A Measurement of the mean lifetimes of charged and neutral B hadrons
(1993) Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics — Vol. 312, n° 1-2, p. 253-266 (1993)
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- Abstract
- The decays of B-hadrons have been reconstructed using the charged particles recorded in the DELPHI silicon microstrip detector. The sum of the charges of the secondaries determines the charge of the B-hadron parent. Some 232 114 multihadronic Z0 decays recorded during the 1991 run of LEP at centre-of-mass energies between 88.2 GeV and 94.2 GeV yield 253 B-hadron candidates with well-measured charge. From these the mean lifetimes of neutral and charged B-hadrons are found to be 1.44±0.21 (stat.)±0.14(syst.) ps and 1.56±0.19(stat.)±0.13(syst.) ps respectively. The ratio of their lifetimes is 1.09−0.23+0.28 (stat.) ± 0.11(syst.). Under some assumptions on the abundance and lifetime of the Λb0 and Bs0 states, the B0 and B+ lifetimes are inferred.
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Abreu, P., Cortina Gil, E., DELPHI Collaboration, & et al. (1993). A Measurement of the mean lifetimes of charged and neutral B hadrons. Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics, 312(1-2), 253-266. https://doi.org/10.1016/0370-2693(93)90520-R (Original work published 1993)