TY - JOUR
T1 - Branching fraction measurement of the decay B+ →ψ (2S)φ (1020)K+
AU - LHCb Collaboration
AU - Aaij, R.
AU - Abdelmotteleb, A. S.W.
AU - Abellan Beteta, C.
AU - Abudinén, F.
AU - Ackernley, T.
AU - Adefisoye, A. A.
AU - Adeva, B.
AU - Adinolfi, M.
AU - Adlarson, P.
AU - Agapopoulou, C.
AU - Aidala, C. A.
AU - Ajaltouni, Z.
AU - Akar, S.
AU - Akiba, K.
AU - Albicocco, P.
AU - Albrecht, J.
AU - Alessio, F.
AU - Aliouche, Z.
AU - Alvarez Cartelle, P.
AU - Amalric, R.
AU - Amato, S.
AU - Amey, J. L.
AU - Amhis, Y.
AU - An, L.
AU - Anderlini, L.
AU - Andersson, M.
AU - Andreianov, A.
AU - Andreola, P.
AU - Andreotti, M.
AU - Andreou, D.
AU - Anelli, A.
AU - Ao, D.
AU - Archilli, F.
AU - Argenton, M.
AU - Arguedas Cuendis, S.
AU - Artamonov, A.
AU - Artuso, M.
AU - Aslanides, E.
AU - Ataíde Da Silva, R.
AU - Atzeni, M.
AU - Audurier, B.
AU - Bacher, D.
AU - Bachiller Perea, I.
AU - Bachmann, S.
AU - Bachmayer, M.
AU - Back, J. J.
AU - Baladron Rodriguez, P.
AU - Balagura, V.
AU - Fleuret, F.
AU - Maurice, E.
N1 - Publisher Copyright:
© 2025 CERN.
PY - 2025/5/1
Y1 - 2025/5/1
N2 - The branching fraction of the decay B+→ψ(2S)φ(1020)K+, relative to the topologically similar decay B+→J/ψφ(1020)K+, is measured using proton-proton collision data collected by the LHCb experiment at center-of-mass energies of 7, 8, and 13 TeV, corresponding to an integrated luminosity of 9 fb-1. The ratio is found to be 0.061±0.004±0.009, where the first uncertainty is statistical and the second systematic. Using the world-average branching fraction for B+→J/ψφ(1020)K+, the branching fraction for the decay B+→ψ(2S)φ(1020)K+ is found to be (3.0±0.2±0.5±0.2)×10-6, where the first uncertainty is statistical, the second systematic, and the third is due to the branching fraction of the normalization channel.
AB - The branching fraction of the decay B+→ψ(2S)φ(1020)K+, relative to the topologically similar decay B+→J/ψφ(1020)K+, is measured using proton-proton collision data collected by the LHCb experiment at center-of-mass energies of 7, 8, and 13 TeV, corresponding to an integrated luminosity of 9 fb-1. The ratio is found to be 0.061±0.004±0.009, where the first uncertainty is statistical and the second systematic. Using the world-average branching fraction for B+→J/ψφ(1020)K+, the branching fraction for the decay B+→ψ(2S)φ(1020)K+ is found to be (3.0±0.2±0.5±0.2)×10-6, where the first uncertainty is statistical, the second systematic, and the third is due to the branching fraction of the normalization channel.
UR - https://www.scopus.com/pages/publications/105005540606
U2 - 10.1103/PhysRevD.111.092008
DO - 10.1103/PhysRevD.111.092008
M3 - Article
AN - SCOPUS:105005540606
SN - 2470-0010
VL - 111
JO - Physical Review D
JF - Physical Review D
IS - 9
M1 - 092008
ER -