The Λb polarization in hadronic Z decays is measured in semileptonic decays from the average energies of the charged lepton and the neutrino. In a data sample of approximately 3 million hadronic Z decays collected by the ALEPH detector at LEP between 1991 and 1994, 462 ± 31 Λb candidates are selected using (Λπ+)-lepton correlations. From this event sample, the Λb polarization is measured to be PΛb = -0.23+0.24-0.20 (stat.)+0.08-0.07(syst.).

Buskulic, D., Casper, D., Debonis, I., Decamp, D., Ghez, P., Coy, C., et al. (1996). Measurement of the Λb polarization in Z decays. PHYSICS LETTERS. SECTION B, 365(1-4), 437-447 [10.1016/0370-2693(95)01433-0].

Measurement of the Λb polarization in Z decays

CARPINELLI, Massimo;
1996

Abstract

The Λb polarization in hadronic Z decays is measured in semileptonic decays from the average energies of the charged lepton and the neutrino. In a data sample of approximately 3 million hadronic Z decays collected by the ALEPH detector at LEP between 1991 and 1994, 462 ± 31 Λb candidates are selected using (Λπ+)-lepton correlations. From this event sample, the Λb polarization is measured to be PΛb = -0.23+0.24-0.20 (stat.)+0.08-0.07(syst.).
Articolo in rivista - Articolo scientifico
Physics
English
1996
365
1-4
437
447
none
Buskulic, D., Casper, D., Debonis, I., Decamp, D., Ghez, P., Coy, C., et al. (1996). Measurement of the Λb polarization in Z decays. PHYSICS LETTERS. SECTION B, 365(1-4), 437-447 [10.1016/0370-2693(95)01433-0].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/390212
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