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Study of nucleonic matter with a consistent two- and three-body perturbative chiral interaction

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, , Citation L Coraggio et al 2014 J. Phys.: Conf. Ser. 527 012010 DOI 10.1088/1742-6596/527/1/012010

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1 Istituto Nazionale di Fisica Nucleare, Sezione di Napoli Complesso Universitario di Monte S. Angelo, Via Cintia – I-80126 Napoli, Italy

2 Department of Physics, University of Washington Seattle, Washington 98195, USA

3 Dipartimento di Fisica, Università di Napoli Federico II, Complesso Universitario di Monte S. Angelo, Via Cintia – I-80126 Napoli, Italy

4 Department of Physics, University of Idaho Moscow, Idaho 83844, USA

5 Istituto Nazionale di Fisica Nucleare, Sezione di Pisa Largo Bruno Pontecorvo 3 – I-56127 Pisa, Italy

6 Dipartimento di Fisica "Enrico Fermi", Università di Pisa, Largo Bruno Pontecorvo 3 – I-56127 Pisa, Italy

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1742-6596/527/1/012010

Abstract

We calculate perturbatively the energy per nucleon in infinite nuclear matter with a chiral N3LO (next-to-next-to-next-to-leading order) two-body potential plus a N2LO three- body force (3BF). The 3BF low-energy constants which cannot be constrained by two-body observables are chosen such as to reproduce the A = 3 binding energies and the triton Gamow- Teller matrix element. This enables to study the nuclear matter equation of state in a parameterfree approach.

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10.1088/1742-6596/527/1/012010