjian , Lai Yuanfen , Lan Huibin , Lang Pengfei , Li Jin , Li Peiqin , Li Qun , Li Rubai , Li Wei , Li Weidong , Li Weiguo , Li Xinhua , Li Xiaonan , Lin Shuzi , Liu Huaimin , Liu Jing , Liu Jinghua , Liu Qi , Liu Rongguang , Liu Yan , Liu Zhenan , Lü Feng , Lü Junguang , Lu Jianye , Luo Shuanqun , Luo Yong , Ma Aimin , MaEncheng , Ma Jimao , Mao Huishun , Mao Zepu , Meng Xiangcheng , Ni Hulling , Nie Jing , Qi Nading , Qu Yunhe , Qiu Jinfa , Que Youkun , Rong Gang , Shao Yuying , Shen Benwei , Shen Dingli , Shen Hong , Shen Xiaoyan , Sheng Huayi , Shi Huanzhang , Song Xiaofei , Sun Fang , Sun Hansheng , Sun Shijun , Tan Yiping , Tang Suqiu , Tian Jianling , Tong Guoliang , Wang Feng , Wang Jufang , Wang Linzhou , Wang Lingshu , Wang Man , Wang Meng , Wang Peiliang , Wang Ping , Wang Shaomin , Wang Taijie , Wang Yunyong , Wei Chenglin , Wu Yougeng , Xi Deming , Xia Xiaomi , Xie Peipei , Xiong Weijun , Xu Guofa , Xu Rongsheng , Xu Zhijing , Xue Shengtian , Yan Jie , Yan Wuguang , Yang Changyou , Yang Chunmin , Yang Jie , Yang Xiaofeng , Ye Minghan , Ye Shizhang , Ye Shuwei , Yi Kai , Yu Chuansong , Yu Chunxu , Yu Zhitang , Yu Zhongqiang , Yuan Changzheng , Zhang Bingyun , Zhang Changchun , Zhang Dahua , Zhang Dehong , Zhang Huiling , Zhang Jian , Zhang Jiawen , Zhang Lin , Zhang Liangsheng , Zhang Qinjian , Zhang Shaoqiang , Zhang Xueyao , Zhang Yu , Zhang Yueyuan , Zhao Dixin , Zhao Haiwen , Zhao Jingwei , Zhao Meng , Zhao Weiren , Zheng Jianping , Zheng Linsheng , Zheng Zhipeng , Zhou Guangpu , Zhou Huashi , Zhou Li , Zhou Yuehua , Zhu Guoyi , Zhu Qiming , Zhu Yongsheng , Zhu Yucan , Zhuang Baoan . Measurement of the Branching Ratios for J/ψ→γπ⁰, γη'→3γ on the BES. Chinese Physics C, 1997, 21(S2): 9-14.
[19]	BES Collaboration . Experimental Study of f₀ (975) in the J/ψ Decays. Chinese Physics C, 1995, 19(4): 289-295.
[20]	LIU Liang-Gang . ρ⁰-ω Mixing Effect in the (ρ⁰,ω)→e⁺e^－ Pair Decay. Chinese Physics C, 1993, 17(7): 614-618.

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SUN Yong-Zhao, HE Kang-Lin, LI Wei-Dong, BIAN Jian-Ming, CAO Guo-Fu, DENG Zi-Yan, HE Miao, HUANG Bin, JI Xiao-Bin, LI Gang, LI Hai-Bo, LIU Chun-Xiu, LIU Hua, Search for D⁰-D⁰ Mixing with Double-Layer TOF at BESⅢ[J]. Chinese Physics C, 2007, 31(5): 423-430.

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Received: 2006-08-29
Revised: 2006-10-30

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沈阳化工大学材料科学与工程学院沈阳 110142

Search for D⁰-D⁰ Mixing with Double-Layer TOF at BESⅢ

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