dorsal/arxiv
View SchemaLeft-Right Asymmetry in $\bar{p}p \rightarrow \pi^- \pi^+$
| Authors | George Bathas, W. M. Kloet |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9303012 |
| URL | https://arxiv.org/abs/nucl-th/9303012 |
| DOI | 10.1103/PhysRevC.47.2207 |
| Journal | Phys.Rev.C47:2207-2212,1993 |
Abstract
Results for d$\sigma$/d$\Omega$ and $A_N$ in the reaction $\bar{p}p \rightarrow \pi^- \pi^+$ are predicted by a simple quark model. They are compared to recent experimental data from LEAR, as well as to previous predictions from nucleon-exchange models. At low energy the quark model does better than the nucleon-exchange models, but the overall comparison to experiment remains poor. In particular, the double-dip structure of the experimental $A_N$ data is only partly represented. This shortcoming of the simple quark model is traced back to a too small J=2 amplitude. This has interesting implications for the range of this specific annihilation process.
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"abstract": "Results for d$\\sigma$/d$\\Omega$ and $A_N$ in the reaction $\\bar{p}p\n\\rightarrow \\pi^- \\pi^+$ are predicted by a simple quark model. They are\ncompared to recent experimental data from LEAR, as well as to previous\npredictions from nucleon-exchange models. At low energy the quark model does\nbetter than the nucleon-exchange models, but the overall comparison to\nexperiment remains poor. In particular, the double-dip structure of the\nexperimental $A_N$ data is only partly represented. This shortcoming of the\nsimple quark model is traced back to a too small J=2 amplitude. This has\ninteresting implications for the range of this specific annihilation process.",
"arxiv_id": "nucl-th/9303012",
"authors": [
"George Bathas",
"W. M. Kloet"
],
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"nucl-th"
],
"doi": "10.1103/PhysRevC.47.2207",
"journal_ref": "Phys.Rev.C47:2207-2212,1993",
"title": "Left-Right Asymmetry in $\\bar{p}p \\rightarrow \\pi^- \\pi^+$",
"url": "https://arxiv.org/abs/nucl-th/9303012"
},
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