dorsal/arxiv
View SchemaFinal-state $NN$-rescattering in spin asymmetries of $d(\gamma,\pi^-)pp$ reaction
| Authors | Eed M. Darwish, Agus Salam |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0505002 |
| URL | https://arxiv.org/abs/nucl-th/0505002 |
| DOI | 10.1016/j.nuclphysa.2005.04.026 |
| Journal | Nucl.Phys. A759 (2005) 170-187 |
Abstract
The role of the final-state $NN$-rescattering ($NN$-FSI) in the polarization observables of the inclusive reaction $d(\gamma,\pi^-)pp$, involving polarization of the photon beam and/or the deuteron target, is investigated. Various single- and double-spin asymmetries are studied with respect to the influence of such interaction effect and numerical predictions are given for forthcoming experiments. It has been found that the effect of $NN$-FSI is quite important for the single-spin asymmetries $\Sigma$, $T_{20}$, $T_{21}$ and $T_{22}$ and the double-spin asymmetry $T^{\ell}_{20}$, whereas it is much less important for the vector target asymmetry $T_{11}$ and other beam-target double-polarization asymmetries. Furthermore, we found that the inclusion of the $NN$-FSI improves the description of the LEGS data for the linear photon asymmetry.
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"abstract": "The role of the final-state $NN$-rescattering ($NN$-FSI) in the polarization\nobservables of the inclusive reaction $d(\\gamma,\\pi^-)pp$, involving\npolarization of the photon beam and/or the deuteron target, is investigated.\nVarious single- and double-spin asymmetries are studied with respect to the\ninfluence of such interaction effect and numerical predictions are given for\nforthcoming experiments. It has been found that the effect of $NN$-FSI is quite\nimportant for the single-spin asymmetries $\\Sigma$, $T_{20}$, $T_{21}$ and\n$T_{22}$ and the double-spin asymmetry $T^{\\ell}_{20}$, whereas it is much less\nimportant for the vector target asymmetry $T_{11}$ and other beam-target\ndouble-polarization asymmetries. Furthermore, we found that the inclusion of\nthe $NN$-FSI improves the description of the LEGS data for the linear photon\nasymmetry.",
"arxiv_id": "nucl-th/0505002",
"authors": [
"Eed M. Darwish",
"Agus Salam"
],
"categories": [
"nucl-th"
],
"doi": "10.1016/j.nuclphysa.2005.04.026",
"journal_ref": "Nucl.Phys. A759 (2005) 170-187",
"title": "Final-state $NN$-rescattering in spin asymmetries of $d(\\gamma,\\pi^-)pp$ reaction",
"url": "https://arxiv.org/abs/nucl-th/0505002"
},
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