Re-fit of τ Mass Based on Improved Theoretical Calculations

WANG You-Kai; MO Xiao-Hu; YUAN Chang-Zheng; LIU Jue-Ping

Chinese Physics C> 2007, Vol. 31> Issue(4) : 325-331

Re-fit of τ Mass Based on Improved Theoretical Calculations

Institute of High Energy Physics, CAS, Beijing 100049, China2 School of Physics Science and Technology, Wuhan University, Wuhan 430072, China

Abstract
HTML
Reference
Related

PDF

Abstract：
Recently many theoretical calculations have been made for the cross section of e⁺e^－→τ⁺τ^－ near the threshold, the accuracy of which is up to 10^－4. Based on one of the calculations, the e μ-contained final state data are refitted by utilizing the technique once adopted by BES collaboration for τ mass measurement. The systematic uncertainties are analyzed again and the final result of τ mass is 1776.98+0.44+0.12－0.51－0.13MeV.

References

[1]

. ALEPH Collaboration(Schael S et al.). Phys. Report, 2005,421: 1912. BES Collaboration(BAI J Z et al.). Phys. Rev. Lett., 1992,69: 30213. BES Collaboration(BAI J Z et al.). HEP NP, 1992, 16:343(in Chinese)(BES合作组(白景芝等).高能物理与核物理,1992, 16: 343)4. BES Collaboration(BAI J Z et al.). Phys. Rev., 1996, D53:205. Voloshin M B. Topics in Tau Physics at a Tau-Charm Factory, Univ. Minnesota Preprint TPI-MINN-89/33-T, 19896. CLEO-c Collaboration. CLEO-c and CESR-c: A New Frontier of Weak and Strong Interactions, CLNS 2001, 17427. CHEN H S. BEPC//BES0 Project. Talk at ICHEP 2002,Amsterdam, Holland, July 24-31, 20028. Voloshin M B. Phys. Lett., 2003, B556: 1539. Smith B H, Voloshin M B. Phys. Lett., 1994, B324: 177;Phys. Lett., 1994, B333: 564, Errata10. Pich A. Perspectives on Tau-Charm Factory Physics. Proceedings of the 3rd Workshop on the Tau-Charm Factory.Marbella, Spain, 1993. Edited by Kirkby J and Kirkby R(Editions Frontieres, Gif-sur-Yvette), 1994. 76711. Eidelman S et al.(Particle Data Group). Phys. Lett., 2004,B592: 813, 83012. Ruiz-Femenía P, Pich A. Phys. Rev., 2001, D64: 05300113. Schwinger J. Particles, Sorces and Fields. (Volume II). 197314. Berestetskii V B, Lifshits E M, Pitaevskii L P. QuantumElectrodynamics. Pergamon, 198215. Kuraev E A, Fadin V S. Sov. J. Nucl. Phys., 1985, 41: 466;Altarelli G, Martinelli G. CERN, 1986, 86-02: 47; Nicrosini O, Trentadue L. Phys. Lett., 1987, B196: 551; Berends FA, Burgers G, Neerven W L. Nucl. Phys., 1988, B297: 429;304: 92116. Berends F A, Gaemers K J F, Gastmans R. Nucl. Phys.,1973, B57: 381; Berends F A, Komen G J. Phys. Lett.,1976, B63: 43217. Rodrigo G, Pich A, Santamaria A. 1997, hep-ph/9707747418. WANG P, YUAN C Z, MO X H et al. Phys. Lett., 2004,B593: 8919. Hikasa K et al.(Particle Data Group). Phys. Rev., 1992,D45: 1644, 165620. James F. MINUIT Function Minimization and Error Analysis Reference Manual(Version 94.1). Geneva, Switzerland.CERN21. MO Xiao-Hu, ZHU Yong-Sheng. HEP NP, 2003, 27(6):474-478(in Chinese)(莫晓虎,朱永生.高能物理与核物理,2003, 27(6): 474-478)22. WANG You-Kai, MO Xiao-Hu, YUAN Chang-Zheng et al.Statistical Optimization of High Accurate Measurement of Mass

