The ρ-meson and related meson wave functions in QCD sum rules with nonlocal condensates

被引：76
|
作者：
Bakulev, AP [1 ]
Mikhailov, SV [1 ]
机构：
[1] Joint Inst Nucl Res, Bogoliubouv Lab Theoret Phys, Dubna 141980, Russia
来源：
PHYSICS LETTERS B | 1998年 / 436卷 / 3-4期
关键词：
QCD sum rules; nonlocal condensates; meson wave functions; leptonic decay constants;
D O I：
10.1016/S0370-2693(98)00868-5
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We apply the nonlocal condensate formalism to construct generalized sum rules (including O(alpha(s))-radiative corrections) for pi-, rho- and rho '-meson wave functions of twist 2. Besides, we predict the lepton decay constant f(rho ') and estimate the mass of rho '-meson. For all these mesons we obtain the first 10 moments of longitudinal wave functions, suggest the models for them and discuss their properties. We consider the peculiarities of the QCD sum rules with nonlocal condensates for transverse rho- and b(1)-meson wave functions. These results are compared with those found by Ball and Braun and by Chernyak and Zhitnitsky. (C) 1998 Published by Elsevier Science B.V. All rights reserved.
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页码：351 / 362
页数：12
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