B(c) and b anti-b c anti-c at the Z0 boson pole

Kiselev, V.V.; Likhoded, A.K.; Shevlyagin, M.V.

doi:10.1007/BF01577546

B(c) and b anti-b c anti-c at the Z0 boson pole

1994

10 pages

Published in:

Z.Phys.C 63 (1994) 77-86

DOI:

10.1007/BF01577546

reference search47 citations

Citations per year

Abstract: (Springer)

The cross-section for the production of

b\bar bc\bar c

quarks ine+e− annihilation, that proves to be at a level of

\sigma (e^ +e^ -\to b\bar bc\bar c)/\sigma (e^ +e^ -\to b\bar b) \sim 10^{ - 2}

for

\sqrt s= M_Z

is calculated within the frames of the QCD perturbation theory. The cross sections for the associated production of 1S-and 2S-wave states ofBc-meson in the reaction

e^ +e^ -\to B_c b\bar c

were calculated in the nonrelativistic model of a heavy quarkonium. The number ofΛbc-hyperons to be expected at LEP is estimated on the basis of the assumption on quark-hadron duality.

electron positron: annihilation
annihilation: electron positron
bottom
charm
quark: electroproduction
electroproduction: quark
final state: (2quark 2antiquark)
(2quark 2antiquark): final state
channel cross section
quarkonium: nonrelativistic

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