The decays B+→J/ψ3π+2π− and B+→ψ(2S)π+π+π− are observed for the first time using a data sample corresponding to an integrated luminosity of 3.0 fb −1 , collected by the LHCb experiment in proton–proton collisions at the centre-of-mass energies of 7 and 8 TeV . The branching fractions relative to that of B+→ψ(2S)K+ are measured to be (B+→J/ψ3π+2π−)(B+→ψ(2S)K+)=(B+→ψ(2S)π+π+π−)(B+→ψ(2S)K+)=(1.88±0.17±0.09)×10−2,(3.04±0.50±0.26)×10−2, where the first uncertainties are statistical and the second are systematic.

Observation of B+→ J / ψ 3 π+2 π-and B+→ ψ (2 S) π+π+π-decays / Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., Alessio, F., Alexander, M., Ali, S., Alkhazov, G., Alvarez Cartelle, P., Alves, A.A., Amato, S., Amerio, S., Amhis, Y., An, L., Anderlini, L., Andreassi, G., Andreotti, M., Andrews, J.E., et al.. - In: EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6052. - 77:2(2017). [10.1140/epjc/s10052-017-4610-6]

Observation of B+→ J / ψ 3 π+2 π-and B+→ ψ (2 S) π+π+π-decays

Capriotti, L.;Casse, G.;Sarti, A.;Sciubba, A.;
2017

Abstract

The decays B+→J/ψ3π+2π− and B+→ψ(2S)π+π+π− are observed for the first time using a data sample corresponding to an integrated luminosity of 3.0 fb −1 , collected by the LHCb experiment in proton–proton collisions at the centre-of-mass energies of 7 and 8 TeV . The branching fractions relative to that of B+→ψ(2S)K+ are measured to be (B+→J/ψ3π+2π−)(B+→ψ(2S)K+)=(B+→ψ(2S)π+π+π−)(B+→ψ(2S)K+)=(1.88±0.17±0.09)×10−2,(3.04±0.50±0.26)×10−2, where the first uncertainties are statistical and the second are systematic.
2017
Systematic Uncertainty Primary Vertex Combinatorial Background LHCb Experiment Muon Candidate
01 Pubblicazione su rivista::01a Articolo in rivista
Observation of B+→ J / ψ 3 π+2 π-and B+→ ψ (2 S) π+π+π-decays / Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., Alessio, F., Alexander, M., Ali, S., Alkhazov, G., Alvarez Cartelle, P., Alves, A.A., Amato, S., Amerio, S., Amhis, Y., An, L., Anderlini, L., Andreassi, G., Andreotti, M., Andrews, J.E., et al.. - In: EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6052. - 77:2(2017). [10.1140/epjc/s10052-017-4610-6]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1074669
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