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Title: Running of the top quark mass from proton-proton collisions at $$\sqrt{s} =$$ 13 TeV

Abstract

The running of the top quark mass is experimentally investigated for the first time. The mass of the top quark in the modified minimal subtraction ($$\mathrm{\overline{MS}}$$) renormalization scheme is extracted from a comparison of the differential top quark-antiquark ($$\mathrm{t\overline{t}}$$) cross section as a function of the invariant mass of the $$\mathrm{t\overline{t}}$$ system to next-to-leading-order theoretical predictions. The differential cross section is determined at the parton level by means of a maximum-likelihood fit to distributions of final-state observables. The analysis is performed using $$\mathrm{t\overline{t}}$$ candidate events in the e$$^\pm\mu^\mp$$ channel in proton-proton collision data at a centre-of-mass energy of 13 TeV recorded by the CMS detector at the CERN LHC in 2016, corresponding to an integrated luminosity of 35.9 fb$$^{-1}$$. The extracted running is found to be compatible with the scale dependence predicted by the corresponding renormalization group equation. In this analysis, the running is probed up to a scale of the order of 1 TeV.

Authors:
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Org.:
CMS
OSTI Identifier:
1568847
Report Number(s):
FERMILAB-PUB-19-497-CMS; arXiv:1909.09193; CMS-TOP-19-007; CERN-EP-2019-189
oai:inspirehep.net:1755300
DOE Contract Number:  
AC02-07CH11359
Resource Type:
Journal Article
Journal Name:
TBD
Additional Journal Information:
Journal Name: TBD
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Sirunyan, Albert M, and et al. Running of the top quark mass from proton-proton collisions at $\sqrt{s} =$ 13 TeV. United States: N. p., 2019. Web.
Sirunyan, Albert M, & et al. Running of the top quark mass from proton-proton collisions at $\sqrt{s} =$ 13 TeV. United States.
Sirunyan, Albert M, and et al. Thu . "Running of the top quark mass from proton-proton collisions at $\sqrt{s} =$ 13 TeV". United States. https://www.osti.gov/servlets/purl/1568847.
@article{osti_1568847,
title = {Running of the top quark mass from proton-proton collisions at $\sqrt{s} =$ 13 TeV},
author = {Sirunyan, Albert M and et al.},
abstractNote = {The running of the top quark mass is experimentally investigated for the first time. The mass of the top quark in the modified minimal subtraction ($\mathrm{\overline{MS}}$) renormalization scheme is extracted from a comparison of the differential top quark-antiquark ($\mathrm{t\overline{t}}$) cross section as a function of the invariant mass of the $\mathrm{t\overline{t}}$ system to next-to-leading-order theoretical predictions. The differential cross section is determined at the parton level by means of a maximum-likelihood fit to distributions of final-state observables. The analysis is performed using $\mathrm{t\overline{t}}$ candidate events in the e$^\pm\mu^\mp$ channel in proton-proton collision data at a centre-of-mass energy of 13 TeV recorded by the CMS detector at the CERN LHC in 2016, corresponding to an integrated luminosity of 35.9 fb$^{-1}$. The extracted running is found to be compatible with the scale dependence predicted by the corresponding renormalization group equation. In this analysis, the running is probed up to a scale of the order of 1 TeV.},
doi = {},
journal = {TBD},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {9}
}