Compton scattering on a pion and absence of off-shell effects

被引：0
|
作者：
Kaloshin, AE [1 ]
机构：
[1] Irkutsk State Univ, Inst Appl Phys, Irkutsk 664003, Russia
来源：
PHYSICS OF ATOMIC NUCLEI | 1999年 / 62卷 / 11期
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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：
It has been shown that off-mass-shell contributions to the amplitude of Compton scattering on a pion may exist only in some individual diagrams. Via one-loop calculations, it has been verified that these contributions are completely canceled in the total gauge-invariant amplitude. This explains, among other things, some results obtained in chiral perturbation theory to order p(4), but the cancellation in question is of a more general character not associated with chiral symmetry.
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页码：1899 / 1904
页数：6
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