Two-pion-exchange effects in the $pp\to ppπ^0$ reaction

Details Two-pion-exchange effects in the $pp\to ppπ^0$ reaction Two-pion-exchange effects in the $pp\to ppπ^0$ reaction

2007-10-18

arxiv.org/abs/0710.3537v1

ECONFC070910:153,2007

Physics

Nuclear Physics

Nuclear Theory

talk at MENU 2007 conference, 8 pages, 1 figure, to appear in the proceedings

Scientific paper

We study the pp \to pp\pi^0 reaction near threshold based on heavy-baryon
chiral perturbation theory. We show that the two-pion-exchange diagrams give
much larger contribution than the one-pion-exchange diagram which is of lower
chiral order in Weinberg's counting scheme. We also discuss the relation of our
results to the momentum counting scheme.

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