Experimental evaluation of the nuclear neutron-proton contact

Abstract

The nuclear neutron-proton contact is introduced, generalizing Tan's work, and evaluated from medium energy nuclear photodisintegration experiments. To this end we reformulate the quasi-deuteron model of nuclear photodisintegration and establish the bridge between the Levinger constant and the contact. Using experimental evaluations of Levinger's constant we extract the value of the neutron-proton contact in finite nuclei and in symmetric nuclear matter. Assuming isospin symmetry we propose to evaluate the neutron-neutron contact through measurement of photonuclear spin correlated neutron-proton pairs.

References in corpus (8)

• Probing Cold Dense Nuclear Matter
• Generalized Virial Theorem and Pressure Relation for a strongly correlated Fermi gas
• Molecular Probe of Pairing in the BEC-BCS Crossover
• Evidence for the Strong Dominance of Proton-Neutron Correlations in Nuclei
• Verification of universal relations in a strongly interacting Fermi gas
• Number of closed-channel molecules in the BEC-BCS crossover
• Measurement of the Homogeneous Contact of a Unitary Fermi gas
• Universal Relations for Identical Bosons from 3-Body Physics

Cited by in corpus (6)

• Towards Understanding Astrophysical Effects of Nuclear Symmetry Energy
• Spectral response and contact of the unitary Fermi gas
• The isospin quartic term in the kinetic energy of neutron-rich nucleonic matter
• Comparative study of one-dimensional Bose and Fermi gases with contact interactions from the viewpoint of universal relations for correlation functions
• Universality of many-body two-nucleon momentum distributions: the correlated nucleon spectral function of complex nuclei revisited
• Short range correlations - The important role of few-body dynamics in many-body systems