dorsal/arxiv
View SchemaThe $\pi^+$--emission puzzle in $^4_\Lambda$He decay
| Authors | B. F. Gibson, R. G. E. Timmermans |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9711054 |
| URL | https://arxiv.org/abs/nucl-th/9711054 |
| DOI | 10.1016/S0375-9474(97)00642-8 |
| Journal | Nucl.Phys. A628 (1998) 417-426 |
Abstract
We re-examine the puzzling $\pi^+$ emission from the weak decay of $^4_\Lambda$He and propose an explanation in terms of a three-body decay of the virtual $\Sigma^+$. Such a resolution of the $\pi^+$ decay puzzle is consistent with the calculated $\Sigma^+$ probability in light $\Lambda$ hypernuclei as well as the experimentally observed $\pi^+$ energy spectrum and $s$--wave angular distribution.
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"abstract": "We re-examine the puzzling $\\pi^+$ emission from the weak decay of\n$^4_\\Lambda$He and propose an explanation in terms of a three-body decay of the\nvirtual $\\Sigma^+$. Such a resolution of the $\\pi^+$ decay puzzle is consistent\nwith the calculated $\\Sigma^+$ probability in light $\\Lambda$ hypernuclei as\nwell as the experimentally observed $\\pi^+$ energy spectrum and $s$--wave\nangular distribution.",
"arxiv_id": "nucl-th/9711054",
"authors": [
"B. F. Gibson",
"R. G. E. Timmermans"
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"doi": "10.1016/S0375-9474(97)00642-8",
"journal_ref": "Nucl.Phys. A628 (1998) 417-426",
"title": "The $\\pi^+$--emission puzzle in $^4_\\Lambda$He decay",
"url": "https://arxiv.org/abs/nucl-th/9711054"
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