Aaij, R; Adeva, B; Adinolfi, M; Ajaltouni, Z; Akar, S; Albrecht, J; Alessio, F; Alexander, M; Alfonso Albero, A; Ali, S; Alkhazov, G; Alvarez Cartelle, P; Alves, AA; Amato, S; Amerio, S; Amhis, Y; An, L; Anderlini, L; Andreassi, G; Andreotti, M; Andrews, JE; Appleby, RB; Archilli, F; Arnau Romeu, J; Artamonov, A; Artuso, M; Aslanides, E; Atzeni, M; Auriemma, G; Baalouch, M; Babuschkin, I; Bachmann, S; Back, JJ; Badalov, A; Baesso, C; Baker, S; Balagura, V; Baldini, W; Baranov, A; Barlow, RJ; Barschel, C; Barsuk, S; Barter, W; Baryshnikov, F; Batozskaya, V; Battista, V; Bay, A; Beaucourt, L; Beddow, J; Bedeschi, F; Bediaga, I; Beiter, A; Bel, LJ; Beliy, N; Bellee, V; Belloli, N; Belous, K; Belyaev, I; Bencivenni, G; Ben-Haim, E; Benson, S; Beranek, S; Berezhnoy, A; Bernet, R; Berninghoff, D; Bertholet, E; Bertolin, A; Betancourt, C; Betti, F; Bettler, MO; Bezshyiko, I; Bifani, S; Billoir, P; Birnkraut, A; Bizzeti, A; Bjørn, M; Blake, T; Blanc, F; Blusk, S; Bocci, V; Boettcher, T; Bondar, A; Bondar, N; Bordyuzhin, I; Borghi, S

doi:10.1007/JHEP03(2019)126

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Measurement of the ratio of branching fractions of the decays Λ b⁰ → ψ(2S)Λ and Λ b⁰ → J/ψΛ

2019

Aaij, R;
Adeva, B;
Adinolfi, M;
Ajaltouni, Z;
Akar, S;
Albrecht, J;
Alessio, F;
Alexander, M;
Alfonso Albero, A;
Ali, S;
Alkhazov, G;
Alvarez Cartelle, P;
Alves, AA;
Amato, S;
Amerio, S;
Amhis, Y;
An, L;
Anderlini, L;
Andreassi, G;
Andreotti, M;
Andrews, JE;
Appleby, RB;
Archilli, F;
Arnau Romeu, J;
Artamonov, A;
Artuso, M;
Aslanides, E;
Atzeni, M;
Auriemma, G;
Baalouch, M;
Babuschkin, I;
Bachmann, S;
Back, JJ;
Badalov, A;
Baesso, C;
Baker, S;
Balagura, V;
Baldini, W;
Baranov, A;
Barlow, RJ;
Barschel, C;
Barsuk, S;
Barter, W;
Baryshnikov, F;
Batozskaya, V;
Battista, V;
Bay, A;
Beaucourt, L;
Beddow, J;
Bedeschi, F;
Bediaga, I;
Beiter, A;
Bel, LJ;
Beliy, N;
Bellee, V;
Belloli, N;
Belous, K;
Belyaev, I;
Bencivenni, G;
Ben-Haim, E;
Benson, S;
Beranek, S;
Berezhnoy, A;
Bernet, R;
Berninghoff, D;
Bertholet, E;
Bertolin, A;
Betancourt, C;
Betti, F;
Bettler, MO;
Bezshyiko, I;
Bifani, S;
Billoir, P;
Birnkraut, A;
Bizzeti, A;
Bjørn, M;
Blake, T;
Blanc, F;
Blusk, S;
Bocci, V;
Boettcher, T;
Bondar, A;
Bondar, N;
Bordyuzhin, I;
Borghi, S;
Borisyak, M;
Borsato, M;
Bossu, F;
Boubdir, M;
Bowcock, TJV;
Bowen, E;
Bozzi, C;
Braun, S;
Brodzicka, J;
Brundu, D;
Buchanan, E;
Burr, C;
Bursche, A;
Buytaert, J;
Byczynski, W
et al.

Published Web Location

https://doi.org/10.1007/JHEP03(2019)126

Abstract

Using pp collisions corresponding to 3 fb −1 integrated luminosity, recorded by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV, the ratio of branching fractionsℬ(Λb0→ψ(2S)Λ)/ℬ(Λb0→J/ψΛ)=0.513±0.023(stat)±0.016(syst)±0.011(ℬ)is determined. The first uncertainty is statistical, the second is systematic and the third is due to the external branching fractions used.[Figure not available: see fulltext.]

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Lawrence Berkeley National Laboratory

Measurement of the ratio of branching fractions of the decays Λ b0 → ψ(2S)Λ and Λ b0 → J/ψΛ

Published Web Location

Measurement of the ratio of branching fractions of the decays Λ b⁰ → ψ(2S)Λ and Λ b⁰ → J/ψΛ