A precise determination of the top-quark pole mass

被引：11
作者：
Wang, Sheng-Quan [1 ]
Wu, Xing-Gang [2 ]
Si, Zong-Guo [3 ]
Brodsky, Stanley J. [4 ]
机构：
[1] Guizhou Minzu Univ, Sch Sci, Guiyang 550025, Guizhou, Peoples R China
[2] Chongqing Univ, Dept Phys, Chongqing 401331, Peoples R China
[3] Shandong Univ, Dept Phys, Jinan 250100, Shandong, Peoples R China
[4] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94039 USA
来源：
EUROPEAN PHYSICAL JOURNAL C | 2018年 / 78卷 / 03期
关键词：
PRODUCTION CROSS-SECTION; B-TAGGED JETS; E-MU EVENTS; PP COLLISIONS; DILEPTON EVENTS; QCD CORRECTIONS; PAIR PRODUCTION; T(T)OVER-BAR; TEV; ROOT-S=7;
D O I：
10.1140/epjc/s10052-018-5688-1
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
The Principle of Maximum Conformality (PMC) provides a systematic way to eliminate the renormalization scheme and renormalization scale uncertainties for high-energy processes. We have observed that by applying PMC scale setting, one obtains comprehensive and self-consistent pQCD predictions for the top-quark pair total cross section and the top-quark pair forward-backward asymmetry in agreement with the measurements at the Tevatron and LHC. As a step forward, in the present paper, we determine the top-quark pole mass via a detailed comparison of the top-quark pair cross section with the measurements at the Tevatron and LHC. The results for the top-quark pole mass are m(t) = 174.6(-3.2)(+3.2) GeV for the Tevatron with root S = 1.96 TeV, m(t) = 173.7 +/- 1.5 and 174.2 +/- 1.7 GeV for the LHC with root S = 7 and 8 TeV, respectively. Those predictions agree with the average, 173.34 +/- 0.76 GeV, obtained from various collaborations via direct measurements. The consistency of the pQCD predictions using the PMC with all of the collider measurements at different energies provides an important verification of QCD.
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页数：9
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