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

14th Conference on Theoretical Nuclear Physics in Italy

Coraggio, L.^1 ; Holt, J.W.^2 ; Itaco, N.^1,3 ; MacHleidt, R.^4 ; Marcucci, L.E.^5,6 ; Sammarruca, F.^4

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

Department of Physics, University of Washington, Seattle, WA 98195, United States^2

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

Department of Physics, University of Idaho, Moscow, ID 83844, United States^4

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

Dipartimento di Fisica enrico Fermi, Università di Pisa, Largo Bruno Pontecorvo 3, I-56127 Pisa, Italy^6

关键词: Body potential;    Low-energy;    Matrix elements;    Next to next to leading orders;    Nuclear matter equation of state;    Nuclear matters;    Three body;    Three-body force;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/527/1/012010/pdf
DOI  :  10.1088/1742-6596/527/1/012010

来源: IOP

【 摘 要 】

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.