A precise determination of the top-quark pole mass

Wang, Sheng-Quan; Wu, Xing-Gang; Si, Zong-Guo; Brodsky, Stanley J.

doi:10.1140/epjc/s10052-018-5688-1

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

Journal Article · Tue Mar 20 00:00:00 EDT 2018 · European Physical Journal. C, Particles and Fields

DOI:https://doi.org/10.1140/epjc/s10052-018-5688-1· OSTI ID:1427308

Wang, Sheng-Quan ^[1];

^[2]; Si, Zong-Guo ^[3]; Brodsky, Stanley J. ^[4]

Guizhou Minzu Univ., Guiyang (China). School of Science
Chongqing Univ. (China). Dept. of Physics
Shandong Univ., Jinan (China). Dept. of Physics
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 m_t=174.6$$+3.1\atop{-3.2}$$ GeV for the Tevatron with $$\sqrt{s}$$ =1.96 TeV, m_t=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.

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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, Journal Name: European Physical Journal. C, Particles and Fields Vol. 78 Journal Issue: 3; ISSN 1434-6044

Publisher:: SpringerCopyright Statement

Country of Publication:: Germany

Language:: English

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Cited by: 7 works

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