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Measurement of the B−c meson lifetime in the decay B−c→J/ψπ−

AuthorsAaltonen, T.; Álvarez González, B.; Casal, Bruno ; Cuevas, Javier ; Gómez, G. ; Palencia, Enrique ; Rodrigo, Teresa ; Ruiz Jimeno, Alberto ; Scodellaro, Luca ; Vila, Iván ; Vilar, Rocío ; Vizán, J. ; CDF Collaboration
Issue Date2013
PublisherAmerican Physical Society
CitationPhysical Review D 87: 011101(R) (2013)
AbstractThe lifetime of the B−c meson is measured using 272 exclusive B−c→J/ψ(→μ+μ−)π− decays reconstructed in data from proton-antiproton collisions corresponding to an integrated luminosity of 6.7  fb−1 recorded by the CDF II detector at the Fermilab Tevatron. The lifetime of the B−c meson is measured to be τ(B−c)=0.452±0.048(stat)±0.027(syst)  ps. This is the first measurement of the B−c meson lifetime in a fully reconstructed hadronic channel, and it agrees with previous results and has comparable precision.
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevD.87.011101
Identifiersdoi: 10.1103/PhysRevD.87.011101
issn: 1550-7998
e-issn: 1550-2368
Appears in Collections:(IFCA) Artículos
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