dorsal/arxiv
View SchemaA next-to-next-to-leading order pp -> pp\pi^0 transition operator in chiral perturbation theory
| Authors | V. Dmitrašinović, K. Kubodera, F. Myhrer, T. Sato |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9908023 |
| URL | https://arxiv.org/abs/nucl-th/9908023 |
| DOI | 10.1016/S0375-9474(99)00632-6 |
| Journal | Nucl.Phys.A663:465-468,2000 |
Abstract
We discuss the results of a systematic calculation of the next-to-next-to-leading order amplitude for the pp -> pp\pi^0 S-wave production at the threshold in heavy-baryon chiral perturbation theory. We find six new diagrams, two of which can be viewed as vertex corrections, of 15 - 20 %, to the pion-exchange graph, whereas the rest are much larger, one exceeding 900 %. We discuss the reasons for this enhancement, as well as the steps necessary to be taken before the final comparison with experiment.
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"abstract": "We discuss the results of a systematic calculation of the\nnext-to-next-to-leading order amplitude for the pp -\u003e pp\\pi^0 S-wave production\nat the threshold in heavy-baryon chiral perturbation theory. We find six new\ndiagrams, two of which can be viewed as vertex corrections, of 15 - 20 %, to\nthe pion-exchange graph, whereas the rest are much larger, one exceeding 900 %.\nWe discuss the reasons for this enhancement, as well as the steps necessary to\nbe taken before the final comparison with experiment.",
"arxiv_id": "nucl-th/9908023",
"authors": [
"V. Dmitra\u0161inovi\u0107",
"K. Kubodera",
"F. Myhrer",
"T. Sato"
],
"categories": [
"nucl-th"
],
"doi": "10.1016/S0375-9474(99)00632-6",
"journal_ref": "Nucl.Phys.A663:465-468,2000",
"title": "A next-to-next-to-leading order pp -\u003e pp\\pi^0 transition operator in chiral perturbation theory",
"url": "https://arxiv.org/abs/nucl-th/9908023"
},
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