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Measurement of the B-c(+) meson lifetime using the decay mode B-c(+)-> J/psi e(+)nu(e)

Abulencia, A; Acosta, D; Adelman, J; Affolder, T; Akimoto, T; Albrow, MG; Ambrose, D; ... Zucchelli, S; + view all (2006) Measurement of the B-c(+) meson lifetime using the decay mode B-c(+)-> J/psi e(+)nu(e). Physical Review Letters , 97 (1) , Article 012002. 10.1103/PhysRevLett.97.012002. Green open access

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Abstract

We present a measurement of the B-c(+) meson lifetime in the decay mode B-c(+) -> J/psi e(+) nu(e) using the Collider Detector at Fermilab II detector at the Fermilab Tevatron Collider. From a sample of about 360 pb(-1) of pp collisions at root s = 1.96 TeV, we reconstruct J/psi e(+) pairs with invariant mass in the kinematically allowed range 4 < M-J/psi e < 6 GeV/c(2). A fit to the decay-length distribution of 238 signal events yields a measured B-c(+) meson lifetime of 0.463(-0.065)(+0.073) (stat) +/- 0.036 (syst) ps.

Type: Article
Title: Measurement of the B-c(+) meson lifetime using the decay mode B-c(+)-> J/psi e(+)nu(e)
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.97.012002
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.97.012002
Language: English
Additional information: © 2006 The American Physical Society
Keywords: PHYSICS
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/131790
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