Research output: Contribution to journal › Article › peer-review
Observation of the Ξb −→J/ψΛK− decay. / The LHCb Collaboration.
In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 772, 10.09.2017, p. 265-273.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Observation of the Ξb −→J/ψΛK− decay
AU - The LHCb Collaboration
AU - Aaij, R.
AU - Adeva, B.
AU - Adinolfi, M.
AU - Ajaltouni, Z.
AU - Akar, S.
AU - Albrecht, J.
AU - Alessio, F.
AU - Alexander, M.
AU - Ali, S.
AU - Alkhazov, G.
AU - Alvarez Cartelle, P.
AU - Alves, A. A.
AU - Amato, S.
AU - Amerio, S.
AU - Amhis, Y.
AU - An, L.
AU - Anderlini, L.
AU - Andreassi, G.
AU - Andreotti, M.
AU - Andrews, J. E.
AU - Appleby, R. B.
AU - Archilli, F.
AU - d'Argent, P.
AU - Arnau Romeu, J.
AU - Artamonov, A.
AU - Artuso, M.
AU - Aslanides, E.
AU - Auriemma, G.
AU - Baalouch, M.
AU - Babuschkin, I.
AU - Bachmann, S.
AU - Back, J. J.
AU - Badalov, A.
AU - Baesso, C.
AU - Baker, S.
AU - Balagura, V.
AU - Baldini, W.
AU - Barlow, R. J.
AU - Barschel, C.
AU - Barsuk, S.
AU - Barter, W.
AU - Baryshnikov, F.
AU - Baszczyk, M.
AU - Batozskaya, V.
AU - Batsukh, B.
AU - Bondar, A.
AU - Eidelman, S.
AU - Krokovny, P.
AU - Shekhtman, L.
AU - Vorobyev, V.
PY - 2017/9/10
Y1 - 2017/9/10
N2 - The observation of the decay Ξb −→J/ψΛK− is reported, using a data sample corresponding to an integrated luminosity of 3fb−1, collected by the LHCb detector in pp collisions at centre-of-mass energies of 7 and 8TeV. The production rate of Ξb − baryons detected in the decay Ξb −→J/ψΛK− is measured relative to that of Λb 0 baryons using the decay Λb 0→J/ψΛ. Integrated over the b-baryon transverse momentum pT<25GeV/c and rapidity 2.0−2, where fΞb − and fΛb 0 are the fragmentation fractions of b→Ξb − and b→Λb 0 transitions, and B represents the branching fraction of the corresponding b-baryon decay. The mass difference between Ξb − and Λb 0 baryons is measured to be M(Ξb −)−M(Λb 0)=177.08±0.47 (stat)±0.16 (syst)MeV/c2.
AB - The observation of the decay Ξb −→J/ψΛK− is reported, using a data sample corresponding to an integrated luminosity of 3fb−1, collected by the LHCb detector in pp collisions at centre-of-mass energies of 7 and 8TeV. The production rate of Ξb − baryons detected in the decay Ξb −→J/ψΛK− is measured relative to that of Λb 0 baryons using the decay Λb 0→J/ψΛ. Integrated over the b-baryon transverse momentum pT<25GeV/c and rapidity 2.0−2, where fΞb − and fΛb 0 are the fragmentation fractions of b→Ξb − and b→Λb 0 transitions, and B represents the branching fraction of the corresponding b-baryon decay. The mass difference between Ξb − and Λb 0 baryons is measured to be M(Ξb −)−M(Λb 0)=177.08±0.47 (stat)±0.16 (syst)MeV/c2.
KW - HADRONS
KW - RATIO
KW - TOOL
UR - http://www.scopus.com/inward/record.url?scp=85030541375&partnerID=8YFLogxK
U2 - 10.1016/j.physletb.2017.06.045
DO - 10.1016/j.physletb.2017.06.045
M3 - Article
AN - SCOPUS:85030541375
VL - 772
SP - 265
EP - 273
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
ER -
ID: 12671356