Speaker
Dr
Domenico Logoteta
(University of Pisa)
Description
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)
Co-author
Prof.
Ignazio Bombaci
(University of Pisa)
