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Measurement of the Bc-meson lifetime in the decay Bc-?J/?p

Abstract: The lifetime of the B?c meson is measured using 272 exclusive B?c?J/?(??+??)?? 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 ?(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.

Authorship: Aaltonen T., Álvarez González B., Amerio S., Amidei D., Anastassov A., Annovi A., Antos J., Apollinari G., Appel J.A., Arisawa T., Artikov A., Asaadi J., Ashmanskas W., Auerbach B., Aurisano A., Azfar F., Badgett W., Bae T., Barbaro-Galtieri A., Barnes V.E., Barnett B.A., Barria P., Bartos P., Bauce M., Bedeschi F., Behari S., Bellettini G., Bellinger J., Benjamin D., Beretvas A., Bhatti A., Bisello D., Bizjak I., Bland K.R., Bl

Fuente: Physical Review D, 2013, 87, 011101(R)

Publisher: American Physical Society

Year of publication: 2013

No. of pages: 9

Publication type: Article

DOI: 10.1103/PhysRevD.87.011101

ISSN: 1550-7998,1550-2368,2470-0010,2470-0029

Publication Url: https://doi.org/10.1103/PhysRevD.87.011101

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