dorsal/arxiv
View SchemaReinvestigation of $pp\to pp\pi^0$ and $pp\to pp\eta$ at threshold
| Authors | Frieder Kleefeld, Manfred Dillig |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9806057 |
| URL | https://arxiv.org/abs/nucl-th/9806057 |
| Journal | Acta Phys.Polon. B29 (1998) 3059-3064 |
Abstract
$pp\to pp\pi^0$ and $pp\to pp\eta$ were considered close to threshold. The pion production was found not only to be dominated by impulse approximation (IA) and rescattering contributions, but also strongly by box-diagrams, resonances and heavy-meson exchanges. New relevant contributions for the IA were found. The role of the offshell behaviour of nucleon-resonance couplings ($P_{11}(1440), S_{11}(1535)$) and of interference effects for the eta production was investigated. The results opened a large door for microsopic understanding of short range physics. A covariant model for $pp\to pp\eta$ being under construction is going to be finished.
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"abstract": "$pp\\to pp\\pi^0$ and $pp\\to pp\\eta$ were considered close to threshold. The\npion production was found not only to be dominated by impulse approximation\n(IA) and rescattering contributions, but also strongly by box-diagrams,\nresonances and heavy-meson exchanges. New relevant contributions for the IA\nwere found. The role of the offshell behaviour of nucleon-resonance couplings\n($P_{11}(1440), S_{11}(1535)$) and of interference effects for the eta\nproduction was investigated. The results opened a large door for microsopic\nunderstanding of short range physics. A covariant model for $pp\\to pp\\eta$\nbeing under construction is going to be finished.",
"arxiv_id": "nucl-th/9806057",
"authors": [
"Frieder Kleefeld",
"Manfred Dillig"
],
"categories": [
"nucl-th"
],
"journal_ref": "Acta Phys.Polon. B29 (1998) 3059-3064",
"title": "Reinvestigation of $pp\\to pp\\pi^0$ and $pp\\to pp\\eta$ at threshold",
"url": "https://arxiv.org/abs/nucl-th/9806057"
},
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