Searches for New Physics Using the T(t)over-Bar Invariant Mass Distribution in Pp Collisions at Root S=8 Tev
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Date
2013
Authors
Karapınar, Güler
Journal Title
Journal ISSN
Volume Title
Publisher
American Physical Society
Open Access Color
HYBRID
Green Open Access
Yes
OpenAIRE Downloads
54
OpenAIRE Views
140
Publicly Funded
Yes
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Top 1%
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Top 10%
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Average
Abstract
Searches for anomalous top quark-antiquark production are presented, based on pp collisions at root s = 8 TeV. The data, corresponding to an integrated luminosity of 19.7 fb(-1), were collected with the CMS detector at the LHC. The observed t (t) over bar invariant mass spectrum is found to be compatible with the standard model prediction. Limits on the production cross section times branching fraction probe, for the first time, a region of parameter space for certain models of new physics not yet constrained by precision measurements.
Description
Keywords
550, final state: ((n)jet), LHC. CMS; new physics; tt-bar, Invariant mass distribution, LHC Coll, 950, PARTICLE PHYSICS; LARGE HADRON COLLIDER; CMS, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), mass spectrum: (top anti-top), Top quarks production, Parameter spaces, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Branching fractions, info:eu-repo/classification/ddc/530, Z': hadronic decay, Fisica delle particelle, 8000 GeV-cms, CMS, new physics, Physics, STANDARD MODEL; DECAY; HIERARCHY; BOSON; LHC, ddc:530, BOSON, p p collision, 004, channel cross section: branching ratio: upper limit, The standard model, HIERARCHY, CERN LHC Coll, track data analysis: jet, Physique des particules élémentaires, LHC; CMS; HEP, Medicine (all); Physics and Astronomy (all), PARTICLE PHYSICS, LHC, top: pair production, physics, p p: scattering, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], cms, mass: lower limit, STANDARD MODEL, FOS: Physical sciences, final state: ((n)jet lepton), 530, Physics and Astronomy (all), resonance: search for, STANDARD MODEL; HIERARCHY; LHC; p p collisions; CMS; Top quarks production, Integrated luminosity, info:eu-repo/classification/ddc/550, Mass spectrometry, Precision measurement, The standard model, Mass spectrometry, Tellurium compounds,references, Física, LARGE HADRON COLLIDER, gluon: Kaluza-Klein, Production cross section, Invariant-mass spectra, QC Physics / fizika, Tellurium compounds,references, DECAY, top: boosted particle
Fields of Science
01 natural sciences, 0103 physical sciences
Citation
WoS Q
Q1
Scopus Q
Q1
Source
Physical Review Letters
Volume
111
Issue
21
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End Page
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