Measurements of the branching fractions of B+ -> p(p)over-barK(+) decays

Aaij, R.; Abellan Beteta, C.; Adametz, A.; Adeva, B.; Adinolfi, M.; Adrover, C.; Affolder, A.; Ajaltouni, Z.; Albrecht, J.; Alessio, F.; Alexander, M.; Ali, S.; Alkhazov, G.; Alvarez Cartelle, P.; Amato, S.; Amhis, Y.; Anderlini, L.; Anderson, J.; Andreassen, R.; Appleby, R. B.; Gutierrez, O. Aquines; Archilli, F.; Artamonov, A.; Artuso, M.; Aslanides, E.; Auriemma, G.; Bachmann, S.; Back, J. J.; Baesso, C.; Balagura, V.; Baldini, W.; Barlow, R. J.; Barschel, C.; Barsuk, S.; Barter, W.; Bauer, Th; Bay, A.; Beddow, J.; Bediaga, I.; Belogurov, S.; Belous, K.; Belyaev, I.; Ben-Haim, E.; Benayoun, M.; Bencivenni, G.; Benson, S.; Benton, J.; Berezhnoy, A.; Bernet, R.; Bettler, M-O; Van Beuzekom, M.; Bien, A.; Bifani, S.; Bird, T.; Bizzeti, A.; Bjornstads, P. M.; Blake, T.; Blanc, F.; Blanks, C.; Blouw, J.; Blusk, S.; Bobrov, A.; Bocci, V.; Bondar, A.; Bondar, N.; Bonivento, W.; Borghi, S.; Borgia, A.; Bowcock, T. J. V.; Bowen, E.; Bozzi, C.; Brambach, T.; Van Den Brand, J.; Bressieux, J.; Brett, D.; Britsch, M.; Britton, T.; Brook, N. H.; Brown, H.; Burducea, I.; Bursche, A.; Buytaert, J.; Cadeddu, S.; Callot, O.; Calvi, M.; Calvo Gomez, M.; Camboni, A.; Campana, P.; Carbone, A.; Carboni, G.; Cardinale, R.; Cardini, A.; Carranza-Mejia, H.; Carson, L.; Carvalho Akiba, K.; Casse, G.; Cattaneo, M.; Cauet, Ch; Charles, M.; Charpentier, Ph

doi:10.1140/epjc/s10052-013-2462-2

research article

Measurements of the branching fractions of B+ -> p(p)over-barK(+) decays

Aaij, R.

•

Abellan Beteta, C.

•

Adametz, A.

2013

The European Physical Journal C

The branching fractions of the decay B+ -> p (p) over barK(+) for different intermediate states are measured using data, corresponding to an integrated luminosity of 1.0 fb(-1), collected by the LHCb experiment. The total branching fraction, its charmless component (M-p (p) over bar _ < 2.85 GeV/c(2)) and the branching fractions via the resonant c<(c)over bar> c states eta c(1S) and psi(2S) relative to the decay via a J/psi intermediate state are B(B+ -> p (p) over bar K+)(total)/B(B+ -> J/psi K+ -> p (p) over barK(+)) = 4.91 +/- 0.19 (stat) +/- 0.14 (syst), B(B+ -> p (p) over bar K+) M-P (p) over bar<2.85 GeV/(2)/B(B+ -> J/psi K+ -> p<(p)over bar>K+) = 2.02 +/- 0.10 (stat) +/- 0.08 (syst), B(B+ -> eta(c) (1S)K+ -> p<(pover bar>K+)/B(B+ -> J/psi K+ -> p (p) over barK(+)) =0.578 +/- 0.035 (stat) +/- 0.027 (syst), B(B+ -> psi(2S)K+ -> p (p) over barK(+) )/B(B+ -> J/psi K+ -> p (p) over barK(+)) = 0.080 +/- 0.012 (stat) +/- 0.009 (syst). Upper limits on the B+ branching fractions into the eta(c)(2S) meson and into the charmonium-like states X(3872) and X(3915) are also obtained.