Realistic Few-Body Physics in the $dd\to απ^0$ Reaction

Nogga, A.; Fonseca, A. C.; Gardestig, A.; Hanhart, C.; Horowitz, C. J.; Miller, G. A.; Niskanen, J. A.; van Kolck, U.

Realistic Few-Body Physics in the $dd\to απ^0$ Reaction

Authors

Description

We use realistic two- and three-nucleon interactions in a hybrid chiral-perturbation-theory calculation of the charge-symmetry-breaking reaction $dd\toαπ^0$ 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.
11 pages, 1 figure