First evidence of direct CP violation in charmless two-body decays of Bs0 mesons

R. Aaij, C. Abellan Beteta, 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, Y. Amhis, J. Anderson, R. B. Appleby, O. Aquines Gutierrez, F. ArchilliL. Arrabito, A. Artamonov, M. Artuso, E. Aslanides, G. Auriemma, S. Bachmann, J. J. Back, V. Balagura, W. Baldini, R. J. Barlow, C. Barschel, S. Barsuk, W. Barter, A. Bates, C. Bauer, Th Bauer, A. Bay, I. Bediaga, S. Belogurov, K. Belous, I. Belyaev, E. Ben-Haim, M. Benayoun, G. Bencivenni, S. Benson, J. Benton, R. Bernet, M. O. Bettler, M. Van Beuzekom, A. Bien, S. Bifani, T. Bird, A. Bizzeti, P. M. Bjørnstad, T. Blake, F. Blanc, C. Blanks, J. Blouw, S. Blusk, A. Bobrov, V. Bocci, A. Bondar, N. Bondar, W. Bonivento, S. Borghi, A. Borgia, T. J.V. Bowcock, C. Bozzi, T. Brambach, J. Van Den Brand, J. Bressieux, D. Brett, M. Britsch, T. Britton, N. H. Brook, H. Brown, A. Büchler-Germann, I. Burducea, A. Bursche, J. Buytaert, S. Cadeddu, O. Callot, M. Calvi, M. Calvo Gomez, A. Camboni, P. Campana, A. Carbone, G. Carboni, R. Cardinale

Resultado de la investigación

58 Citas (Scopus)

Resumen

Using a data sample corresponding to an integrated luminosity of 0.35fb -1 collected by LHCb in 2011, we report the first evidence of CP violation in the decays of Bs0 mesons to K ±π δ pairs, A CP(Bs0→Kπ)=0.27±0.08(stat) ±0.02(syst), with a significance of 3.3σ. Furthermore, we report the most precise measurement of CP violation in the decays of B0 mesons to K ±π δ pairs, A CP(B0→Kπ)= -0.088±0.011(stat)±0.008(syst), with a significance exceeding 6σ. © 2012 CERN.
Idioma originalEnglish
PublicaciónPhysical Review Letters
DOI
EstadoPublished - 16 may 2012
Publicado de forma externa

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Aaij, R., Abellan Beteta, C., Adeva, B., Adinolfi, M., Adrover, C., Affolder, A., Ajaltouni, Z., Albrecht, J., Alessio, F., Alexander, M., Ali, S., Alkhazov, G., Alvarez Cartelle, P., Alves, A. A., Amato, S., Amhis, Y., Anderson, J., Appleby, R. B., Aquines Gutierrez, O., ... Cardinale, R. (2012). First evidence of direct CP violation in charmless two-body decays of Bs0 mesons. Physical Review Letters. https://doi.org/10.1103/PhysRevLett.108.201601