Realistic Few-Body Physics in the $dd\to \alpha {\pi }^0$ Reaction

Abstract

We use realistic two- and three-nucleon interactions in a hybrid chiral-perturbation-theory calculation of the charge-symmetry-breaking reaction $dd\to \alpha {\pi }^0$ to show that a cross section of the experimentally measured size can be obtained using LO and NNLO pion-production operators. This result supports the validity of our power counting scheme and demonstrates the necessity of using an accurate treatment of ISI and FSI.

Comments: 11 pages, 1 figure