2025/11/27 by P. Papakonstantinou, Papakonstantinou, Panagiota, E. Krotscheck +3
Physics and Astronomy · #Nuclear physics research studies #Pulsars and Gravitational Waves Research #Quantum Chromodynamics and Particle Interactions
paper · pdf · doi:10.48550/arxiv.2512.00099
We apply a large-scale summation of Feynman diagrams, including the class of parquet diagrams plus important contributions outside the parquet class, for calculating effective pairing interactions and subsequently the superfluid gap in P-wave pairing in neutron matter. We use realistic nucleon-nucleon interactions of the v8 type and perform calculations up to a Fermi momentum of 1.8 fm-1. We find that many-body correlations lead to a strong reduction of the spin-orbit interaction, and, therefore, to a radical suppression of the 3P2-3F2 gap and an enhancement of the 3P0 gap.