SLOPE OF THE ISGUR-WISE FUNCTION FROM A QSSR CONSTRAINT ON THE YB(B)OVER-BAR COUPLINGS

被引：18

作者：

CAPRINI, I

机构：

[1] Institute for Atomic Physics, Bucharest

来源：

PHYSICS LETTERS B | 1994年 / 339卷 / 1-2期

关键词：

D O I：

10.1016/0370-2693(94)91153-3

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We derive optimal upper and lower bounds on the slope of the Isgur-Wise function at the zero recoil point in terms of the sum of the YB $$($) over bar B couplings, estimated recently from a QCD Spectral Sum Rule (QSSR). The problem is solved by means of a duality theorem in functional optimization. Optimal correlations between the slope and the convexity parameters of the Isgur-Wise function with the same input are also obtained.

引用

页码：187 / 193

页数：7

共 14 条

[1] MODEL-INDEPENDENT DISPERSION APPROACH TO PROTON COMPTON-SCATTERING [J].