Measurement of cp violation in the phase space of B ±→K±π+π- and B±→K±K+K- Decays

R. Aaij, B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, Z. Ajaltouni, J. Albrecht, F. Alessio, M. Alexander, S. Ali, G. Alkhazov, P. Alvarez Cartelle, A. A. Alves, S. Amato, S. Amerio, Y. Amhis, L. Anderlini, J. Anderson, R. Andreassen, J. E. AndrewsR. B. Appleby, O. Aquines Gutierrez, F. Archilli, A. Artamonov, M. Artuso, E. Aslanides, G. Auriemma, M. Baalouch, S. Bachmann, J. J. Back, C. Baesso, V. Balagura, W. Baldini, R. J. Barlow, C. Barschel, S. Barsuk, W. Barter, Th Bauer, A. Bay, J. Beddow, F. Bedeschi, I. Bediaga, S. Belogurov, K. Belous, I. Belyaev, E. Ben-Haim, G. Bencivenni, S. Benson, J. Benton, A. Berezhnoy, R. Bernet, M. O. Bettler, M. Van Beuzekom, A. Bien, S. Bifani, T. Bird, A. Bizzeti, P. M. Bjørnstad, T. Blake, F. Blanc, J. Blouw, S. Blusk, V. Bocci, A. Bondar, N. Bondar, W. Bonivento, S. Borghi, A. Borgia, T. J.V. Bowcock, E. Bowen, C. Bozzi, T. Brambach, J. Van Den Brand, J. Bressieux, D. Brett, M. Britsch, T. Britton, N. H. Brook, H. Brown, I. Burducea, A. Bursche, G. Busetto, J. Buytaert, S. Cadeddu, O. Callot, M. Calvi, M. Calvo Gomez, A. Camboni, P. Campana, D. Campora Perez, A. Carbone, G. Carboni, R. Cardinale, A. Cardini, H. Carranza-Mejia, L. Carson, K. Carvalho Akiba, G. Casse

Resultado de la investigaciónrevisión exhaustiva

97 Citas (Scopus)

Resumen

The charmless decays B ±→K ±π +π - and B ±→K ±K +K - are reconstructed using data, corresponding to an integrated luminosity of 1.0 fb -1, collected by LHCb in 2011. The inclusive charge asymmetries of these modes are measured as A CP(B ±→K ±π +π -)=0.032±0.008 (stat)±0.004 (syst)±0.007(J/ψK ±) and A CP(B ±→K ±K +K -)=-0. 043±0.009 (stat)±0.003 (syst)±0.007(J/ψK ±), where the third uncertainty is due to the CP asymmetry of the B ±→J/ψK ± reference mode. The significance of A CP(B ±→K ±K +K -) exceeds three standard deviations and is the first evidence of an inclusive CP asymmetry in charmless three-body B decays. In addition to the inclusive CP asymmetries, larger asymmetries are observed in localized regions of phase space.

Idioma originalEnglish
Número de artículo101801
PublicaciónPhysical Review Letters
Volumen111
N.º10
DOI
EstadoPublished - 3 sep 2013
Publicado de forma externa

All Science Journal Classification (ASJC) codes

  • Física y astronomía (todo)

Huella

Profundice en los temas de investigación de 'Measurement of cp violation in the phase space of B <sup>±</sup>→K<sup>±</sup>π<sup>+</sup>π<sup>-</sup> and B<sup>±</sup>→K<sup>±</sup>K<sup>+</sup>K<sup>-</sup> Decays'. En conjunto forman una huella única.

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