On collinearization of quarks in the quark-gluon decays of heavy orthoquarkonia

Details On collinearization of quarks in the quark-gluon decays of heavy orthoquarkonia On collinearization of quarks in the quark-gluon decays of heavy orthoquarkonia

1994-04-13

arxiv.org/abs/hep-ph/9404260v1

Mod.Phys.Lett. A9 (1994) 115-121

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, LaTeX, Yaroslavl, Yaroslavl State University preprint YARU-HE-93/01. (the figures are not included)

Scientific paper

The decay of heavy orthoquarkonium into quark-antiquark pair and two gluons is considered. The differential probability of the decay in the tree approximation is calculated and the probability distributions of quarks and gluons are obtained. The collinear enhancement of the bottomonium decay is shown to take place at the u\={u}--, d\={d} and s\={s}-- pair production and to be absent at the c\={c}-- production. Some other peculiarities of the considered decays are discussed. (Published in Mod.Phys.Lett A 9 (1994) 115).

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