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A precise determination of the top-quark pole mass
- Source :
- European Physical Journal C: Particles and Fields, Vol 78, Iss 3, Pp 1-9 (2018), European Physical Journal C
- Publication Year :
- 2018
- Publisher :
- Springer Science and Business Media LLC, 2018.
-
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 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 $m_t=174.6^{+3.1}_{-3.2}$ GeV for the Tevatron with $\sqrt{S}=1.96$ TeV, $m_t=173.7\pm1.5$ GeV and $174.2\pm1.7$ GeV for the LHC with $\sqrt{S} = 7$ TeV and $8$ TeV, respectively. Those predictions agree with the average, $173.34\pm0.76$ 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.<br />Comment: 10 pages, 6 figures. Revised version to be published in Eur.Phys.J.C
- Subjects :
- Particle physics
Top quark
Physics and Astronomy (miscellaneous)
media_common.quotation_subject
Tevatron
FOS: Physical sciences
lcsh:Astrophysics
Scale (descriptive set theory)
01 natural sciences
Asymmetry
law.invention
Renormalization
High Energy Physics - Phenomenology (hep-ph)
law
lcsh:QB460-466
0103 physical sciences
lcsh:Nuclear and particle physics. Atomic energy. Radioactivity
Nuclear Experiment
010306 general physics
Collider
Engineering (miscellaneous)
media_common
Quantum chromodynamics
Physics
Large Hadron Collider
010308 nuclear & particles physics
High Energy Physics::Phenomenology
High Energy Physics - Phenomenology
lcsh:QC770-798
High Energy Physics::Experiment
Subjects
Details
- ISSN :
- 14346052 and 14346044
- Volume :
- 78
- Database :
- OpenAIRE
- Journal :
- The European Physical Journal C
- Accession number :
- edsair.doi.dedup.....5a3f18162db94a5e4d654dbfad26e89e