DETERMINATION OF THE HEAVY-QUARK EFFECTIVE THEORY PARAMETERS FROM THEB-]X(S)GAMMA DECAY

Authors
LI HN YU HL
Citation
Hn. Li et Hl. Yu, DETERMINATION OF THE HEAVY-QUARK EFFECTIVE THEORY PARAMETERS FROM THEB-]X(S)GAMMA DECAY, Physical review. D. Particles and fields, 55(5), 1997, pp. 2833-2836
Citations number
19
Categorie Soggetti
Physics, Particles & Fields
Journal title
Physical review. D. Particles and fields → ACNP
ISSN journal
05562821
Volume
55
Issue
5
Year of publication
1997
Pages
2833 - 2836
Database
ISI
SICI code
0556-2821(1997)55:5<2833:DOTHET>2.0.ZU;2-3
Abstract
We combine the resummations for radiative corrections and for heavy qu ark expansion to study the inclusive radiative decay B-->X(s) gamma. T he infrared renormalon ambiguity is also taken into account. Including both theoretical and experimental uncertainties, we determine the all owed domain for the HQET parameters <(Lambda)over bar> and lambda(1) c entered at <(Lambda)over bar> = 0.65 GeV and lambda(1) = - 0.71 GeV2.