LARGE-N-C RELATIONS AMONG ISGUR-WISE FUNCTIONS

Authors
Citation
De. Brahm et J. Walden, LARGE-N-C RELATIONS AMONG ISGUR-WISE FUNCTIONS, Modern physics letters A, 12(5), 1997, pp. 357-362
Citations number
23
Categorie Soggetti
Physics, Nuclear","Physics, Particles & Fields","Physycs, Mathematical
Journal title
ISSN journal
02177323
Volume
12
Issue
5
Year of publication
1997
Pages
357 - 362
Database
ISI
SICI code
0217-7323(1997)12:5<357:LRAIF>2.0.ZU;2-W
Abstract
We investigate the relations that must hold among baryonic Isgur-Wise functions eta(i) in the large-N-c limit from unitarity constraints, an d compare to those found by Chow using the Skyrme model [or SU(4)]. Gi ven the exponential dropoff of the eta(i) away from threshold, unitari ty requires only that the usual normalization conditions hold at omega = 1, and that eta = eta(i) near threshold. Our results are consistent with, but less powerful than, the Skyrme model relations. This shows that large-N-c analyses comprise more than just unitarity constraints.