dorsal/arxiv
View SchemaScalar-isoscalar mesons in pion production at threshold
| Authors | Claudio M. Maekawa, Carlos A. da Rocha |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9905052 |
| URL | https://arxiv.org/abs/nucl-th/9905052 |
Abstract
We present the contributions of the non-linear chiral scalar field S to cross sections of $pp\to d\pi ^{+}, pp\to pn\pi ^{+}$ and $pp\to pp\pi ^0$ reactions at threshold. We compare our results with the meson $\sigma$ contribution from the $\sigma$-linear model. We show that the chiral scalar field S is almost 5 times bigger than the other contributions, which indicates that the two-pion exchange dynamics embebbed in the S field is the most important term for the pion production at threshold.
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"abstract": "We present the contributions of the non-linear chiral scalar field S to cross\nsections of $pp\\to d\\pi ^{+}, pp\\to pn\\pi ^{+}$ and $pp\\to pp\\pi ^0$ reactions\nat threshold. We compare our results with the meson $\\sigma$ contribution from\nthe $\\sigma$-linear model. We show that the chiral scalar field S is almost 5\ntimes bigger than the other contributions, which indicates that the two-pion\nexchange dynamics embebbed in the S field is the most important term for the\npion production at threshold.",
"arxiv_id": "nucl-th/9905052",
"authors": [
"Claudio M. Maekawa",
"Carlos A. da Rocha"
],
"categories": [
"nucl-th",
"hep-ph"
],
"title": "Scalar-isoscalar mesons in pion production at threshold",
"url": "https://arxiv.org/abs/nucl-th/9905052"
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