SPECTRAL FUNCTIONS FOR HEAVY LIGHT CURRENTS AND FORM-FACTOR RELATIONSIN HQET

Citation
Ca. Dominguez et al., SPECTRAL FUNCTIONS FOR HEAVY LIGHT CURRENTS AND FORM-FACTOR RELATIONSIN HQET, Physics letters. Section B, 309(1-2), 1993, pp. 152-156
Citations number
17
Categorie Soggetti
Physics
Journal title
ISSN journal
03702693
Volume
309
Issue
1-2
Year of publication
1993
Pages
152 - 156
Database
ISI
SICI code
0370-2693(1993)309:1-2<152:SFFHLC>2.0.ZU;2-X
Abstract
We derive relations among form factors describing the current-induced transitions: (vacuum) --> B, B, Bpi, B*pi, Brho and B * rho using hea vy quark symmetry. The results are compared to corresponding form fact or relations following from identities between scalar and axial vector , and pseudoscalar and vector spectral functions in the heavy quark li mit.