$\Lambda_b$ polarization in the $Z$ boson decays - INSPIRE

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$\Lambda_b$ polarization in the $Z$ boson decays

V.A. Saleev
(
- Samara State U.
)

Feb, 1997

6 pages

Published in:

Phys.Lett.B 426 (1998) 384-392

e-Print:

hep-ph/9702370 [hep-ph]

DOI:

10.1016/S0370-2693(98)00248-2

Report number:

SSU-HEP-97-01,
SSU-HEP-97-1,
SAMARA,
SEPTEMBER --1997

View in:

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Abstract:

In the framework of the perturbative QCD and the diquark model of baryons we have obtained the fragmentation functions for heavy quark that split into polarized Lambda_b baryons. We predict the longitudinal polarization asymmetry for the prompt Lambda_b produced in electron-positron annihilation at the Z resonance and estimate the spin-1/2 and spin-3/2 beauty baryon production rate.

Note:

LaTeX, 8 pages plus 6 figures using psfig.sty •
Talk was presented at QFTHEP-97, Samara, September 1997

electron positron: annihilation
Z0: electroproduction
Z0: hadronic decay
Z0: cascade decay
Lambda/b0: polarization
quantum chromodynamics: perturbation theory
baryon: model
bottom: diquark
mass: diquark
bottom: fragmentation function

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