Observations of Λ<inf>b</inf><sup>0</sup> → ΛK<sup>+</sup>π<sup>−</sup> and Λ<inf>b</inf><sup>0</sup> → ΛK<sup>+</sup> K<sup>−</sup> decays and searches for other Λ<inf>b</inf><sup>0</sup> and Ξ<inf>b</inf><sup>0</sup> decays to Λh<sup>+</sup> h′<sup>−</sup> final states

The LHCb collaboration, 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. AndreassiM. Andreotti, J. 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

16 Citas (Scopus)

Resumen

© 2016, The Author(s). A search is performed for the charmless three-body decays of the Λb0 and Ξb0 baryons to the final states Λh+h′−, where h(′) = π or K. The analysis is based on a data sample, corresponding to an integrated luminosity of 3 fb−1 of pp collisions, collected by the LHCb experiment. The Λb0 → ΛK+π− and Λb0 → ΛK+K− decays are observed for the first time and their branching fractions and CP asymmetry parameters are measured. Evidence is seen for the Λb0 → Λπ+π− decay and limits are set on the branching fractions of Ξb0 baryon decays to the Λh+h′− final states.
Idioma originalEnglish
PublicaciónJournal of High Energy Physics
DOI
EstadoPublished - 1 may 2016
Publicado de forma externa

Huella Profundice en los temas de investigación de 'Observations of Λ<inf>b</inf><sup>0</sup> → ΛK<sup>+</sup>π<sup>−</sup> and Λ<inf>b</inf><sup>0</sup> → ΛK<sup>+</sup> K<sup>−</sup> decays and searches for other Λ<inf>b</inf><sup>0</sup> and Ξ<inf>b</inf><sup>0</sup> decays to Λh<sup>+</sup> h′<sup>−</sup> final states'. En conjunto forman una huella única.

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    The LHCb collaboration, 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., ... Cadeddu, S. (2016). Observations of Λ<inf>b</inf><sup>0</sup> → ΛK<sup>+</sup>π<sup>−</sup> and Λ<inf>b</inf><sup>0</sup> → ΛK<sup>+</sup> K<sup>−</sup> decays and searches for other Λ<inf>b</inf><sup>0</sup> and Ξ<inf>b</inf><sup>0</sup> decays to Λh<sup>+</sup> h′<sup>−</sup> final states. Journal of High Energy Physics. https://doi.org/10.1007/JHEP05(2016)081