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Evidence for the two-body charmless baryonic decay B+→ pΛ¯
- 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
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.].
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