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

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16 Citas (Scopus)

Resumen

A search is performed for the charmless three-body decays of the Λ b 0 and Ξ b 0 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 Λ b 0 → ΛK +π and Λ b 0 → ΛK +K decays are observed for the first time and their branching fractions and CP asymmetry parameters are measured. Evidence is seen for the Λ b 0 → Λπ +π decay and limits are set on the branching fractions of Ξ b 0 baryon decays to the Λh +h′ final states.

Idioma originalEnglish
Número de artículo81
PublicaciónJournal of High Energy Physics
Volumen2016
N.º5
DOI
EstadoPublished - 1 may 2016
Publicado de forma externa

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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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