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Magnetic moments of A = 3 nuclei obtained from chiral effective field theory operators
Abstract
Chiral effective field theory (χEFT) provides a framework for obtaining internucleon interactions in a systematically improvable fashion from first principles, while also providing for the derivation of consistent electroweak current operators. In this study, we apply consistently derived interactions and currents towards calculating the magnetic dipole moments of the A = 3 systems 3H and 3He. We focus here on LENPIC interactions obtained using semilocal coordinate-space (SCS) regularization. Starting from the momentum-space representation of the LENPIC χEFT vector current, we derive the SCS-regularized magnetic dipole operator up through next-to-next-to-leading order (N2LO). We then carry out no-core shell-model calculations for 3H and 3He systems using the SCS LENPIC interaction at N2LO in χEFT and evaluate the magnetic dipole moments obtained using the consistently derived one-nucleon and two-nucleon electromagnetic currents. As anticipated by prior results with χEFT currents, the current corrections through N2LO provide improved, but not yet complete, agreement with experiment for the 3H and 3He magnetic dipole moments.
- Authors:
-
- Iowa State University, Ames, IA (United States); University of Arizona, Tucson, AZ (United States)
- Iowa State University, Ames, IA (United States)
- University of Notre Dame, IN (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)
- University of Notre Dame, IN (United States)
- Publication Date:
- Research Org.:
- Iowa State Univ., Ames, IA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF)
- OSTI Identifier:
- 2278930
- Grant/Contract Number:
- FG02-87ER40371; SC0018223; SC0023495; SC0023692; AC02-05CH11231
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review. C
- Additional Journal Information:
- Journal Volume: 108; Journal Issue: 2; Journal ID: ISSN 2469-9985
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Chiral Effective Field Theory; Nuclear interactions; Electromagnetic interactions; Few-body systems; Nuclear many-body theory; Nucleon-nucleon interactions; Spectroscopic factors & electromagnetic moments; A ≤ 5
Citation Formats
Pal, Soham, Sarker, Shiplu, Fasano, Patrick J., Maris, Pieter, Vary, James P., Caprio, Mark A., and Basili, Robert A. M. Magnetic moments of A=3 nuclei obtained from chiral effective field theory operators. United States: N. p., 2023.
Web. doi:10.1103/physrevc.108.024001.
Pal, Soham, Sarker, Shiplu, Fasano, Patrick J., Maris, Pieter, Vary, James P., Caprio, Mark A., & Basili, Robert A. M. Magnetic moments of A=3 nuclei obtained from chiral effective field theory operators. United States. https://doi.org/10.1103/physrevc.108.024001
Pal, Soham, Sarker, Shiplu, Fasano, Patrick J., Maris, Pieter, Vary, James P., Caprio, Mark A., and Basili, Robert A. M. Wed .
"Magnetic moments of A=3 nuclei obtained from chiral effective field theory operators". United States. https://doi.org/10.1103/physrevc.108.024001.
@article{osti_2278930,
title = {Magnetic moments of A=3 nuclei obtained from chiral effective field theory operators},
author = {Pal, Soham and Sarker, Shiplu and Fasano, Patrick J. and Maris, Pieter and Vary, James P. and Caprio, Mark A. and Basili, Robert A. M.},
abstractNote = {Chiral effective field theory (χEFT) provides a framework for obtaining internucleon interactions in a systematically improvable fashion from first principles, while also providing for the derivation of consistent electroweak current operators. In this study, we apply consistently derived interactions and currents towards calculating the magnetic dipole moments of the A = 3 systems 3H and 3He. We focus here on LENPIC interactions obtained using semilocal coordinate-space (SCS) regularization. Starting from the momentum-space representation of the LENPIC χEFT vector current, we derive the SCS-regularized magnetic dipole operator up through next-to-next-to-leading order (N2LO). We then carry out no-core shell-model calculations for 3H and 3He systems using the SCS LENPIC interaction at N2LO in χEFT and evaluate the magnetic dipole moments obtained using the consistently derived one-nucleon and two-nucleon electromagnetic currents. As anticipated by prior results with χEFT currents, the current corrections through N2LO provide improved, but not yet complete, agreement with experiment for the 3H and 3He magnetic dipole moments.},
doi = {10.1103/physrevc.108.024001},
journal = {Physical Review. C},
number = 2,
volume = 108,
place = {United States},
year = {Wed Aug 02 00:00:00 EDT 2023},
month = {Wed Aug 02 00:00:00 EDT 2023}
}
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