IFIBA   22255
INSTITUTO DE FISICA DE BUENOS AIRES
Unidad Ejecutora - UE
artículos
Título:
Improving top quark induced charge asymmetries at the LHC using ttbar transverse momentum
Autor/es:
EZEQUIEL ALVAREZ
Revista:
PHYSICAL REVIEW D - PARTICLE AND FILDS
Editorial:
APS
Referencias:
Lugar: Oak Ridge; Año: 2012 vol. 85 p. 94026 - 94035
ISSN:
0556-2821
Resumen:
We study how the significance of top quark induced charge asymmetries at the LHC may be enhanced exploiting the tt̅
total transverse momentum to enrich the fraction of
quark-fusion events in the sample. We combine this variable with
previous variables related to the boost and the invariant mass of the tt̅
pair to find an optimum cut which maximizes the significance of
the asymmetry when systematic and statistic errors are taken into
account. We find that including the tt̅
transverse momentum in the analysis of the expected 2012 LHC
data provides a considerable enhancement in the significance of the
asymmetry.