$pp\to pp{\pi }^0$ near threshold in pionless effective theory

Abstract

The total cross section of the $pp\to pp{\pi }^0$ reaction near threshold is calculated in pionless effective field theory with a di-baryon and external pions. The amplitudes for a leading one-body and subleading contact neutral pion production vertex are obtained including the initial and final state interactions. After estimating a low-energy constant in the contact vertex, we compare our results for the total cross section with the experimental data.

15 pages, 7 figures; 6 references added, minor revision

References in corpus (2)

• Chiral Perturbation Theory and Baryon Properties
• Two-pion-exchange contributions to the pp\to ppπ^0 reaction

Cited by in corpus (2)

• alpha-alpha Scattering in Halo Effective Field Theory
• Proton-proton fusion in pionless effective theory