Evidence for the decay \(B_c^+ \rightarrow J/\psi 3\pi^+ 2\pi^-\)

Evidence is presented for the decay \(B_c+\rightarrow J/\psi 3\pi^+2\pi^-\) using proton-proton collision data, corresponding to an integrated luminosity of 3fb\(^{-1}\), collected with the LHCb detector. A signal yield of \(32\pm8\) decays is found with a significance of 4.5 standard deviations. Th...

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Bibliographic Details
Published in:arXiv.org 2014-04
Main Authors: collaboration, LHCb, P Alvarez Cartelle, Badalov, A, Bien, A, Bizzeti, A, Blake, T, Borsato, M, Brett, D, Caponio, F, Casse, G, Charles, M, Charpentier, Ph, S -F Cheung, Clarke, P E L, Clemencic, M, Contu, A, Cowan, G A, De Cian, M, De Paula, L, A Di Canto, Donleavy, S, Eisenhardt, S, Ekelhof, R, Eklund, L, Esen, S, Falabella, A, Francisco, O, J Fu, J Garra Tico, Graugés, E, Gys, T, Hamilton, B, Harnew, N, Harnew, S T, Hicheur, A, Hoballah, M, Jezabek, M, Joram, C, Kandybei, S, Kruse, F, Lacarrere, D, Lafferty, G, Langhans, B, Lohn, S, Lucchesi, D, Lupton, O, Manca, G, Manzali, M, Massafferri, A, Meissner, M, J Molina Rodriguez, Morawski, P, Mountain, R, Müller, K, Neufeld, N, Nikodem, T, Okhrimenko, O, Onderwater, G, Orlandea, M, Owen, P, Pal, B K, Pappalardo, L, Pearce, A, M Pepe Altarelli, Perret, P, Pescatore, L, Pistone, A, Poluektov, A, Potterat, C, Pritchard, A, Pugatch, V, Qian, W, Richards, A, Robbe, P, P Ruiz Valls, Sagidova, N, Guimaraes, V Salustino, B Sanmartin Sedes, Senderowska, K, Seyfert, P, Shapkin, M, Sirendi, M, Soomro, F, Sparkes, A, Spradlin, P, Stagni, F, Subbiah, V K, Swientek, S, Teubert, F, Tolk, S, Tomassetti, L, Topp-Joergensen, S, C Vázquez Sierra, Vecchi, S, C Vo\ss, Websdale, D, Wilkinson, G, Wimberley, J, Yuan, X, Zvyagin, A
Format: Article
Language:English
Subjects:
Decay
Luminosity
Particle collisions
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Description
Summary:Evidence is presented for the decay \(B_c+\rightarrow J/\psi 3\pi^+2\pi^-\) using proton-proton collision data, corresponding to an integrated luminosity of 3fb\(^{-1}\), collected with the LHCb detector. A signal yield of \(32\pm8\) decays is found with a significance of 4.5 standard deviations. The ratio of the branching fraction of the \(B_c^+\rightarrow J/\psi 3\pi^+ 2\pi^-\) decay to that of the \(B_c^+ \rightarrow J/\psi \pi^+\) decay is measured to be $$ \frac{Br (B_c^+ \rightarrow J/\psi 3\pi^+2\pi^)}{Br (B_c^+ \rightarrow J/\psi \pi^+)} = 1.74\pm0.44\pm0.24, $$ where the first uncertainty is statistical and the second is systematic.
ISSN:2331-8422
DOI:10.48550/arxiv.1404.0287