dorsal/arxiv
View SchemaRadiative Neutron-Proton Capture in Effective Chiral Lagrangians
| Authors | Tae-Sun Park, Dong-Pil Min, Mannque Rho |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9412025 |
| URL | https://arxiv.org/abs/nucl-th/9412025 |
| DOI | 10.1103/PhysRevLett.74.4153 |
| Journal | Phys. Rev. Lett. 74, 4153 (1995) |
Abstract
We calculate the cross-section for the thermal $n+p\rightarrow d+\gamma$ process in chiral perturbation theory to next-to-next-to-leading order using heavy-fermion formalism. The exchange current correction is found to be $(4.5\pm 0.3)~\%$ in amplitude and the chiral perturbation at one-loop order gives the cross section $\sigma_{th}^{np}=(334\pm 2)\ {\mbox mb}$ which is in agreement with the experimental value $(334.2\pm 0.5)\ {\mbox mb}$. Together with the axial charge transitions, this provides a strong support for the power of chiral Lagrangians for nuclear physics.
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"abstract": "We calculate the cross-section for the thermal $n+p\\rightarrow d+\\gamma$\nprocess in chiral perturbation theory to next-to-next-to-leading order using\nheavy-fermion formalism. The exchange current correction is found to be\n$(4.5\\pm 0.3)~\\%$ in amplitude and the chiral perturbation at one-loop order\ngives the cross section $\\sigma_{th}^{np}=(334\\pm 2)\\ {\\mbox mb}$ which is in\nagreement with the experimental value $(334.2\\pm 0.5)\\ {\\mbox mb}$. Together\nwith the axial charge transitions, this provides a strong support for the power\nof chiral Lagrangians for nuclear physics.",
"arxiv_id": "nucl-th/9412025",
"authors": [
"Tae-Sun Park",
"Dong-Pil Min",
"Mannque Rho"
],
"categories": [
"nucl-th",
"hep-ph"
],
"doi": "10.1103/PhysRevLett.74.4153",
"journal_ref": "Phys. Rev. Lett. 74, 4153 (1995)",
"title": "Radiative Neutron-Proton Capture in Effective Chiral Lagrangians",
"url": "https://arxiv.org/abs/nucl-th/9412025"
},
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