Isospin-breaking two-nucleon force with explicit Delta-excitations

Details Isospin-breaking two-nucleon force with explicit Delta-excitations Isospin-breaking two-nucleon force with explicit Delta-excitations

2008-01-08

arxiv.org/abs/0801.1299v1

Phys.Rev.C77:034006,2008

Physics

Nuclear Physics

Nuclear Theory

10 pages, 4 figures

Scientific paper

10.1103/PhysRevC.77.034006

We study the leading isospin-breaking contributions to the two-nucleon
two-pion exchange potential due to explicit Delta degrees of freedom in chiral
effective field theory. In particular, we find important contributions due to
the delta mass splittings to the charge symmetry breaking potential that act
opposite to the effects induced by the nucleon mass splitting.

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