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Title: Quantum Monte Carlo calculations of magnetic moments and M1 transitions in A{<=}7 nuclei including meson-exchange currents

Abstract

Green's function Monte Carlo calculations of magnetic moments and M1 transitions including two-body meson-exchange current (MEC) contributions are reported for A{<=}7 nuclei. The realistic Argonne v{sub 18} two-nucleon and Illinois-2 three-nucleon potentials are used to generate the nuclear wave functions. The two-body meson-exchange operators are constructed to satisfy the continuity equation with the Argonne v{sub 18} potential. The MEC contributions increase the A=3,7 isovector magnetic moments by 16% and the A=6,7 M1 transition rates by 17-34%, bringing them into very good agreement with the experimental data.

Authors:
 [1]; ; ;  [2];  [3]
  1. Department of Physics 'Enrico Fermi', University of Pisa, I-56127 Pisa (Italy)
  2. Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
  3. Theory Center, Jefferson Laboratory, Newport News, Virginia 23606 (United States)
Publication Date:
OSTI Identifier:
21199463
Resource Type:
Journal Article
Journal Name:
Physical Review. C, Nuclear Physics
Additional Journal Information:
Journal Volume: 78; Journal Issue: 6; Other Information: DOI: 10.1103/PhysRevC.78.065501; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2813
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; BOSON-EXCHANGE MODELS; CONTINUITY EQUATIONS; CURRENTS; GREEN FUNCTION; ISOVECTORS; M1-TRANSITIONS; MAGNETIC MOMENTS; MONTE CARLO METHOD; NUCLEI; NUCLEONS; TWO-BODY PROBLEM; WAVE FUNCTIONS

Citation Formats

Marcucci, L E, INFN, Sezione di Pisa, I-56127 Pisa, Pervin, Muslema, Pieper, Steven C, Wiringa, R B, Schiavilla, R, and Department of Physics, Old Dominion University, Norfolk, Virginia 23529. Quantum Monte Carlo calculations of magnetic moments and M1 transitions in A{<=}7 nuclei including meson-exchange currents. United States: N. p., 2008. Web. doi:10.1103/PHYSREVC.78.065501.
Marcucci, L E, INFN, Sezione di Pisa, I-56127 Pisa, Pervin, Muslema, Pieper, Steven C, Wiringa, R B, Schiavilla, R, & Department of Physics, Old Dominion University, Norfolk, Virginia 23529. Quantum Monte Carlo calculations of magnetic moments and M1 transitions in A{<=}7 nuclei including meson-exchange currents. United States. https://doi.org/10.1103/PHYSREVC.78.065501
Marcucci, L E, INFN, Sezione di Pisa, I-56127 Pisa, Pervin, Muslema, Pieper, Steven C, Wiringa, R B, Schiavilla, R, and Department of Physics, Old Dominion University, Norfolk, Virginia 23529. 2008. "Quantum Monte Carlo calculations of magnetic moments and M1 transitions in A{<=}7 nuclei including meson-exchange currents". United States. https://doi.org/10.1103/PHYSREVC.78.065501.
@article{osti_21199463,
title = {Quantum Monte Carlo calculations of magnetic moments and M1 transitions in A{<=}7 nuclei including meson-exchange currents},
author = {Marcucci, L E and INFN, Sezione di Pisa, I-56127 Pisa and Pervin, Muslema and Pieper, Steven C and Wiringa, R B and Schiavilla, R and Department of Physics, Old Dominion University, Norfolk, Virginia 23529},
abstractNote = {Green's function Monte Carlo calculations of magnetic moments and M1 transitions including two-body meson-exchange current (MEC) contributions are reported for A{<=}7 nuclei. The realistic Argonne v{sub 18} two-nucleon and Illinois-2 three-nucleon potentials are used to generate the nuclear wave functions. The two-body meson-exchange operators are constructed to satisfy the continuity equation with the Argonne v{sub 18} potential. The MEC contributions increase the A=3,7 isovector magnetic moments by 16% and the A=6,7 M1 transition rates by 17-34%, bringing them into very good agreement with the experimental data.},
doi = {10.1103/PHYSREVC.78.065501},
url = {https://www.osti.gov/biblio/21199463}, journal = {Physical Review. C, Nuclear Physics},
issn = {0556-2813},
number = 6,
volume = 78,
place = {United States},
year = {Mon Dec 15 00:00:00 EST 2008},
month = {Mon Dec 15 00:00:00 EST 2008}
}