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Measurement of relative branching fractions of B decays to ψ(2S) and J/ψ mesons.

  • Author(s): LHCb Collaboration;
  • 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;
  • Alves, AA;
  • Amato, S;
  • Amhis, Y;
  • Anderson, J;
  • Appleby, RB;
  • Aquines Gutierrez, O;
  • Archilli, F;
  • Artamonov, A;
  • Artuso, M;
  • Aslanides, E;
  • Auriemma, G;
  • Bachmann, S;
  • Back, JJ;
  • Balagura, V;
  • Baldini, W;
  • Barlow, RJ;
  • Barschel, C;
  • Barsuk, S;
  • Barter, W;
  • Bates, A;
  • Bauer, C;
  • 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;
  • Bernet, R;
  • Bettler, M-O;
  • van Beuzekom, M;
  • Bien, A;
  • Bifani, S;
  • Bird, T;
  • Bizzeti, A;
  • Bjørnstad, PM;
  • 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, TJV;
  • Bozzi, C;
  • Brambach, T;
  • van den Brand, J;
  • Bressieux, J;
  • Brett, D;
  • Britsch, M;
  • Britton, T;
  • Brook, NH;
  • Brown, H;
  • Büchler-Germann, A;
  • 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;
  • Carson, L;
  • Carvalho Akiba, K;
  • Casse, G;
  • Cattaneo, M;
  • Cauet, Ch;
  • Charles, M;
  • Charpentier, Ph;
  • Chiapolini, N;
  • Chrzaszcz, M;
  • Ciba, K;
  • Cid Vidal, X;
  • Ciezarek, G;
  • Clarke, PEL;
  • Clemencic, M;
  • Cliff, HV;
  • Closier, J;
  • Coca, C;
  • Coco, V;
  • Cogan, J;
  • Cogneras, E;
  • Collins, P;
  • Comerma-Montells, A;
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  • Corti, G;
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  • Cowan, GA;
  • Currie, R;
  • D'Ambrosio, C;
  • David, P;
  • David, PNY;
  • De Bonis, I;
  • De Bruyn, K;
  • De Capua, S;
  • De Cian, M;
  • De Miranda, JM;
  • De Paula, L;
  • De Simone, P;
  • Decamp, D;
  • Deckenhoff, M;
  • Degaudenzi, H;
  • Del Buono, L;
  • Deplano, C;
  • Derkach, D;
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  • van Leerdam, J;
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  • Li, Y;
  • Li Gioi, L;
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  • Lindner, R;
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  • Liu, B;
  • Liu, G;
  • von Loeben, J;
  • Lopes, JH;
  • Lopez Asamar, E;
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Abstract

The relative rates of B-meson decays into J/ψ and ψ(2S) mesons are measured for the three decay modes in pp collisions recorded with the LHCb detector. The ratios of branching fractions ([Formula: see text]) are measured to be [Formula: see text] where the third uncertainty is from the ratio of the ψ(2S) and J/ψ branching fractions to μ+μ-.

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