Measurement of indirect CP asymmetries in D0 → KK+ and D0 → ππ+ decays using semileptonic B decays

R. Aaij, B. Adeva, M. Adinolfi, A. Affolder, Z. Ajaltouni, S. Akar, J. Albrecht, F. Alessio, M. Alexander, S. Ali, G. Alkhazov, P. Alvarez Cartelle, A. A. Alves, S. Amato, S. Amerio, Y. Amhis, L. An, L. Anderlini, J. Anderson, R. AndreassenM. Andreotti, J. E. Andrews, R. B. Appleby, O. Aquines Gutierrez, F. Archilli, A. Artamonov, M. Artuso, E. Aslanides, G. Auriemma, M. Baalouch, S. Bachmann, J. J. Back, A. Badalov, C. Baesso, W. Baldini, R. J. Barlow, C. Barschel, S. Barsuk, W. Barter, V. Batozskaya, V. Battista, A. Bay, L. Beaucourt, J. Beddow, F. Bedeschi, I. Bediaga, S. Belogurov, I. Belyaev, E. Ben-Haim, G. Bencivenni, S. Benson, J. Benton, A. Berezhnoy, R. Bernet, A. Bertolin, M. O. Bettler, M. van Beuzekom, A. Bien, S. Bifani, T. Bird, A. Bizzeti, T. Blake, F. Blanc, J. Blouw, S. Blusk, V. Bocci, A. Bondar, N. Bondar, W. Bonivento, S. Borghi, A. Borgia, M. Borsato, T. J.V. Bowcock, E. Bowen, C. Bozzi, D. Brett, M. Britsch, T. Britton, J. Brodzicka, N. H. Brook, A. Bursche, J. Buytaert, S. Cadeddu, R. Calabrese, M. Calvi, M. Calvo Gomez, P. Campana, D. Campora Perez, L. Capriotti, A. Carbone

Resultado de la investigaciónrevisión exhaustiva

24 Citas (Scopus)

Resumen

Abstract: Time-dependent CP asymmetries in the decay rates of the singly Cabibbo-suppressed decays D 0 → K K + and D 0 → π π + are measured in pp collision data corresponding to an integrated luminosity of 3.0 fb −1 collected by the LHCb experiment. The D 0 mesons are produced in semileptonic b-hadron decays, where the charge of the accompanying muon is used to determine the initial state as D 0 or (Formula presented.). The asymmetries in effective lifetimes between D 0 and (Formula presented.) decays, which are sensitive to indirect CP violation, are determined to be

(Formula presented.)

where the first uncertainties are statistical and the second systematic. This result is in agreement with previous measurements and with the hypothesis of no indirect CP violation in D 0 decays.[Figure not available: see fulltext.]

Idioma originalEnglish
Número de artículo43
PublicaciónJournal of High Energy Physics
Volumen2015
N.º4
DOI
EstadoPublished - 1 abr 2015
Publicado de forma externa

All Science Journal Classification (ASJC) codes

  • Física nuclear y de alta energía

Huella

Profundice en los temas de investigación de 'Measurement of indirect CP asymmetries in D<sup>0</sup> → K<sup>−</sup>K<sup>+</sup> and D<sup>0</sup> → π<sup>−</sup>π<sup>+</sup> decays using semileptonic B decays'. En conjunto forman una huella única.

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