dorsal/arxiv
View SchemaProbing Hadronic Structure with The Decay $\Delta\rightarrow Nl^+l^-$
| Authors | Malcolm N. Butler, Martin J. Savage, Roxanne P. Springer |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9303015 |
| URL | https://arxiv.org/abs/nucl-th/9303015 |
| DOI | 10.1103/PhysRevC.48.917 |
| Journal | Phys.Rev.C48:917-919,1993 |
Abstract
We compute the branching ratio for $\Delta\rightarrow Ne^+e^-$ and $\Delta\rightarrow N\mu^+\mu^-$ in chiral perturbation theory and find that both decays should be observable at CEBAF. With sufficiently low thresholds on the $e^+e^-$ invariant mass a branching ratio of $\sim 10^{-5}$ may be observed for $\Delta\rightarrow Ne^+e^-$. For the $\Delta\rightarrow N\mu^+\mu^-$ decay mode we predict a branching ratio of $3\times 10^{-7}$. The dependence of the M1 and E2 amplitudes on the momentum transfer will provide a useful test of chiral perturbation theory which predicts $\sim 20\%$ variation over the allowed kinematic range.
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"abstract": "We compute the branching ratio for $\\Delta\\rightarrow Ne^+e^-$ and\n$\\Delta\\rightarrow N\\mu^+\\mu^-$ in chiral perturbation theory and find that\nboth decays should be observable at CEBAF. With sufficiently low thresholds on\nthe $e^+e^-$ invariant mass a branching ratio of $\\sim 10^{-5}$ may be observed\nfor $\\Delta\\rightarrow Ne^+e^-$. For the $\\Delta\\rightarrow N\\mu^+\\mu^-$ decay\nmode we predict a branching ratio of $3\\times 10^{-7}$. The dependence of the\nM1 and E2 amplitudes on the momentum transfer will provide a useful test of\nchiral perturbation theory which predicts $\\sim 20\\%$ variation over the\nallowed kinematic range.",
"arxiv_id": "nucl-th/9303015",
"authors": [
"Malcolm N. Butler",
"Martin J. Savage",
"Roxanne P. Springer"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.48.917",
"journal_ref": "Phys.Rev.C48:917-919,1993",
"title": "Probing Hadronic Structure with The Decay $\\Delta\\rightarrow Nl^+l^-$",
"url": "https://arxiv.org/abs/nucl-th/9303015"
},
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