Pairing correlations and effective mass

2008/04/18 by Satoshi Yoshida, Hiroyuki Sagawa, H. Sagawa
Physics and Astronomy · #Condensed matter physics #Effective mass (spring–mass system) #Function (biology) #Nuclear physics research studies #Pairing #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Quantum, superfluid, helium dynamics #Superconductivity #Superfluidity #nucl-th

paper · pdf · doi:10.1103/physrevc.77.054308

published as Phys.Rev.C77:054308,2008 · 14pages,5figures

arxiv created 2008/04/18 · openalex publication_date 2008/05/14 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We study the effect of effective mass on pairing correlations in the ground states of superfluid nuclei ¹²⁴Sn and ¹³⁶Sn. Various parameter sets of Skyrme interactions and relativistic Lagrangians are adopted to study pairing correlations across a wide range of effective mass. It is shown that surface-type pairing interaction gives an almost constant pairing gap as a function of the effective mass, while volume-type pairing interaction shows rather strong dependence of the pairing gap upon the effective mass. The local pair potentials of various effective interactions are also examined in relation to the effective mass.

Citations

• BCS-BEC crossover of neutron pairs in symmetric and asymmetric nuclear matter
• A New Parameterization for the Lagrangian Density of Relativistic Mean Field Theory
• Recent Progress in Quantum Hadrodynamics