Study of <i>B_c</i><SUP>+</SUP> decays to the <i>K</i><SUP>+</SUP><i>K</i><SUP>-</SUP>π<SUP>+</SUP> final state and evidence for the decay <i>B_c</i><SUP>+</SUP> → χ_<i>c</i>0π<SUP>+</SUP>

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Aaij, R, Adeva, B, Adinolfi, M, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G et al (show 756 more authors) , Cartelle, P Alvarez, Alves, AA Jr, Amato, S, Amerio, S, Amhis, Y, An, L, Anderlini, L, Andreassi, G, Andreotti, M, Andrews, JE, Appleby, RB, Archilli, F, d'Argent, P, Romeu, J Arnau, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Baalouch, M, Babuschkin, I, Bachmann, S, Back, JJ, Badalov, A, Baesso, C, Baldini, W, Barlow, RJ, Barschel, C, Barsuk, S, Barter, W, Baszczyk, M, Batozskaya, V, Batsukh, B, Battista, V, Bay, A, Beaucourt, L, Beddow, J, Bedeschi, F, Bediaga, I, Bel, LJ, Bellee, V, Belloli, N, Belous, K, Belyaev, I, Ben-Haim, E, Bencivenni, G, Benson, S, Benton, J, Berezhnoy, A, Bernet, R, Bertolin, A, Betti, F, Bettler, M-O, van Beuzekom, M, Bezshyiko, Ia, Bifani, S, Billoir, P, Bird, T, Birnkraut, A, Bitadze, A, Bizzeti, A, Blake, T, Blanc, F, Blouw, J, Blusk, S, Bocci, V, Boettcher, T, Bondar, A, Bondar, N, Bonivento, W, 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decays to the <i>K</i><SUP>+</SUP><i>K</i><SUP>-</SUP>π<SUP>+</SUP> final state and evidence for the decay <i>B_c</i><SUP>+</SUP> → χ_<i>c</i>0π<SUP>+</SUP>. PHYSICAL REVIEW D, 94 (9). 091102-.

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Abstract

A study of $B_c^+\to K^+K^-\pi^+$ decays is performed for the first time using data corresponding to an integrated luminosity of 3.0 $\mathrm{fb}^{-1}$ collected by the LHCb experiment in $pp$ collisions at centre-of-mass energies of $7$ and $8$ TeV. Evidence for the decay $B_c^+\to\chi_{c0}(\to K^+K^-)\pi^+$ is reported with a significance of 4.0 standard deviations, resulting in the measurement of $\frac{\sigma(B_c^+)}{\sigma(B^+)}\times\mathcal{B}(B_c^+\to\chi_{c0}\pi^+)$ to be $(9.8^{+3.4}_{-3.0}(\mathrm{stat})\pm 0.8(\mathrm{syst}))\times 10^{-6}$. Here $\mathcal{B}$ denotes a branching fraction while $\sigma(B_c^+)$ and $\sigma(B^+)$ are the production cross-sections for $B_c^+$ and $B^+$ mesons. An indication of $\bar b c$ weak annihilation is found for the region $m(K^-\pi^+)<1.834\mathrm{\,Ge\kern -0.1em V\!/}c^2$, with a significance of 2.4 standard deviations.

Item Type:	Article
Additional Information:	All figures and tables, along with any supplementary material and additional information, are available at https://lhcbproject.web.cern.ch/lhcbproject/Publications/LHCbProjectPublic/LHCb-PAPER-2016-022.html, link to supplemental material inserted in the references
Uncontrolled Keywords:	hep-ex, hep-ex
Depositing User:	Symplectic Admin
Date Deposited:	02 Aug 2019 10:33
Last Modified:	10 Oct 2023 20:21
DOI:	10.1103/PhysRevD.94.091102
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3050849

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• Study of B-c(+) decays to the K+K-pi(+) final state and evidence for the decay B-c(+) -> chi(c0)pi(+). (deposited 26 Jul 2016 14:50)
  • Study of <i>B_c</i><SUP>+</SUP> decays to the <i>K</i><SUP>+</SUP><i>K</i><SUP>-</SUP>π<SUP>+</SUP> final state and evidence for the decay <i>B_c</i><SUP>+</SUP> → χ_<i>c</i>0π<SUP>+</SUP>. (deposited 02 Aug 2019 10:33) [Currently Displayed]