Maximally local two-nucleon interactions at in -less chiral effective field theory
Abstract
We present new maximally local two-nucleon interactions derived in -less chiral effective field theory up to next-to-next-to-next-to-leading order (N3LO), which include all contact and pion-exchange contributions to the nuclear Hamiltonian up to this order. Our interactions are fit to nucleon-nucleon phase shifts using a Bayesian statistical approach, and explore a wide cutoff range from 0.6–0.9 fm (≈660–440 MeV). These interactions can be straightforwardly employed in quantum Monte Carlo methods, such as the auxiliary field diffusion Monte Carlo method. Together with local three-nucleon forces, calculations with these new interactions will provide improved benchmarks for the structure of atomic nuclei and serve as crucial input to analyses of astrophysical phenomena of neutron stars, such as binary neutron-star mergers.
- Authors:
- Publication Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP); USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR). Scientific Discovery through Advanced Computing (SciDAC)
- OSTI Identifier:
- 2331309
- Alternate Identifier(s):
- OSTI ID: 2335751
- Report Number(s):
- LA-UR-23-25233
Journal ID: ISSN 2469-9985; PRVCAN; 034005
- Grant/Contract Number:
- 20220541ECR; AC52-06NA25396; 89233218CNA000001
- Resource Type:
- Published Article
- Journal Name:
- Physical Review. C
- Additional Journal Information:
- Journal Name: Physical Review. C Journal Volume: 109 Journal Issue: 3; Journal ID: ISSN 2469-9985
- Publisher:
- American Physical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; effective field theory; nucleon-nucleon interactions
Citation Formats
Somasundaram, R., Lynn, J. E., Huth, L., Schwenk, A., and Tews, I. Maximally local two-nucleon interactions at N 3 LO in Δ -less chiral effective field theory. United States: N. p., 2024.
Web. doi:10.1103/PhysRevC.109.034005.
Somasundaram, R., Lynn, J. E., Huth, L., Schwenk, A., & Tews, I. Maximally local two-nucleon interactions at N 3 LO in Δ -less chiral effective field theory. United States. https://doi.org/10.1103/PhysRevC.109.034005
Somasundaram, R., Lynn, J. E., Huth, L., Schwenk, A., and Tews, I. Fri .
"Maximally local two-nucleon interactions at N 3 LO in Δ -less chiral effective field theory". United States. https://doi.org/10.1103/PhysRevC.109.034005.
@article{osti_2331309,
title = {Maximally local two-nucleon interactions at N 3 LO in Δ -less chiral effective field theory},
author = {Somasundaram, R. and Lynn, J. E. and Huth, L. and Schwenk, A. and Tews, I.},
abstractNote = {We present new maximally local two-nucleon interactions derived in -less chiral effective field theory up to next-to-next-to-next-to-leading order (N3LO), which include all contact and pion-exchange contributions to the nuclear Hamiltonian up to this order. Our interactions are fit to nucleon-nucleon phase shifts using a Bayesian statistical approach, and explore a wide cutoff range from 0.6–0.9 fm (≈660–440 MeV). These interactions can be straightforwardly employed in quantum Monte Carlo methods, such as the auxiliary field diffusion Monte Carlo method. Together with local three-nucleon forces, calculations with these new interactions will provide improved benchmarks for the structure of atomic nuclei and serve as crucial input to analyses of astrophysical phenomena of neutron stars, such as binary neutron-star mergers.},
doi = {10.1103/PhysRevC.109.034005},
journal = {Physical Review. C},
number = 3,
volume = 109,
place = {United States},
year = {Fri Mar 29 00:00:00 EDT 2024},
month = {Fri Mar 29 00:00:00 EDT 2024}
}
https://doi.org/10.1103/PhysRevC.109.034005
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