dorsal/arxiv
View SchemaTime Delay and Time Advance in Resonance Theory
| Authors | Enrico De Micheli, Giovanni Alberto Viano |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0608027 |
| URL | https://arxiv.org/abs/nucl-th/0608027 |
| DOI | 10.1016/j.nuclphysa.2004.02.012 |
| Journal | Nucl.Phys. A735 (2004) 515-539 |
Abstract
We propose a theory of the resonance-antiresonance scattering process which differs considerably from the classical one (the Breit-Wigner theory), which is commonly used in the phenomenological analysis. Here both resonances and antiresonances are described in terms of poles of the scattering amplitude: the resonances by poles in the first quadrant while the antiresonances by poles in the fourth quadrant of the complex angular momentum plane. The latter poles are produced by non-local potentials, which derive from the Pauli exchange forces acting among the nucleons or the quarks composing the colliding particles.
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"abstract": "We propose a theory of the resonance-antiresonance scattering process which\ndiffers considerably from the classical one (the Breit-Wigner theory), which is\ncommonly used in the phenomenological analysis. Here both resonances and\nantiresonances are described in terms of poles of the scattering amplitude: the\nresonances by poles in the first quadrant while the antiresonances by poles in\nthe fourth quadrant of the complex angular momentum plane. The latter poles are\nproduced by non-local potentials, which derive from the Pauli exchange forces\nacting among the nucleons or the quarks composing the colliding particles.",
"arxiv_id": "nucl-th/0608027",
"authors": [
"Enrico De Micheli",
"Giovanni Alberto Viano"
],
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"doi": "10.1016/j.nuclphysa.2004.02.012",
"journal_ref": "Nucl.Phys. A735 (2004) 515-539",
"title": "Time Delay and Time Advance in Resonance Theory",
"url": "https://arxiv.org/abs/nucl-th/0608027"
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