Observation of Top Quark Production in Proton-Nucleus Collisions
Name
PhysRevLett.119.242001.pdf
Size
538.78 KB
Format
Adobe PDF
Checksum (MD5)
1666baa078022076b6b9cbe40fe67aa0
Author(s)
Sirunyan, A. M.
Tumasyan, A.
Adam, W.
Ambrogi, F.
Asilar, E.
Bergauer, T.
Brandstetter, J.
Brondolin, E.
Dragicevic, M.
Erö, J.
Date Issued
December 2017
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Sirunyan, A. M. et al. "Observation of Top Quark Production in Proton-Nucleus Collisions." Physical Review Letters 119, 24 (December 2017): 242001 © 2017 CERN, for the CMS Collaboration
Version
Final published version
Abstract
The first observation of top quark production in proton-nucleus collisions is reported using proton-lead data collected by the CMS experiment at the CERN LHC at a nucleon-nucleon center-of-mass energy of √s[subscript NN] = 8.16 TeV. The measurement is performed using events with exactly one isolated electron or muon candidate and at least four jets. The data sample corresponds to an integrated luminosity of 174 nb⁻¹. The significance of the tt[over ¯] signal against the background-only hypothesis is above 5 standard deviations. The measured cross section is σ[subscript tt][over ¯]=45±8 nb, consistent with predictions from perturbative quantum chromodynamics.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Creative Commons Attribution
Persistent DSpace Link
DOI of Published Version
http://dx.doi.org/10.1103/PhysRevLett.119.242001
