Isospin violation in the two-nucleon system
E. Epelbaum, Ulf-G. Meißner
Abstract
I discuss isospin violation in an effective field theory appraoch of the nucleon-nucleon interaction. The observed leading order charge independence breaking is explained in terms of one-pion exchange together with a four-nucleon contact term. A general classification scheme of corrections to this leading order results is presented and an explanation is offered why charge-dependent pion-nucleon coupling constants can not play a role in the observed isospin violation in the NN scattering lengths. Charge symmetry breaking, the size of πγ-exchange graphs and the pionless theory are also discussed.
Create a lesson
Related papers
Scale Invariance and Compact Star Matter
Hyun Kyu Lee, Won-Gi Paeng
Optimizing artificial neural networks for dipole strength predictions in light nuclei
Tim Egert, Weiguang Jiang, Sonia Bacca
Coupled-channel scattering from artificial confinement
Tafat Weiss Attia, Itay Horin, Betzalel Bazak
From twelve to three active qubits: Ancilla-recycled rodeo filtering for trapped neutron-proton scattering
Myeong-Hwan Mun, Jubin Park, Myung-Ki Cheoun et al.
Single-particle potentials in asymmetric nuclear matter within the LOCV framework
Zahra Ziarati, Hamidreza Moshfegh
Frontier Questions and Emerging Directions in Nuclear Science and Technology
Yu-Gang Ma