following our previous presentation of a new three-fold symmetry for derivation of the magic numbers of nuclei based upon a quark state model of nuclei, here the nuclear binding energy is obtained from such new perspective. from this point of view, since each nucleon is made of three quarks, the binding energy of nuclei contains a volume term proportional to 3a (a is mass number). by considerin...

We present a perturbative calculation of the neutron matter equation of state based on low-momentum twoand three-nucleon interactions. Our results are compared to the model-independent virial equation of state and to variational calculations, and we provide theoretical error estimates by varying the cutoff used to regulate nuclear interactions. In addition, we study the dependence of the BCS S0...

Inspired by ultracold atomic physics, nuclear physics and color superconductivity, the fermion pairing between different species with mismatched Fermi surfaces prompted great interest1,2,3,4,5,6,7,8,9,10,11,12,13 in recent experimental and theoretical studies. In conventional fermion superfluid the ground state is well described by the BCS theory, while for asymmetric fermion superfluid with do...

This chapter provides a review of microscopic theories of pairing in nuclear systems and neutron stars. Special attention is given to the mean-field BCS theory and its extensions to include effects of polarization of the medium and retardation of the interactions. Superfluidity in nuclear systems that exhibit isospin asymmetry is studied. We further address the crossover from the weak-coupling ...

Nucleon-nucleon (NN) interactions are well constrained for relative momenta k 2 fm−1 by existing scattering data [1]. The model dependences for larger momenta can be seen, for instance, in the P2 superfluid pairing gaps for Fermi momenta kF > 2 fm−1 [2]. In Ref. [3], we study in detail the dependence of the S0 superfluid gap on nuclear interactions at the BCS level, and on the resolution scale....

A semi-phenomenological model of a many-particle system 4He atoms is proposed, in which helium atom considered as complex consisting nucleus and bound pair electrons the singlet state. At zero temperature, there are two Bose-Einstein condensates particles with opposite charges, namely, condensate positively charged nuclei negatively electron pairs. It shown that such exist excitation branches: ...

Pulsars are rotating neutron stars that are renowned for their timing precision, although glitches can interrupt the regular timing behavior when these stars are young. Glitches are thought to be caused by interactions between normal and superfluid matter in the star. We update our recent work on a new technique using pulsar glitch data to constrain superfluid and nuclear equation of state mode...