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Title: A precise determination of the top-quark pole mass

Abstract

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 work, 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 mt=174.6$$+3.1\atop{-3.2}$$ GeV for the Tevatron with $$\sqrt{s}$$ =1.96 TeV, mt=173.7±1.5 and 174.2±1.7 GeV for the LHC with $$\sqrt{s}$$ =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.

Authors:
 [1]; ORCiD logo [2];  [3];  [4]
  1. Guizhou Minzu Univ., Guiyang (China). School of Science
  2. Chongqing Univ. (China). Dept. of Physics
  3. Shandong Univ., Jinan (China). Dept. of Physics
  4. SLAC National Accelerator Lab., Menlo Park, CA (United States)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1427308
Alternate Identifier(s):
OSTI ID: 1438555
Grant/Contract Number:  
No. 11547010; No. 11625520; No. 11705033; No. 11325; No. 2016GZ42963; No. KY[2016]028; No. KY[2017]067; No. AC02-76SF00515
Resource Type:
Published Article
Journal Name:
European Physical Journal. C, Particles and Fields
Additional Journal Information:
Journal Name: European Physical Journal. C, Particles and Fields Journal Volume: 78 Journal Issue: 3; Journal ID: ISSN 1434-6044
Publisher:
Springer
Country of Publication:
Germany
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Wang, Sheng-Quan, Wu, Xing-Gang, Si, Zong-Guo, and Brodsky, Stanley J. A precise determination of the top-quark pole mass. Germany: N. p., 2018. Web. doi:10.1140/epjc/s10052-018-5688-1.
Wang, Sheng-Quan, Wu, Xing-Gang, Si, Zong-Guo, & Brodsky, Stanley J. A precise determination of the top-quark pole mass. Germany. doi:10.1140/epjc/s10052-018-5688-1.
Wang, Sheng-Quan, Wu, Xing-Gang, Si, Zong-Guo, and Brodsky, Stanley J. Tue . "A precise determination of the top-quark pole mass". Germany. doi:10.1140/epjc/s10052-018-5688-1.
@article{osti_1427308,
title = {A precise determination of the top-quark pole mass},
author = {Wang, Sheng-Quan and Wu, Xing-Gang and Si, Zong-Guo and Brodsky, Stanley J.},
abstractNote = {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 work, 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 mt=174.6$+3.1\atop{-3.2}$ GeV for the Tevatron with $\sqrt{s}$ =1.96 TeV, mt=173.7±1.5 and 174.2±1.7 GeV for the LHC with $\sqrt{s}$ =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.},
doi = {10.1140/epjc/s10052-018-5688-1},
journal = {European Physical Journal. C, Particles and Fields},
number = 3,
volume = 78,
place = {Germany},
year = {2018},
month = {3}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1140/epjc/s10052-018-5688-1

Citation Metrics:
Cited by: 2 works
Citation information provided by
Web of Science

Figures / Tables:

Table I Table I: The NNLO top-quark pair production cross-sections for the Tevatron and LHC (in unit: pb), comparing conventional versus PMC scale settings. Here all production channels have been summed up. Three typical choices for the initial renormalization scales µr = mt/2, mt and 2mt have been adopted.

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