CRYSTAL BALL EXPERIMENT ON GAMMA-GAMMA-]PI-0-PI-0 AND NEUTRAL PION POLARIZABILITY

被引：13
|
作者：
KALOSHIN, AE [1 ]
SEREBRYAKOV, VV [1 ]
机构：
[1] NOVOSIBIRSK MATH INST,630090 NOVOSIBIRSK,USSR
来源：
PHYSICS LETTERS B | 1992年 / 278卷 / 1-2期
关键词：
D O I：
10.1016/0370-2693(92)90734-L
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We obtain the most general and simple unitary formulae for the amplitudes gamma-gamma --> pi-pi near threshold which are parameterized using the pion polarizability. Describing the Crystal Ball data [Crystal Ball Collab., H. Marsiske et al., Phys. Rev. D 41 (1990) 3324] gamma-gamma --> pi(0)pi(0) by means of them we get (alpha - beta)pi(0) = (1.0 +/- 2.5) x 10(-42) cm3 for the pi(0) polarizability.
引用
收藏
页码：198 / 201
页数：4
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