Publication

Observation of the decay B-c(+) -> psi(2S)pi(+)

Olivier Schneider, Aurelio Bay, Guido Haefeli, Tatsuya Nakada, Frédéric Blanc, Yasmine Sara Amhis, Julien Rouvinet, Barinjaka Rakotomiaramanana, Raluca Anca Muresan, Johan Luisier, Anne Keune, Vincent Fave
2013
Journal Articles

Abstract

The decay B-c(+) -> psi(2S)pi(+) with psi(2S) -> mu(+)mu(-) is observed with a significance of 5.2 sigma using pp collision data corresponding to an integrated luminosity of 1.0 fb(-1) collected by the LHCb experiment. The branching fraction of B-c(+) -> psi(2S)pi(+) decays relative to that of the B-c(+) -> J/psi pi(+) mode is measured to be B(B-c(+) -> psi(2S)pi(+))/B(B-c(+) -> J/psi pi(+)) = 0.250 +/- 0.068(stat) +/- 0.014(syst) +/- 0.006(B). The last term is the uncertainty on the ratio B(psi(2S) -> mu(+)mu(-))/B(J/psi -> mu(+)mu(-)). DOI: 10.1103/PhysRevD.87.071103

Official source

https://infoscience.epfl.ch/entities/publication/24a0058d-d724-4a78-a199-6d8fc4cdfd1f

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Observation of the decay B-c(+) -> psi(2S)pi(+)

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Study of the decay (Formula presented)

Search for the FCNC charmonium decay J/ψ → D0μ+μ− + c.c

Search for the lepton flavour violating decays B0→e±μ∓ and B0s→e±μ∓ with LHCb Run 2 data