[1]	CHEN Bin , CHEN Su-Ying , CHENG Jian , ZHANG Jing . High Precision Standard Testing System for DCCT. Chinese Physics C, 2008, 32(S1): 43-45.
[2]	JIA Duojie . Infrared Abelization of Yang-Mills Theory via Abelian Higgs Variables. Chinese Physics C, 2006, 30(3): 196-200.
[3]	GAO Zao-Cun , SUN Yang , CHEN Yong-Shou . Beta Decay Theory in the Projected Shell Model. Chinese Physics C, 2006, 30(S2): 65-67.
[4]	HAN Yin-Lu , HAN Jian , ZHANG Zheng-Jun . Theoretical Calculations for n+ ^63,65Cu Reactions. Chinese Physics C, 2005, 29(9): 866-870.
[5]	LI Jia-Xing , WANG Jian-Song , GUO Zhong-Yan , XIAO Guo-Qing , ZHAN Wen-Long , SUN Zhi-Yu , WANG Meng , HU Zheng-Guo , CHEN Li-Xin , LI Chen , MAO Rui-Shi . Fitting the Data of Exotic Structural Nuclear Total Reaction Cross Section with a Corrected Glauber Model. Chinese Physics C, 2004, 28(10): 1050-1054.
[6]	ZHANG Wei , MENG Jie , ZHANG Shuang-Quan . Production Cross Section of Superheavy Nuclei in Cold Fusion Reactions Based on the Relativistic Mean Field Theory. Chinese Physics C, 2004, 28(1): 61-68.
[7]	YANG Bin , ZHANG Jing-Shang , SUN Xiu-Quan . Model Calculation and Analysis of n+¹¹B Reactions below 20MeV. Chinese Physics C, 2001, 25(12): 1171-1177.
[8]	DONG Fang-Xiao , GO Liang , ZHOU Xian-Jian . Calculation of Total Cross Section for γγ→γZ Scattering at High Energy. Chinese Physics C, 2001, 25(4): 283-288.
[9]	GUO Wen-Jun , JIANG Huan-Qing , LIU Jian-Ye . Improved Glauber Theory and the Total Reaction Cross Section of the Nucleus-Nucleus Collision. Chinese Physics C, 2001, 25(11): 1092-1099.
[10]	GOU Liang , DONG Fang-Xiao , ZHOU Xian-Jian . Numerica Calculation for High Energy γγ→γγ Scattering Cross Sections. Chinese Physics C, 2001, 25(3): 188-192.
[11]	Chen Chang , Zhang Qinjian , Ma Jimao , Huang Xiuping , Yi Kai , Zheng Shuchen . Study of Properties of Helium-Based Gas Mixtures for Use ofLow Momentum and High Precision Measurement in Drift Chambers. Chinese Physics C, 1998, 22(9): 787-794.
[12]	Tong Guoliang , Huang Xiuping , Ma Jimao , Chen Chang , Zhang Qinjian , Wu Yigen , Yi Kai . Performance Estimation of a High Precision Central Drift Chamber Used to Detect Low Momentum Particles. Chinese Physics C, 1998, 22(3): 200-208.
[13]	Wu Jimin . A Discussion About Recent Numerical Results From the Calculation of the Glueball Masses on Lattice Gauge Theory. Chinese Physics C, 1996, 20(10): 894-899.
[14]	GAN Zai-Guo , HUANG Ye-Cheng . A Mass Formula with a Few Free Parameters and Nuclear Mass Calculations. Chinese Physics C, 1992, 16(2): 172-177.
[15]	CHEN Jia-Chao , CHEN Ke-Qin , MA Feng . The Calculation of Depth Distribution for Swift Ion-Radiated damage Energy. Chinese Physics C, 1991, 15(1): 59-65.
[16]	FENG Jun , SHEN Wen-Qing , WANG Bing , ZHU Yong-Tai , FENG En-Pu . PARAMETRIZED CALCULATION OF NUCLEAR TOTAL REACTION CROSS SECTION. Chinese Physics C, 1989, 13(5): 459-464.
[17]	ZHANG Zhen , SHEN Wen-Qing , ZHU Yong-Tai . THE CALCULATION OF THE CROSS SECTIONS OF THE COMPLETE FUSION AND THE NEUTRON EVAPORATION FOR HEAVY SYSTEM. Chinese Physics C, 1988, 12(6): 833-839.
[18]	LONG Ao , JIAO Tian-Shu , CHANG Li , CHANG Geng-Fu , DANG Jian-Rong , GUO Ke-Jun , ZHANG Chang-Shuan , WU Gui-Heng , YU Wen-Jie , ZHANG Guo-Bin , WANG Wen-Ling . MULTI-PROBE MAGNEIC FIELD MEASURING SYSTEM WITH HIGH PRECISION. Chinese Physics C, 1987, 11(3): 419-425.
[19]	LIU Jin-Ming , ZHENG Bo , GUO Shuo-Hong . QUARK MASS RENORMALIZATION IN LATTICE GAUGE THEORY (Ⅱ) BARYON MASS CALCULATION. Chinese Physics C, 1986, 10(1): 116-119.
[20]	WANG CHENG-SHING . NON-EQUILIBRIUM STATISTICAL THEORY OF NUCLEAR FISSION MASS DISTRIBUTION. Chinese Physics C, 1982, 6(2): 219-230.

Access

Get Citation

WANG You-Kai, MO Xiao-Hu, YUAN Chang-Zheng and LIU Jue-Ping. Re-fit of τ Mass Based on Improved Theoretical Calculations[J]. Chinese Physics C, 2007, 31(4): 325-331.

WANG You-Kai, MO Xiao-Hu, YUAN Chang-Zheng and LIU Jue-Ping. Re-fit of τ Mass Based on Improved Theoretical Calculations[J]. Chinese Physics C, 2007, 31(4): 325-331. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2006-07-25
Revised: 2006-09-12

Article Metric

Article Views(3024)
PDF Downloads(815)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Re-fit of τ Mass Based on Improved Theoretical Calculations

Corresponding author: WANG You-Kai,

Institute of High Energy Physics, CAS, Beijing 100049, China2 School of Physics Science and Technology, Wuhan University, Wuhan 430072, China

Received Date: 2006-07-25

Accepted Date: 2006-09-12

Available Online: 2007-04-05

Abstract: Recently many theoretical calculations have been made for the cross section of e⁺e^－→τ⁺τ^－ near the threshold, the accuracy of which is up to 10^－4. Based on one of the calculations, the e μ-contained final state data are refitted by utilizing the technique once adopted by BES collaboration for τ mass measurement. The systematic uncertainties are analyzed again and the final result of τ mass is 1776.98+0.44+0.12－0.51－0.13MeV.

HTML

Reference (1)

Re-fit of τ Mass Based on Improved Theoretical Calculations

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article