A new zero and finite temperature EOS for nucleonic and hyperonic matter from microscopic calculations

Not scheduled


Platja d'Aro, Girona, Spain


Dr Domenico Logoteta (University of Pisa)


I will report on the calculation of a new equation of state (EOS) derived from Chiral Effective Field Theory (ChEFT) for nucleonic and hyperonic matter. A new feature of this EOS is the inclusion in a consistent way of the effect of hyperonic three-body forces. I will focus in particular on the three-body force originating from the interaction between two nucleons and a Λ-hyperon (NNΛ). Such interaction has been recently derived in the framework of ChEFT at next-to-leading order (NLO). Using the many-body non relativistic Brueckner-Hartree-Fock (BHF) approach, I will discuss the calculation of the β-stable equation of state (EOS) of neutron star matter including realistic nucleon-nucleon (NN), nucleon-nucleon-nucleon (NNN), nucleon-hyperon (NY) and nucleon-nucleon-hyperon (NNY) interactions. I will show the resulting neutron stars structure. I will finally discuss the inclusion of thermal effects necessary for consistent binary neutron star merging simulations as well as for the study of core collapse supernovae.

Primary author

Dr Domenico Logoteta (University of Pisa)


Prof. Ignazio Bombaci (University of Pisa)

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