dorsal/arxiv
View SchemaQuantum Monte Carlo Studies of Relativistic Effects in Light Nuclei
| Authors | J. L. Forest, V. R. Pandharipande, A. Arriaga |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9805033 |
| URL | https://arxiv.org/abs/nucl-th/9805033 |
| DOI | 10.1103/PhysRevC.60.014002 |
| Journal | Phys.Rev.C60:014002,1999 |
Abstract
Relativistic Hamiltonians are defined as the sum of relativistic one-body kinetic energy, two- and three-body potentials and their boost corrections. In this work we use the variational Monte Carlo method to study two kinds of relativistic effects in the binding energy of 3H and 4He. The first is due to the nonlocalities in the relativistic kinetic energy and relativistic one-pion exchange potential (OPEP), and the second is from boost interaction. The OPEP contribution is reduced by about 15% by the relativistic nonlocality, which may also have significant effects on pion exchange currents. However, almost all of this reduction is canceled by changes in the kinetic energy and other interaction terms, and the total effect of the nonlocalities on the binding energy is very small. The boost interactions, on the other hand, give repulsive contributions of 0.4 (1.9) MeV in 3H (4He) and account for 37% of the phenomenological part of the three-nucleon interaction needed in the nonrelativistic Hamiltonians.
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"abstract": "Relativistic Hamiltonians are defined as the sum of relativistic one-body\nkinetic energy, two- and three-body potentials and their boost corrections. In\nthis work we use the variational Monte Carlo method to study two kinds of\nrelativistic effects in the binding energy of 3H and 4He. The first is due to\nthe nonlocalities in the relativistic kinetic energy and relativistic one-pion\nexchange potential (OPEP), and the second is from boost interaction. The OPEP\ncontribution is reduced by about 15% by the relativistic nonlocality, which may\nalso have significant effects on pion exchange currents. However, almost all of\nthis reduction is canceled by changes in the kinetic energy and other\ninteraction terms, and the total effect of the nonlocalities on the binding\nenergy is very small. The boost interactions, on the other hand, give repulsive\ncontributions of 0.4 (1.9) MeV in 3H (4He) and account for 37% of the\nphenomenological part of the three-nucleon interaction needed in the\nnonrelativistic Hamiltonians.",
"arxiv_id": "nucl-th/9805033",
"authors": [
"J. L. Forest",
"V. R. Pandharipande",
"A. Arriaga"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.60.014002",
"journal_ref": "Phys.Rev.C60:014002,1999",
"title": "Quantum Monte Carlo Studies of Relativistic Effects in Light Nuclei",
"url": "https://arxiv.org/abs/nucl-th/9805033"
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