Rho Meson Distribution Amplitudes from QCD Sum Rules with Nonlocal Condensates

被引：15
|
作者：
Pimikov, A. V. [1 ,2 ]
Mikhailov, S. V. [2 ]
Stefanis, N. G. [3 ]
机构：
[1] Univ Valencia, CSIC, IFIC, Dept Fis Teor, E-46100 Valencia, Spain
[2] Joint Inst Nucl Res, Bogoliubov Lab Theoret Phys, Dubnam 141980, Russia
[3] Ruhr Univ Bochum, Inst Theoret Phys 2, D-44780 Bochum, Germany
来源：
FEW-BODY SYSTEMS | 2014年 / 55卷 / 5-7期
关键词：
ASYMPTOTIC-BEHAVIOR; EXCLUSIVE PROCESSES; WAVE-FUNCTION; LIGHT MESONS; PION; PHOTON;
D O I：
10.1007/s00601-014-0815-5
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The leading-twist distribution amplitude for the longitudinal rho-meson was studied using QCD Sum Rules with nonlocal condensates and a spectral density which includes next-to-leading order radiative corrections. The obtained profile is compared with results from standard QCD sum rules, lattice QCD, holographic QCD, a light-front quark model, and the instanton liquid model. Preliminary estimates for the first two moments of the transverse rho-meson distribution amplitude are also given.
引用
收藏
页码：401 / 406
页数：6
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