Search for D0-D0 mixing with double-layer TOF at BESIII

Yong Zhao Sun; Kang Lin He; Wei Dong Li; Jian Ming Bian; Guo Fu Cao; Zi Yan Deng; Miao He; Bin Huang; Xiao Bin Ji; Gang Li; Hai Bo Li; Chun Xiu Liu; Huai Min Liu; Qiu Mei Ma; Xiang Ma; Ya Jun Mao; Ze Pu Mao; Xiao Hu Mo; Jin Fa Qiu; Sheng Sen Sun; Ji Ke Wang; Liang Liang Wang; Shuo Pin Wen; Ling Hui Wu; Yu Guang Xie; Ming Yang; Zheng Yun You; Guo Wei Yu; Chang Zheng Yuan; Ye Yuan; Shi Lei Zang; Chang Chun Zhang; Jian Yong Zhang; Ling Zhang; Xue Yao Zhang; Yao Zhang; Zhi Peng Zheng; Yong Sheng Zhu; Jia Heng Zou

Search for D⁰-D⁰ mixing with double-layer TOF at BESIII

Yong Zhao Sun
, Kang Lin He
, Wei Dong Li
, Jian Ming Bian
, Guo Fu Cao
, Zi Yan Deng
, Miao He
, Bin Huang
, Xiao Bin Ji
, Gang Li
, Hai Bo Li
, Chun Xiu Liu
, Huai Min Liu
, Qiu Mei Ma
, Xiang Ma
, Ya Jun Mao
, Ze Pu Mao
, Xiao Hu Mo
, Jin Fa Qiu
, Sheng Sen Sun

Ji Ke Wang, Liang Liang Wang, Shuo Pin Wen, Ling Hui Wu, Yu Guang Xie, Ming Yang, Zheng Yun You, Guo Wei Yu, Chang Zheng Yuan, Ye Yuan, Shi Lei Zang, Chang Chun Zhang, Jian Yong Zhang, Ling Zhang, Xue Yao Zhang, Yao Zhang, Zhi Peng Zheng, Yong Sheng Zhu, Jia Heng Zou

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

The decay of D⁰ → K^-π⁺ is a golden channel in the study of D⁰-D̄⁰ 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 (to) with TOF measurements in multiple charged tracks event at BESIII. After the to extracting algorithm, the time resolution of double-layer TOF reduced from ∼78ps to ∼64ps, the upper limit of D ⁰-D̄⁰ mixing rate at 95% CL can be improved by a factor of 7% in 20fb^-1 ψ(3770) data.

Original language	English (US)
Pages (from-to)	423-430
Number of pages	8
Journal	Kao Neng Wu Li Yu Ho Wu Li/High Energy Physics and Nuclear Physics
Volume	31
Issue number	5
State	Published - May 2007

Keywords

D-D mixing
D→K π particle identification
Event start time
TOF

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Sun, Y. Z., He, K. L., Li, W. D., Bian, J. M., Cao, G. F., Deng, Z. Y., He, M., Huang, B., Ji, X. B., Li, G., Li, H. B., Liu, C. X., Liu, H. M., Ma, Q. M., Ma, X., Mao, Y. J., Mao, Z. P., Mo, X. H., Qiu, J. F., ... Zou, J. H. (2007). Search for D⁰-D⁰ mixing with double-layer TOF at BESIII. Kao Neng Wu Li Yu Ho Wu Li/High Energy Physics and Nuclear Physics, 31(5), 423-430.

Sun, YZ, He, KL, Li, WD, Bian, JM, Cao, GF, Deng, ZY, He, M, Huang, B, Ji, XB, Li, G, Li, HB, Liu, CX, Liu, HM, Ma, QM, Ma, X, Mao, YJ, Mao, ZP, Mo, XH, Qiu, JF, Sun, SS, Wang, JK, Wang, LL, Wen, SP, Wu, LH, Xie, YG, Yang, M, You, ZY, Yu, GW, Yuan, CZ, Yuan, Y, Zang, SL, Zhang, CC, Zhang, JY, Zhang, L, Zhang, XY, Zhang, Y, Zheng, ZP, Zhu, YS & Zou, JH 2007, 'Search for D⁰-D⁰ mixing with double-layer TOF at BESIII', Kao Neng Wu Li Yu Ho Wu Li/High Energy Physics and Nuclear Physics, vol. 31, no. 5, pp. 423-430.

