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A New Class of Three Nucleon Forces and their Implications

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arxiv 2411.00097 v1 pith:HXDXKO7A submitted 2024-10-31 nucl-th astro-ph.HEhep-lathep-ph

A New Class of Three Nucleon Forces and their Implications

classification nucl-th astro-ph.HEhep-lathep-ph
keywords forcesmatternuclearclassimplicationsneutronpionsthree-nucleon
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We identify a new class of three-nucleon forces that arises in the low-energy effective theory of nuclear interactions including pions. We estimate their contribution to the energy of neutron and nuclear matter and find that it can be as important as the leading-order three-nucleon forces previously considered in the literature. The magnitude of this force is set by the strength of the coupling of pions to two nucleons and is presently not well constrained by experiments. The implications for nuclei, nuclear matter, and the equation of state of neutron matter are briefly discussed.

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Cited by 2 Pith papers

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