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ID 14132
file
creator
Guo, X.-H.
Muta, Taizo
NDC
Astronomy. Space sciences
abstract
In the heavy quark limit, the heavy baryon ΛQ (Q=b or c) can be regarded as composed of a heavy quark and a scalar light diquark which has good spin and flavor quantum numbers. Based on this picture we establish the Bethe-Salpeter (BS) equation for ΛQ in the leading order of 1/mQ expansion. With the kernel containing both the scalar confinement and one-gluon-exchange terms we solve the BS equation numerically. The Isgur-Wise function for Λb→Λc is obtained numerically from our model. A comparison with other model calculations is also presented. It seems that the Isgur-Wise function for Λb→Λc drops faster than that for B→D. The differential and total decay widths for Λb→Λclν̅ are given in the limit mb,c→∞.
journal title
Physical Review D
volume
Volume 54
issue
Issue 7
start page
4629
end page
4634
date of issued
1996-10-01
publisher
American Physical Society
issn
1550-7998
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
publisher
rights
Copyright (c) 1996 The American Physical Society
relation is version of URL
http://dx.doi.org/10.1103/PhysRevD.54.4629
department
Graduate School of Science