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Chiral three-nucleon forces and pairing in nuclei

Journal Article · · Journal of Physics G: Nuclear and Particle Physics
 [1];  [2];  [1];  [1]
  1. ORNL
  2. French Atomic Energy Commission (CEA), Centre de Saclay, Gif sur Yvette
We present the first study of pairing in nuclei including three-nucleon forces. We perform systematic calculations of the odd-even mass staggering generated using a microscopic pairing interaction at first order in chiral low-momentum interactions. Significant repulsive contributions from the leading chiral three-nucleon forces are found. Two- and three-nucleon interactions combined account for approximately 70% of the experimental pairing gaps, which leaves room for self-energy and induced interaction effects that are expected to be overall attractive in nuclei.
Research Organization:
Oak Ridge National Laboratory (ORNL)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-00OR22725
OSTI ID:
1036667
Journal Information:
Journal of Physics G: Nuclear and Particle Physics, Journal Name: Journal of Physics G: Nuclear and Particle Physics Journal Issue: 1 Vol. 39; ISSN 0954-3899; ISSN JPGPED
Country of Publication:
United States
Language:
English

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