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Measurement of CP-violation asymmetries in D0?KS0p +p -

Abstract: We report a measurement of time-integrated CP-violation asymmetries in the resonant substructure of the three-body decay D0?K0S?+?? using CDF II data corresponding to 6.0 fb?1 of integrated luminosity from Tevatron p¯p collisions at ?s=1.96 TeV. The charm mesons used in this analysis come from D*+(2010)?D0?+ and D*?(2010)?¯¯¯D0??, where the production flavor of the charm meson is determined by the charge of the accompanying pion. We apply a Dalitz-amplitude analysis for the description of the dynamic decay structure and use two complementary approaches, namely, a full Dalitz-plot fit employing the isobar model for the contributing resonances and a model-independent bin-by-bin comparison of the D0 and ¯¯¯D0 Dalitz plots. We find no CP-violation effects and measure an asymmetry of ACP=(?0.05±0.57(stat)±0.54(syst))% for the overall integrated CP-violation asymmetry, consistent with the standard model prediction.

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

 Autoría: Aaltonen T., Ãlvarez González B., 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., Bisello D., Bizjak I., Bland K.R., Bl

 Fuente: Physical Review D - Particles, Fields, Gravitation and Cosmology, 2012, 86(3), 032007

Editorial: American Physical Society

 Fecha de publicación: 01/08/2012

Nº de páginas: 15

Tipo de publicación: Artículo de Revista

 DOI: 10.1103/PhysRevD.86.032007

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

Url de la publicación: https://doi.org/10.1103/PhysRevD.86.032007

Autoría

AALTONEN, T.

BARBARA ALVAREZ GONZALEZ

BRUNO CASAL LARAÑA

FRANCISCO JAVIER CUEVAS MAESTRO

JOSE ENRIQUE PALENCIA CORTEZON