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Alvarez, E.; Sanchez Vietto, J.I.; Szynkman, A. "Top-antitop resonance searches beyond 1 TeV" (2013) Physical Review D - Particles, Fields, Gravitation and Cosmology. 87(5)
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Abstract:

We perform a general parton level analysis for the search of heavy resonant states in the production of tt̄ 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 (β) and transverse (pT) momenta of the tt̄ pair and the scattering angle (θ) in the center of mass reference frame. We observe that β is replaced by θ 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 TeV and show the improvement in the sensitivity of the signal when cuts on θ are imposed. © 2013 American Physical Society.

Registro:

Documento: Artículo
Título:Top-antitop resonance searches beyond 1 TeV
Autor:Alvarez, E.; Sanchez Vietto, J.I.; Szynkman, A.
Filiación:Departamento de Física, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 1, 1428 Buenos Aires, Argentina
IFLP, CONICET-Departamento de Física, Universidad Nacional de la Plata, C.C. 67, 1900 La Plata, Argentina
Año:2013
Volumen:87
Número:5
DOI: http://dx.doi.org/10.1103/PhysRevD.87.054015
Título revista:Physical Review D - Particles, Fields, Gravitation and Cosmology
Título revista abreviado:Phys Rev D Part Fields Gravit Cosmol
ISSN:15507998
CODEN:PRVDA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15507998_v87_n5_p_Alvarez

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Citas:

---------- APA ----------
Alvarez, E., Sanchez Vietto, J.I. & Szynkman, A. (2013) . Top-antitop resonance searches beyond 1 TeV. Physical Review D - Particles, Fields, Gravitation and Cosmology, 87(5).
http://dx.doi.org/10.1103/PhysRevD.87.054015
---------- CHICAGO ----------
Alvarez, E., Sanchez Vietto, J.I., Szynkman, A. "Top-antitop resonance searches beyond 1 TeV" . Physical Review D - Particles, Fields, Gravitation and Cosmology 87, no. 5 (2013).
http://dx.doi.org/10.1103/PhysRevD.87.054015
---------- MLA ----------
Alvarez, E., Sanchez Vietto, J.I., Szynkman, A. "Top-antitop resonance searches beyond 1 TeV" . Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 87, no. 5, 2013.
http://dx.doi.org/10.1103/PhysRevD.87.054015
---------- VANCOUVER ----------
Alvarez, E., Sanchez Vietto, J.I., Szynkman, A. Top-antitop resonance searches beyond 1 TeV. Phys Rev D Part Fields Gravit Cosmol. 2013;87(5).
http://dx.doi.org/10.1103/PhysRevD.87.054015