Measurement of the Bc+ meson lifetime using the decay mode Bc+ --> J/Psie+nue.

Journal article

We present a measurement of the Bc+ meson lifetime in the decay mode Bc+ --> J/Psie+nue using the Collider Detector at Fermilab II detector at the Fermilab Tevatron Collider. From a sample of about of 360 pb(-1) of pp collisions at square root of s = 1.96 TeV, we reconstruct J/Psie+ pairs with invariant mass in the kinematically allowed range 4< M(J/Psie) < 6 GeV/c2. A fit to the decay-length distribution of 238 signal events yields a measured Bc+ meson lifetime of 0.463(-0.065)(+0.073)(stat) +/- 0.036(syst) ps.

Authors: Abulencia, A; Acosta, D; Adelman, J; Affolder, T; Akimoto, T

• Publication status: Published
• Journal: Physical Review Letters
• Volume: 97
• Issue: 1
• Pages: 012002
• Publication date: 2006-07-01
• DOI: 10.1103/physrevlett.97.012002
• EISSN: 1079-7114
• ISSN: 0031-9007
• Language: English
• Keywords: CDF Collaboration