In 451 000 hadronic Z0 decays, recorded with the ALEPH detector at LEP, the yields of Λℓ- and Λℓ+ combinations are measured. Semileptonic decays of b baryons result in a signal of 122± 18 (stat.)-23 +22 (syst.) Λℓ- combinations. From a fit to the impact parameter distributions of the leptons in the Λℓ- sample, the lifetime of b baryons is measured to be 1.12-0.29 +0.32 (stat.) ±0.16 (syst.) ps.

Buskulic, D., Decamp, D., Goy, C., Lees, J., Minard, M., Mours, B., et al. (1992). A measurement of the b baryon lifetime. PHYSICS LETTERS. SECTION B, 297(3-4), 449-458 [10.1016/0370-2693(92)91284-G].

A measurement of the b baryon lifetime

CARPINELLI, Massimo;
1992

Abstract

In 451 000 hadronic Z0 decays, recorded with the ALEPH detector at LEP, the yields of Λℓ- and Λℓ+ combinations are measured. Semileptonic decays of b baryons result in a signal of 122± 18 (stat.)-23 +22 (syst.) Λℓ- combinations. From a fit to the impact parameter distributions of the leptons in the Λℓ- sample, the lifetime of b baryons is measured to be 1.12-0.29 +0.32 (stat.) ±0.16 (syst.) ps.
Articolo in rivista - Articolo scientifico
HEAVY FLAVOR PRODUCTION; SEMILEPTONIC DECAYS; QUARK-MODEL; MESONS; ALEPH;
English
449
458
10
Buskulic, D., Decamp, D., Goy, C., Lees, J., Minard, M., Mours, B., et al. (1992). A measurement of the b baryon lifetime. PHYSICS LETTERS. SECTION B, 297(3-4), 449-458 [10.1016/0370-2693(92)91284-G].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/390438
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