dorsal/arxiv
View SchemaNarrow Resonances in Effective Field Theory
| Authors | P. F. Bedaque, H. -W. Hammer, U. van Kolck |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0304007 |
| URL | https://arxiv.org/abs/nucl-th/0304007 |
| DOI | 10.1016/j.physletb.2003.07.049 |
| Journal | Phys.Lett. B569 (2003) 159-167 |
Abstract
We discuss the power counting for effective field theories with narrow resonances near a two-body threshold. Close to threshold, the effective field theory is perturbative and only one combination of coupling constants is fine-tuned. In the vicinity of the resonance, a second, ``kinematic'' fine-tuning requires a nonperturbative resummation. We illustrate our results in the case of nucleon-alpha scattering.
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"abstract": "We discuss the power counting for effective field theories with narrow\nresonances near a two-body threshold. Close to threshold, the effective field\ntheory is perturbative and only one combination of coupling constants is\nfine-tuned. In the vicinity of the resonance, a second, ``kinematic\u0027\u0027\nfine-tuning requires a nonperturbative resummation. We illustrate our results\nin the case of nucleon-alpha scattering.",
"arxiv_id": "nucl-th/0304007",
"authors": [
"P. F. Bedaque",
"H. -W. Hammer",
"U. van Kolck"
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"doi": "10.1016/j.physletb.2003.07.049",
"journal_ref": "Phys.Lett. B569 (2003) 159-167",
"title": "Narrow Resonances in Effective Field Theory",
"url": "https://arxiv.org/abs/nucl-th/0304007"
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