dorsal/arxiv
View SchemaSensitivity of tensor analyzing power in the process $d+p\to d+X$ to the longitudinal isoscalar form factor of the Roper resonance electroexcitation
| Authors | E. Tomasi-Gustafsson, M. P. Rekalo, R. Bijker, A. Leviatan, F. Iachello |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9911033 |
| URL | https://arxiv.org/abs/nucl-th/9911033 |
| DOI | 10.1103/PhysRevC.59.1526 |
| Journal | Phys.Rev. C59 (1999) 1526-1533 |
Abstract
The tensor analyzing power of the process $d + p \to d + X$, for forward deuteron scattering in the momentum interval 3.7 to 9 GeV/c, is studied in the framework of $\omega$ exchange in an algebraic collective model for the electroexcitation of nucleon resonances. We point out a special sensitivity of the tensor analyzing power to the isoscalar longitudinal form factor of the Roper resonance excitation. The main argument is that the $S_{11}(1535)$, $D_{13}(1520)$ and $S_{11}(1650)$ resonances have only isovector longitudinal form factors. It is the longitudinal form factor of the Roper excitation, which plays an important role in the $t-$dependence of the tensor analyzing power. We discuss possible evidence of swelling of hadrons with increasing excitation energy.
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"abstract": "The tensor analyzing power of the process $d + p \\to d + X$, for forward\ndeuteron scattering in the momentum interval 3.7 to 9 GeV/c, is studied in the\nframework of $\\omega$ exchange in an algebraic collective model for the\nelectroexcitation of nucleon resonances. We point out a special sensitivity of\nthe tensor analyzing power to the isoscalar longitudinal form factor of the\nRoper resonance excitation. The main argument is that the $S_{11}(1535)$,\n$D_{13}(1520)$ and $S_{11}(1650)$ resonances have only isovector longitudinal\nform factors. It is the longitudinal form factor of the Roper excitation, which\nplays an important role in the $t-$dependence of the tensor analyzing power. We\ndiscuss possible evidence of swelling of hadrons with increasing excitation\nenergy.",
"arxiv_id": "nucl-th/9911033",
"authors": [
"E. Tomasi-Gustafsson",
"M. P. Rekalo",
"R. Bijker",
"A. Leviatan",
"F. Iachello"
],
"categories": [
"nucl-th",
"hep-ph"
],
"doi": "10.1103/PhysRevC.59.1526",
"journal_ref": "Phys.Rev. C59 (1999) 1526-1533",
"title": "Sensitivity of tensor analyzing power in the process $d+p\\to d+X$ to the longitudinal isoscalar form factor of the Roper resonance electroexcitation",
"url": "https://arxiv.org/abs/nucl-th/9911033"
},
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