The lifetime of the B-c(-) meson is measured using 272 exclusive B-c(-) -> J/psi (-> mu(+) mu(-))pi(-) 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 tau(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.

T. Aaltonen, B. Álvarez González, S. Amerio, D. Amidei, A. Anastassov, A. Annovi, et al. (2013). Measurement of the B_{c}^{-} meson lifetime in the decay B_{c}^{-}→J/ψπ^{-}. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 87, 011101-1-011101-9 [10.1103/PhysRevD.87.011101].

Measurement of the B_{c}^{-} meson lifetime in the decay B_{c}^{-}→J/ψπ^{-}

BRIGLIADORI, LUCA;CASTRO, ANDREA;DENINNO, MARIA MADDALENA;MAZZANTI, PAOLO;MOGGI, NICCOLO';MUSSINI, MANUEL;RIMONDI, FRANCO;ZUCCHELLI, STEFANO
2013

Abstract

The lifetime of the B-c(-) meson is measured using 272 exclusive B-c(-) -> J/psi (-> mu(+) mu(-))pi(-) 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 tau(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.
2013
T. Aaltonen, B. Álvarez González, S. Amerio, D. Amidei, A. Anastassov, A. Annovi, et al. (2013). Measurement of the B_{c}^{-} meson lifetime in the decay B_{c}^{-}→J/ψπ^{-}. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 87, 011101-1-011101-9 [10.1103/PhysRevD.87.011101].
T. Aaltonen;B. Álvarez González;S. Amerio;D. Amidei;A. Anastassov;A. Annovi;J. Antos;G. Apollinari;J. A. Appel;T. Arisawa;A. Artikov;J. Asaadi;W. Ashm...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/232070
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