Large {ital N}{sub {ital c}} universality of the baryon Isgur-Wise form factor: The group theoretical approach

Journal Article · Mon Jul 01 04:00:00 EDT 1996 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.54.873· OSTI ID:285788

Chow, C ^[1]

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1. Newman Laboratory of Nuclear Studies, Cornell University, Ithaca, New York 14853 (United States)

In a previous article, it was proved in the framework of the chiral soliton model that the same Isgur-Wise form factor describes the semileptonic {Lambda}{sub {ital b}}{r_arrow}{Lambda}{sub {ital c}} and {Sigma}{sub {ital b}}{sup ({asterisk})}{r_arrow}{Sigma}{sub {ital c}}{sup ({asterisk})} decays in the large {ital N}{sub {ital c}} limit. It is shown here that this result is in fact independent of the chiral soliton model and is solely the consequence of the spin-flavor SU(4) symmetry which arises in the baryon sector in the large {ital N}{sub {ital c}} limit. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 285788
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 1 Vol. 54; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BARYONS
CHIRAL SYMMETRY
COLOR MODEL
FLAVOR
FORM FACTORS
GROUP THEORY
LAMBDA B NEUTRAL BARYONS
LAMBDA C PLUS BARYONS
SEMILEPTONIC DECAY
SIGMA BARYONS
SIGMA C-2455 BARYONS
SPIN
SU-4 GROUPS