@article{14524c61517941d690379aada69649f9,

title = "Search for D0-D0 mixing with double-layer TOF at BESIII",

abstract = "The decay of D0 → K-π+ is a golden channel in the study of D0-{\=D}0 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 (to) with TOF measurements in multiple charged tracks event at BESIII. After the to extracting algorithm, the time resolution of double-layer TOF reduced from ∼78ps to ∼64ps, the upper limit of D 0-{\=D}0 mixing rate at 95\% CL can be improved by a factor of 7\% in 20fb-1 ψ(3770) data.",

keywords = "D-D mixing, D→K π particle identification, Event start time, TOF",

author = "Sun, \{Yong Zhao\} and He, \{Kang Lin\} and Li, \{Wei Dong\} and Bian, \{Jian Ming\} and Cao, \{Guo Fu\} and Deng, \{Zi Yan\} and Miao He and Bin Huang and Ji, \{Xiao Bin\} and Gang Li and Li, \{Hai Bo\} and Liu, \{Chun Xiu\} and Liu, \{Huai Min\} and Ma, \{Qiu Mei\} and Xiang Ma and Mao, \{Ya Jun\} and Mao, \{Ze Pu\} and Mo, \{Xiao Hu\} and Qiu, \{Jin Fa\} and Sun, \{Sheng Sen\} and Wang, \{Ji Ke\} and Wang, \{Liang Liang\} and Wen, \{Shuo Pin\} and Wu, \{Ling Hui\} and Xie, \{Yu Guang\} and Ming Yang and You, \{Zheng Yun\} and Yu, \{Guo Wei\} and Yuan, \{Chang Zheng\} and Ye Yuan and Zang, \{Shi Lei\} and Zhang, \{Chang Chun\} and Zhang, \{Jian Yong\} and Ling Zhang and Zhang, \{Xue Yao\} and Yao Zhang and Zheng, \{Zhi Peng\} and Zhu, \{Yong Sheng\} and Zou, \{Jia Heng\}",

year = "2007",

month = may,

language = "English (US)",

volume = "31",

pages = "423--430",

journal = "Kao Neng Wu Li Yu Ho Wu Li/High Energy Physics and Nuclear Physics",

issn = "0254-3052",

publisher = "Science Press",

number = "5",

}

TY - JOUR

T1 - Search for D0-D0 mixing with double-layer TOF at BESIII

AU - Sun, Yong Zhao

AU - He, Kang Lin

AU - Li, Wei Dong

AU - Bian, Jian Ming

AU - Cao, Guo Fu

AU - Deng, Zi Yan

AU - He, Miao

AU - Huang, Bin

AU - Ji, Xiao Bin

AU - Li, Gang

AU - Li, Hai Bo

AU - Liu, Chun Xiu

AU - Liu, Huai Min

AU - Ma, Qiu Mei

AU - Ma, Xiang

AU - Mao, Ya Jun

AU - Mao, Ze Pu

AU - Mo, Xiao Hu

AU - Qiu, Jin Fa

AU - Sun, Sheng Sen

AU - Wang, Ji Ke

AU - Wang, Liang Liang

AU - Wen, Shuo Pin

AU - Wu, Ling Hui

AU - Xie, Yu Guang

AU - Yang, Ming

AU - You, Zheng Yun

AU - Yu, Guo Wei

AU - Yuan, Chang Zheng

AU - Yuan, Ye

AU - Zang, Shi Lei

AU - Zhang, Chang Chun

AU - Zhang, Jian Yong

AU - Zhang, Ling

AU - Zhang, Xue Yao

AU - Zhang, Yao

AU - Zheng, Zhi Peng

AU - Zhu, Yong Sheng

AU - Zou, Jia Heng

PY - 2007/5

Y1 - 2007/5

N2 - The decay of D0 → K-π+ is a golden channel in the study of D0-D̄0 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 (to) with TOF measurements in multiple charged tracks event at BESIII. After the to extracting algorithm, the time resolution of double-layer TOF reduced from ∼78ps to ∼64ps, the upper limit of D 0-D̄0 mixing rate at 95% CL can be improved by a factor of 7% in 20fb-1 ψ(3770) data.

AB - The decay of D0 → K-π+ is a golden channel in the study of D0-D̄0 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 (to) with TOF measurements in multiple charged tracks event at BESIII. After the to extracting algorithm, the time resolution of double-layer TOF reduced from ∼78ps to ∼64ps, the upper limit of D 0-D̄0 mixing rate at 95% CL can be improved by a factor of 7% in 20fb-1 ψ(3770) data.

KW - D-D mixing

KW - D→K π particle identification

KW - Event start time

KW - TOF

UR - https://www.scopus.com/pages/publications/34347366297

UR - https://www.scopus.com/pages/publications/34347366297#tab=citedBy

M3 - Article

AN - SCOPUS:34347366297

SN - 0254-3052

VL - 31

SP - 423

EP - 430

JO - Kao Neng Wu Li Yu Ho Wu Li/High Energy Physics and Nuclear Physics

JF - Kao Neng Wu Li Yu Ho Wu Li/High Energy Physics and Nuclear Physics

IS - 5

ER -

Search for D⁰-D⁰ mixing with double-layer TOF at BESIII

Abstract

Keywords

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