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Measurement of the leptonic asymmetry in tt? events produced in pp? collisions at ?s=1.96 TeV

Abstract: We measure the asymmetry in the charge-weighted rapidity qy? of the lepton in semileptonic t¯t decays recorded with the CDF II detector using the full Tevatron Run II sample, corresponding to an integrated luminosity of 9.4??fb?1. A parametrization of the asymmetry as a function of qy? is used to correct for the finite acceptance of the detector and recover the production-level asymmetry. The result of A?FB=0.094+0.032?0.029 is to be compared to the standard model next-to-leading-order prediction of A?FB=0.038±0.003.

 Autoría: Aaltonen T., Amerio S., Amidei D., Anastassov A., Annovi A., Antos J., Apollinari G., Appel J.A., Arisawa T., Artikov A., Asaadi J., Ashmanskas W., Auerbach B., Aurisano A., Azfar F., Badgett W., Bae T., Barbaro-Galtieri A., Barnes V.E., Barnett B.A., Barria P., Bartos P., Bauce M., Bedeschi F., Behari S., Bellettini G., Bellinger J., Benjamin D., Beretvas A., Bhatti A., Bland K.R., Blumenfeld B., Bocci A., Bodek A., Bortoletto

 Fuente: Physical Review D, 2013, 88, 072003

 Editorial: American Physical Society

 Año de publicación: 2013

 Nº de páginas: 12

 Tipo de publicación: Artículo de Revista

 DOI: 10.1103/PhysRevD.88.072003

 ISSN: 1550-7998,1550-2368,2470-0010,2470-0029

 Url de la publicación: https://doi.org/10.1103/PhysRevD.88.072003

Autoría

AALTONEN, T.

BRUNO CASAL LARAÑA

FRANCISCO JAVIER CUEVAS MAESTRO

JOSE ENRIQUE PALENCIA CORTEZON