COLOR-OCTET INTRINSIC CHARM IN ETA' AND B-]ETA'X DECAYS

Authors
Citation
F. Yuan et Kt. Chao, COLOR-OCTET INTRINSIC CHARM IN ETA' AND B-]ETA'X DECAYS, Physical review. D. Particles and fields, 56(5), 1997, pp. 2495-2498
Citations number
20
Categorie Soggetti
Physics, Particles & Fields
ISSN journal
05562821
Volume
56
Issue
5
Year of publication
1997
Pages
2495 - 2498
Database
ISI
SICI code
0556-2821(1997)56:5<2495:CICIEA>2.0.ZU;2-0
Abstract
The color-octet mechanism for the decay B-->eta'X is proposed to expla in the large branching ratio of B(B-->eta'X)similar to 1x10(-3) recent ly announced by CLEO. We argue that the inclusive eta' production in B decays may dominantly come from the Cabibbo-favored b-->(<(cc)over ba r>)(8)s process where the <(cc)over bar> pair is in a color-octet conf iguration, and followed by the nonperturbative transition (<(cc)over b ar>)(8)-->eta'X. The color-octet intrinsic charm component in the high er Fock states of eta' is crucial and is induced by the strong couplin g of eta' to gluons via the QCD axial anomaly.