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Measurement of W-boson polarization in top-quark decay using the full CDF Run II data set

Abstract: We measure the polarization of W bosons from top-quark (t) decays into final states with a charged lepton and jets, t¯t?W+bW?¯b???bq¯q?¯b, using the full Run II data set collected by the CDF II detector, corresponding to an integrated luminosity of 8.7??fb?1. A model-independent method simultaneously determines the fraction of longitudinal (f0) and right-handed (f+) W bosons to yield f0=0.726±0.066(stat)±0.067(syst) and f+=?0.045±0.044(stat)±0.058(syst) with a correlation coefficient of ?0.69. Additional results are presented under various standard model assumptions. No significant discrepancies with the standard model are observed

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 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 - Particles, Fields, Gravitation and Cosmology 2013, 87, 031104(R)

Editorial: American Physical Society

 Año de publicación: 2013

Nº de páginas: 8

Tipo de publicación: Artículo de Revista

 DOI: 10.1103/PhysRevD.87.031104

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

Autoría

AALTONEN, T.

BRUNO CASAL LARAÑA

FRANCISCO JAVIER CUEVAS MAESTRO

JOSE ENRIQUE PALENCIA CORTEZON