2006/02/01 by A. Nogga, A. C. Fonseca, A. Gardestig +8 · 33 citations
Physics and Astronomy · #Algorithm #Chiral perturbation theory #Computer science #Nuclear physics research studies #Particle physics #Particle physics theoretical and experimental studies #Physics #Pion #Quantum Chromodynamics and Particle Interactions #nucl-th
paper · pdf · doi:10.1016/j.physletb.2006.04.058
published in Physics Letters B 639(5), 465-470 (Elsevier BV) · 11 pages, 1 figure
arxiv created 2006/02/01 · openalex publication_date 2006/07/12 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We use realistic two- and three-nucleon interactions in a hybrid chiral-perturbation-theory calculation of the charge-symmetry-breaking reaction dd→απ0 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. It also becomes evident that a full calculation requires the use of consistent chiral nuclear forces to overcome the visible model dependence of our result.