dorsal/arxiv
View Schema\bar{p}p low energy parameters from annihilation cross section data
| Authors | J. Carbonell, K. V. Protasov, A. Zenoni |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9806032 |
| URL | https://arxiv.org/abs/nucl-th/9806032 |
| DOI | 10.1016/S0370-2693(97)00190-1 |
| Journal | Phys.Lett. B397 (1997) 345-349 |
Abstract
The recent experimental data obtained by the OBELIX group on total $\bar{p}p$ annihilation cross section are analysed; the low energy spin averaged parameters of the $\bar{p}p$ scattering amplitude (the imaginary parts of the S-wave scattering length and P-wave scattering volume) are extracted from the data. Their values are found to be equal to $Im a_{sc} = - 0.69 \pm 0.01 (stat) \pm 0.03 (sys) fm, Im A_{sc} = - 0.76 \pm 0.05 (stat) \pm 0.04 (sys) fm^3$. The results are in very good agreement with existing atomic data.
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"abstract": "The recent experimental data obtained by the OBELIX group on total $\\bar{p}p$\nannihilation cross section are analysed; the low energy spin averaged\nparameters of the $\\bar{p}p$ scattering amplitude (the imaginary parts of the\nS-wave scattering length and P-wave scattering volume) are extracted from the\ndata. Their values are found to be equal to $Im a_{sc} = - 0.69 \\pm 0.01 (stat)\n\\pm 0.03 (sys) fm, Im A_{sc} = - 0.76 \\pm 0.05 (stat) \\pm 0.04 (sys) fm^3$. The\nresults are in very good agreement with existing atomic data.",
"arxiv_id": "nucl-th/9806032",
"authors": [
"J. Carbonell",
"K. V. Protasov",
"A. Zenoni"
],
"categories": [
"nucl-th"
],
"doi": "10.1016/S0370-2693(97)00190-1",
"journal_ref": "Phys.Lett. B397 (1997) 345-349",
"title": "\\bar{p}p low energy parameters from annihilation cross section data",
"url": "https://arxiv.org/abs/nucl-th/9806032"
},
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