dorsal/arxiv
View SchemaParity conserving gamma asymmetry in n-p radiative capture
| Authors | Attila Csoto, B. F. Gibson, G. L. Payne |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9704063 |
| URL | https://arxiv.org/abs/nucl-th/9704063 |
| DOI | 10.1103/PhysRevC.56.631 |
| Journal | Phys.Rev.C56:631-634,1997 |
Abstract
The importance of n-p radiative capture, utilizing polarized cold neutrons, as a means of measuring the weak pion coupling constant is reviewed. Parity conserving processes of the form k_gamma*[s_n,k_n] can contribute to the s_n*k_gamma photon asymmetry in any such experiment, if the apparatus is not perfectly symmetric. For an incident laboratory neutron energy of 0.003 eV a value of A^{PC}_{gamma}=0.67*10^{-8} is obtained for two different potential models (Argonne AV14 and Nijmegen Reid93). Serving as an extreme test case, the Reid soft core potential yields 0.61*10^{-8}, close to the result of the contemporary forces. Implications for extracting the weak pion coupling constant and for monitoring the beam polarization are discussed.
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"abstract": "The importance of n-p radiative capture, utilizing polarized cold neutrons,\nas a means of measuring the weak pion coupling constant is reviewed. Parity\nconserving processes of the form k_gamma*[s_n,k_n] can contribute to the\ns_n*k_gamma photon asymmetry in any such experiment, if the apparatus is not\nperfectly symmetric. For an incident laboratory neutron energy of 0.003 eV a\nvalue of A^{PC}_{gamma}=0.67*10^{-8} is obtained for two different potential\nmodels (Argonne AV14 and Nijmegen Reid93). Serving as an extreme test case, the\nReid soft core potential yields 0.61*10^{-8}, close to the result of the\ncontemporary forces. Implications for extracting the weak pion coupling\nconstant and for monitoring the beam polarization are discussed.",
"arxiv_id": "nucl-th/9704063",
"authors": [
"Attila Csoto",
"B. F. Gibson",
"G. L. Payne"
],
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"nucl-th"
],
"doi": "10.1103/PhysRevC.56.631",
"journal_ref": "Phys.Rev.C56:631-634,1997",
"title": "Parity conserving gamma asymmetry in n-p radiative capture",
"url": "https://arxiv.org/abs/nucl-th/9704063"
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