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Measurement of the difference in CP-violating asymmetries in D0?K +K - and D0?p +p - decays at CDF

Abstract: We report a measurement of the difference (ACP) between time-integrated CP-violating asymmetries in D0 ! KþK and D0 ! þ decays reconstructed in the full data set of proton-antiproton collisions collected by the Collider Detector at Fermilab, corresponding to 9:7 fb1 of integrated luminosity. The strong decay Dþ ! D0þ is used to identify the charm meson at production as D0 or D 0. We measure ACP ¼ ½0:62 0:21ðstatÞ 0:10ðsystÞ%, which differs from zero by 2.7 Gaussian standard deviations. This result supports similar evidence for CP violation in charm-quark decays obtained in proton-proton collisions.

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

 Autoría: Aaltonen T., Alvarez 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 Letters (2012) Volume 109, Issue 11, article number 111801

Editorial: American Physical Society

 Fecha de publicación: 01/09/2012

Nº de páginas: 8

Tipo de publicación: Artículo de Revista

 DOI: 10.1103/PhysRevLett.109.111801

ISSN: 0031-9007,1079-7114

Url de la publicación: https://doi.org/10.1103/PhysRevLett.109.111801

Autores/as

AALTONEN, T.

BARBARA ALVAREZ GONZALEZ

BRUNO CASAL LARAÑA

FRANCISCO JAVIER CUEVAS MAESTRO

JOSE ENRIQUE PALENCIA CORTEZON