Measurement of the charge asymmetry in top quark pair production in pp collisions at root s=8 TeV using a template method

Title
Measurement of the charge asymmetry in top quark pair production in pp collisions at root s=8 TeV using a template method
Author
김태정
Keywords
PROTON-PROTON COLLISIONS; MOMENTA
Issue Date
2016-02
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW D, v. 93, NO 3, Article number 034014, Page. 1-1
Abstract
The charge asymmetry in the production of top quark and antiquark pairs is measured in proton-proton collisions at a center-of-mass energy of 8 TeV. The data, corresponding to an integrated luminosity of 19.6 fb(-1), were collected by the CMS experiment at the LHC. Events with a single isolated electron or muon, and four or more jets, at least one of which is likely to have originated from hadronization of a bottom quark, are selected. A template technique is used to measure the asymmetry in the distribution of differences in the top quark and antiquark absolute rapidities. The measured asymmetry is A(c)(y) = [0.33 +/- 0.26(stat) +/- 0.33(syst)]%, which is the most precise result to date. The results are compared to calculations based on the standard model and on several beyond-the-standard-model scenarios.
URI
https://journals.aps.org/prd/abstract/10.1103/PhysRevD.93.034014http://hdl.handle.net/20.500.11754/31909
ISSN
2470-0010; 2470-0029
DOI
10.1103/PhysRevD.93.034014
Appears in Collections:
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > PHYSICS(물리학과) > Articles
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