Observation of the Λ<inf>b</inf><sup>0</sup>→Λφ decay

R. Aaij, C. Abellán Beteta, B. Adeva, M. Adinolfi, 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, G. Andreassi, M. AndreottiJ. E. Andrews, R. B. Appleby, O. Aquines Gutierrez, F. Archilli, P. d'Argent, A. Artamonov, M. Artuso, E. Aslanides, G. Auriemma, M. Baalouch, S. Bachmann, J. J. Back, A. Badalov, C. Baesso, S. Baker, 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, L. J. Bel, V. Bellee, N. Belloli, I. Belyaev, E. Ben-Haim, G. Bencivenni, S. Benson, J. Benton, A. Berezhnoy, R. Bernet, A. Bertolin, F. Betti, M. O. Bettler, M. van Beuzekom, S. Bifani, P. Billoir, T. Bird, A. Birnkraut, A. Bizzeti, T. Blake, F. Blanc, J. Blouw, S. Blusk, V. Bocci, A. Bondar, N. Bondar, W. Bonivento, A. Borgheresi, S. Borghi, M. Borisyak, M. Borsato, M. Boubdir, T. J.V. Bowcock, E. Bowen, C. Bozzi, S. Braun, M. Britsch, T. Britton, J. Brodzicka, E. Buchanan, C. Burr, A. Bursche, J. Buytaert, S. Cadeddu

Resultado de la investigación

18 Citas (Scopus)

Resumen

© 2016 The Author. The Λb0→Λφ decay is observed using data corresponding to an integrated luminosity of 3.0 fb-1 recorded by the LHCb experiment. The decay proceeds at leading order via a b→sss loop transition and is therefore sensitive to the possible presence of particles beyond the Standard Model. A first observation is reported with a significance of 5.9 standard deviations. The value of the branching fraction is measured to be (5.18±1.04±0.35-0.62+0.67)×10-6, where the first uncertainty is statistical, the second is systematic, and the third is related to external inputs. Triple-product asymmetries are measured to be consistent with zero.
Idioma originalEnglish
Páginas (desde-hasta)282-292
Número de páginas11
PublicaciónPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volumen759
DOI
EstadoPublished - 10 ago 2016
Publicado de forma externa

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Huella Profundice en los temas de investigación de 'Observation of the Λ<inf>b</inf><sup>0</sup>→Λφ decay'. En conjunto forman una huella única.

  • Citar esto

    Aaij, R., Abellán Beteta, C., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., Alessio, F., Alexander, M., Ali, S., Alkhazov, G., Alvarez Cartelle, P., Alves, A. A., Amato, S., Amerio, S., Amhis, Y., An, L., Anderlini, L., Andreassi, G., ... Cadeddu, S. (2016). Observation of the Λ<inf>b</inf><sup>0</sup>→Λφ decay. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 759, 282-292. https://doi.org/10.1016/j.physletb.2016.05.077