ANGULAR-DISTRIBUTION AND POLARIZATION OF PHOTONS IN THE INCLUSIVE DECAY LAMBDA(B)-]X(S)GAMMA

Citation
M. Gremm et al., ANGULAR-DISTRIBUTION AND POLARIZATION OF PHOTONS IN THE INCLUSIVE DECAY LAMBDA(B)-]X(S)GAMMA, Physics letters. Section B, 355(3-4), 1995, pp. 579-583
Citations number
11
Categorie Soggetti
Physics
Journal title
ISSN journal
03702693
Volume
355
Issue
3-4
Year of publication
1995
Pages
579 - 583
Database
ISI
SICI code
0370-2693(1995)355:3-4<579:AAPOPI>2.0.ZU;2-G
Abstract
We study the angular distribution of photons produced in the inclusive decay of a polarized Lambda(b), Lambda(b) --> X(s) gamma, using the t echnique of heavy quark effective theory. Finite non-perturbative corr ections are obtained relative to the free quark decay b --> s gamma. T hese corrections affect significantly the intensity and polarization o f photons emitted at small angles relative to the Lambda(b) spin direc tion.