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New universality of the baryon Isgur-Wise form factor in the large [ital N][sub [ital c]] limit

Journal Article · · Physical Review, D (Particles Fields); (United States)
 [1]
  1. California Institute of Technology, Pasadena, California 91125 (United States)
New universality appears for the baryon Isgur-Wise form factor in the large [ital N][sub [ital c]] limit. It is found that the semileptonic [Lambda][sub [ital b]][r arrow][Lambda][sub [ital c]] and [Sigma][sub [ital b]][sup (*)][r arrow][Sigma][sub [ital c]][sup (*)] decays are described by the same form factor, which can be calculated analytically. In the exact chiral SU(3) limit, the same form factor is applicable to semileptonic [Omega][sub [ital b]][sup (*)][r arrow][Omega][sub [ital c]][sup (*)] decays.
DOE Contract Number:
FG03-92ER40701
OSTI ID:
6643628
Journal Information:
Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 51:3; ISSN PRVDAQ; ISSN 0556-2821
Country of Publication:
United States
Language:
English