Show simple item record Alvarez, Ezequiel Juan Ignacio Sanchez Vietto Alejandro Szynkman 2015-06-05T19:58:03Z 2013-03
dc.identifier.citation Alvarez, Ezequiel; Juan Ignacio Sanchez Vietto; Alejandro Szynkman; Top-antitop resonance searches beyond 1 TeV; Amer Physical Soc; Physical Review D; 3-2013; 1-11;
dc.identifier.issn 1550-7998
dc.description.abstract We perform a general parton level analysis for the search of heavy resonant states in the production of tt pairs at the LHC with an integrated luminosity of 30 fb^-1. We assume the existence of resonances that only couple to quarks and propose kinematic cuts in order to increase the number of events produced through quark annihilation. We study the interplay between different variables and their impact on the purity of the selected sample. We focus on the longitudinal (beta) and transverse (pT) momenta of the tt pair and the scattering angle (theta) in the center of mass reference frame. We observe that beta is replaced by theta as a suitable discriminating variable of quark-annihilation processes for invariant masses above 1 TeV. Finally, we illustrate the analysis with a gluon resonance of 1.5 TeVand show the improvement in the sensitivity of the signal when cuts on theta are imposed.
dc.format application/pdf
dc.language.iso eng
dc.publisher Amer Physical Soc
dc.rights info:eu-repo/semantics/openAccess
dc.subject TOP
dc.subject GLUON
dc.subject LHC
dc.subject.classification Ciencias Naturales y Exactas
dc.subject.classification Ciencias Físicas
dc.subject.classification Física de Partículas y Campos
dc.title Top-antitop resonance searches beyond 1 TeV
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion 2015-06-04T14:29:27Z
dc.journal.pagination 1-11
dc.journal.pais Estados Unidos
dc.journal.ciudad New York
dc.description.fil Fil: Alvarez, Ezequiel. Universidad de Buenos Aires. Facultad de Cs.exactas y Naturales; Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires; Argentina;
dc.description.fil Fil: Juan Ignacio Sanchez Vietto. Universidad de Buenos Aires. Facultad de Cs.exactas y Naturales; Argentina;
dc.description.fil Fil: Alejandro Szynkman. Universidad Nacional de la Plata. Facultad de Ciencias Exactas; Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - La Plata. Instituto de Fisica La Plata; Argentina;
dc.journal.title Physical Review D

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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)