Title of article
Double neutral pion photoproduction at threshold
Author/Authors
V Bernard، نويسنده , , N Kaiser، نويسنده , , Ulf-G Mei?ner، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 1996
Pages
5
From page
19
To page
23
Abstract
We consider the chiral expansion of the threshold amplitude for the reaction γp → π0π0p to order O(Mπ2). We substantiate a claim that this photoproduction channel is significantly enhanced close to threshold due to pion loops. A precise measurement of the corresponding cross sections is called for which allows to test chiral perturbation theory.
Journal title
PHYSICS LETTERS B
Serial Year
1996
Journal title
PHYSICS LETTERS B
Record number
906816
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