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

Journal Article · · European Physical Journal. C, Particles and Fields
 [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)

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.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
No. 11547010; No. 11625520; No. 11705033; No. 11325; No. 2016GZ42963; No. KY[2016]028; No. KY[2017]067; No. AC02-76SF00515
OSTI ID:
1427308
Alternate ID(s):
OSTI ID: 1438555
Journal Information:
European Physical Journal. C, Particles and Fields, Vol. 78, Issue 3; ISSN 1434-6044
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 7 works
Citation information provided by
Web of Science

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Cited By (3)


Figures / Tables (11)