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Angular correlations in top quark decays in standard model extensions

Batebi, S. ; Etesami, S. M. ; Mohammadi-Najafabadi, M.

Physical review. D, Particles and fields, 2011-03, Vol.83 (5), Article 057502

United States

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Título:
Angular correlations in top quark decays in standard model extensions
Autor: Batebi, S. ; Etesami, S. M. ; Mohammadi-Najafabadi, M.
Assuntos: ACCELERATORS ; ANGULAR CORRELATION ; ANGULAR DISTRIBUTION ; ANGULAR MOMENTUM ; BOSONS ; CERN LHC ; COLOR MODEL ; COMPOSITE MODELS ; CORRELATIONS ; CROSS SECTIONS ; CYCLIC ACCELERATORS ; DECAY ; DISTRIBUTION ; ELEMENTARY PARTICLES ; EXTRACTION ; FERMIONS ; FIELD THEORIES ; GRAND UNIFIED THEORY ; HIGGS BOSONS ; HIGGS MODEL ; LEPTONS ; MATHEMATICAL MODELS ; PARTICLE DECAY ; PARTICLE MODELS ; PARTICLE PROPERTIES ; PHYSICS OF ELEMENTARY PARTICLES AND FIELDS ; POSTULATED PARTICLES ; QUANTUM FIELD THEORY ; QUARK MODEL ; QUARKS ; SEPARATION PROCESSES ; SPIN ; STANDARD MODEL ; STORAGE RINGS ; SYNCHROTRONS ; T CHANNEL ; T QUARKS ; TOP PARTICLES ; UNIFIED GAUGE MODELS
É parte de: Physical review. D, Particles and fields, 2011-03, Vol.83 (5), Article 057502
Descrição: The CMS Collaboration at the CERN LHC has searched for the t-channel single top quark production using the spin correlation of the t-channel. The signal extraction and cross section measurement rely on the angular distribution of the charged lepton in the top quark decays, the angle between the charged lepton momentum and top spin in the top rest frame. The behavior of the angular distribution is a distinct slope for the t-channel single top (signal) while it is flat for the backgrounds. In this Brief Report, we investigate the contributions which this spin correlation may receive from a two-Higgs doublet model, a top-color assisted technicolor (TC2) and the noncommutative extension of the standard model.
Editor: United States
Idioma: Inglês

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Angular correlations in top quark decays in standard model extensions

Batebi, S. ; Etesami, S. M. ; Mohammadi-Najafabadi, M.

United States

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