ROLE OF 4-QUARK OPERATORS IN THE INCLUSIVE LAMBDA(B) DECAYS

Authors
COLANGELO P DEFAZIO F
Citation
P. Colangelo et F. Defazio, ROLE OF 4-QUARK OPERATORS IN THE INCLUSIVE LAMBDA(B) DECAYS, Physics letters. Section B, 387(2), 1996, pp. 371-378
Citations number
34
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
387
Issue
2
Year of publication
1996
Pages
371 - 378
Database
ISI
SICI code
0370-2693(1996)387:2<371:RO4OIT>2.0.ZU;2-Q
Abstract
We compute by QCD sum rules the matrix elements of the relevant four-q uark operators appearing in the expression of the Lambda(b) inclusive decay rates at the order 1/m(b)(3). The results suggest that 1/m(b)(3) corrections are not responsible of the observed difference between th e lifetime of Lambda(b) and B-d.