On the D*Dπ and (B)over-bar*(B)over-barπ coupling constants in the effective quark model with chiral symmetry

被引：0
|
作者：
Ivanov, AN
Troitskaya, NI
机构：
[1] Vienna Univ Technol, Inst Kernphys, A-1040 Vienna, Austria
[2] State Tech Univ, Dept Theoret Phys, St Petersburg 195251, Russia
来源：
NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA A-NUCLEI PARTICLES AND FIELDS | 1998年 / 111卷 / 01期
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中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
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摘要：
The coupling constants g(D*D pi) and g((B) over bar*(B) over bar pi) Of the D*D pi and B*B pi strong interactions are computed in the effective quark model with chiral symmetry incorporating heavy quark effective theory (HQET) and chiral perturbation theory at the quark level (CHPT)(q) with linear realization of chiral U(3) x U(3) symmetry. We predict g(D*D pi) = 5.2 and g((B) over bar*(B) over bar pi) = 14.3. The 1/M-c corrections to the constant g(D*D pi) are calculated and make up less than 1%. The contribution of 1/M-b corrections to the constant g((B) over bar*(B) over bar pi) is much less.
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页码：59 / 65
页数：7
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