Observation of the B-s(0) -> J/psi (KsK +/-)-K-0 pi(-/+) decay
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Observation of the B-s(0) -> J/psi (KsK +/-)-K-0 pi(-/+) decay

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Observation of the B-s(0) -> J/psi (KsK +/-)-K-0 pi(-/+) decay

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LHCb Collaboration; Martínez Vidal, Fernando Perfil; Oyanguren Campos, Arantza Perfil; Ruiz Valls, Pablo; Sánchez Mayordomo, Carlos
Aquest document és un/a article, creat/da en: 2014
Decays of the form B-s(0) -> J/psi K(s)(0)h(+)h((1)-) (h((1)) = K, pi) are searched for in proton-proton collision data corresponding to an integrated luminosity of 1.0 fb(-1) recorded with the LHCb detector. The first observation of the B-s(0) -> J/psi (KsK +/-)-K-0 pi(-/+) decay is reported, with significance in excess of 10 standard deviations. The B-0 -> J/psi (KsK+K-)-K-0 decay is also observed for the first time. The branching fraction of B-s(0) -> J/psi K(s)(0)h(+)h((1)-) is determined, to significantly better precision than previous measurements, using B-0 -> J/psi K(s)(0)h(+)h((1)-) as a normalisation channel. Branching fractions and upper limits of the other B-(s)(0) -> J/psi K-s(0)pi(+)pi(-) (s modes are determined relative to that of the B-0 -> J/psi K-s(0)pi(+)pi(-) decay.

    LHCb Collaboration Martínez Vidal, Fernando Oyanguren Campos, Arantza Ruiz Valls, Pablo Sánchez Mayordomo, Carlos 2014 Observation of the B-s(0) -> J/psi (KsK +/-)-K-0 pi(-/+) decay Journal Of High Energy Physics 07 07 140-1 140-29
http://dx.doi.org/10.1007/JHEP07(2014)140
distribuït sota llicència Creative Commons de Reconeixement-NoComercial 3.0 No adaptada

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