dorsal/arxiv
View SchemaWeak capture of protons by protons
| Authors | R. Schiavilla, V. G. J. Stoks, W. Gloeckle, H. Kamada, A. Nogga, J. Carlson, R. Machleidt, V. R. Pandharipande, R. B. Wiringa, A. Kievsky, S. Rosati, M. Viviani |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9808010 |
| URL | https://arxiv.org/abs/nucl-th/9808010 |
| DOI | 10.1103/PhysRevC.58.1263 |
| Journal | Phys.Rev.C58:1263,1998 |
Abstract
The cross section for the proton weak capture reaction $^1H(p,e^+\nu_e)^2H$ is calculated with wave functions obtained from a number of modern, realistic high-precision interactions. To minimize the uncertainty in the axial two-body current operator, its matrix element has been adjusted to reproduce the measured Gamow-Teller matrix element of tritium $\beta$ decay in model calculations using trinucleon wave functions from these interactions. A thorough analysis of the ambiguities that this procedure introduces in evaluating the two-body current contribution to the pp capture is given. Its inherent model dependence is in fact found to be very weak. The overlap integral $\Lambda^2(E=0)$ for the pp capture is predicted to be in the range 7.05--7.06, including the axial two-body current contribution, for all interactions considered.
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"abstract": "The cross section for the proton weak capture reaction $^1H(p,e^+\\nu_e)^2H$\nis calculated with wave functions obtained from a number of modern, realistic\nhigh-precision interactions. To minimize the uncertainty in the axial two-body\ncurrent operator, its matrix element has been adjusted to reproduce the\nmeasured Gamow-Teller matrix element of tritium $\\beta$ decay in model\ncalculations using trinucleon wave functions from these interactions. A\nthorough analysis of the ambiguities that this procedure introduces in\nevaluating the two-body current contribution to the pp capture is given. Its\ninherent model dependence is in fact found to be very weak. The overlap\nintegral $\\Lambda^2(E=0)$ for the pp capture is predicted to be in the range\n7.05--7.06, including the axial two-body current contribution, for all\ninteractions considered.",
"arxiv_id": "nucl-th/9808010",
"authors": [
"R. Schiavilla",
"V. G. J. Stoks",
"W. Gloeckle",
"H. Kamada",
"A. Nogga",
"J. Carlson",
"R. Machleidt",
"V. R. Pandharipande",
"R. B. Wiringa",
"A. Kievsky",
"S. Rosati",
"M. Viviani"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.58.1263",
"journal_ref": "Phys.Rev.C58:1263,1998",
"title": "Weak capture of protons by protons",
"url": "https://arxiv.org/abs/nucl-th/9808010"
},
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