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Evidence for the two-body charmless baryonic decay B+→ pΛ¯
- Author(s): Aaij, R
- Adeva, B
- Adinolfi, M
- Ajaltouni, Z
- Akar, S
- Albrecht, J
- Alessio, F
- Alexander, M
- Ali, S
- Alkhazov, G
- Cartelle, PA
- Alves, A
- Amato, S
- Amerio, S
- Amhis, Y
- An, L
- Anderlini, L
- Andreassi, G
- Andreotti, M
- Andrews, JE
- Appleby, RB
- Archilli, F
- d’Argent, P
- Romeu, JA
- Artamonov, A
- Artuso, M
- Aslanides, E
- Auriemma, G
- Baalouch, M
- Babuschkin, I
- Bachmann, S
- Back, JJ
- Badalov, A
- Baesso, C
- Baker, S
- Baldini, W
- Barlow, RJ
- Barschel, C
- Barsuk, S
- Barter, W
- Baszczyk, M
- Batozskaya, V
- Batsukh, B
- Battista, V
- Bay, A
- Beaucourt, L
- Beddow, J
- Bedeschi, F
- Bediaga, I
- Bel, LJ
- Bellee, V
- Belloli, N
- Belous, K
- Belyaev, I
- Ben-Haim, E
- Bencivenni, G
- Benson, S
- Benton, J
- Berezhnoy, A
- Bernet, R
- Bertolin, A
- Betancourt, C
- Betti, F
- Bettler, MO
- van Beuzekom, M
- Bezshyiko, I
- Bifani, S
- Billoir, P
- Bird, T
- Birnkraut, A
- Bitadze, A
- Bizzeti, A
- Blake, T
- Blanc, F
- Blouw, J
- Blusk, S
- Bocci, V
- Boettcher, T
- Bondar, A
- Bondar, N
- Bonivento, W
- Bordyuzhin, I
- Borgheresi, A
- Borghi, S
- Borisyak, M
- Borsato, M
- Bossu, F
- Boubdir, M
- Bowcock, TJV
- Bowen, E
- Bozzi, C
- Braun, S
- Britsch, M
- Britton, T
- Brodzicka, J
- Buchanan, E
- Burr, C
- Bursche, A
- Buytaert, J
- et al.
Published Web Location
https://doi.org/10.1007/JHEP04(2017)162Abstract
© 2017, The Author(s). A search for the rare two-body charmless baryonic decay B+→ pΛ¯ is performed with pp collision data, corresponding to an integrated luminosity of 3 fb−1, collected by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. An excess of B+→pΛ¯ candidates with respect to background expectations is seen with a statistical significance of 4.1 standard deviations, and constitutes the first evidence for this decay. The branching fraction, measured using the B+→KS0π+ decay for normalisation,(Formula Presented.)where the first uncertainty is statistical and the second systematic.[Figure not available: see fulltext.].