Measurement of the Λb polarization in Z decays

Buskulic, D. and Finch, Alexander (1996) Measurement of the Λb polarization in Z decays. Physics Letters B, 365 (1-4). pp. 437-447. ISSN 0370-2693

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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 Λb = −0.23−0.20+0.24(stat.)−0.07+0.08(syst.).

Item Type:
Journal Article
Journal or Publication Title:
Physics Letters B
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3106
Subjects:
ID Code:
64058
Deposited By:
Deposited On:
09 May 2013 15:50
Refereed?:
Yes
Published?:
Published
Last Modified:
03 Mar 2020 08:29