TWIST-THREE DISTRIBUTION AMPLITUDES AND OCTET CURRENT DECAY CONSTANTS OF η AND η′: A QCD SUM RULE APPROACH

被引：0
|
作者：
Singh, J. P. [1 ]
机构：
[1] Maharaja Sayajirao Univ Baroda, Fac Sci, Dept Phys, Vadodara 390002, Gujarat, India
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS E | 2009年 / 18卷 / 5-6期
关键词：
D O I：
10.1142/S0218301309013531
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
We investigate twist-three distribution amplitudes (DAs) of eta and eta' using QCD sum rules. Zeroth moments of light quark DAs of eta and eta' are evaluated and compared with those found in other approaches. The decay constants of the octet axial vector current in the eta and eta' system are also estimated.
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页码：1318 / 1323
页数：6
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