dorsal/arxiv
View SchemaPolarization transfer in $^4$He$(\vec{e},e^\prime\vec{p})$$^3$H: is the ratio $G_{Ep}/G_{Mp}$ modified in medium ?
| Authors | R. Schiavilla, O. Benhar, A. Kievsky, L. E. Marcucci, M. Viviani |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0412020 |
| URL | https://arxiv.org/abs/nucl-th/0412020 |
| DOI | 10.1103/PhysRevLett.94.072303 |
| Journal | Phys.Rev.Lett.94:072303,2005 |
Abstract
Polarization observables in the $^4$He$(\vec{e},e^\prime\vec{p})$$^3$H reaction are calculated using accurate three- and four-nucleon bound-state wave functions, a realistic model for the nuclear electromagnetic current operator, and a treatment of final-state-interactions with an optical potential. In contrast to earlier studies, no significant discrepancies are found between theory and experiment both for the ratio of transverse to longitudinal polarization transfers and for the induced polarization, when free-nucleon electromagnetic form factors are used in the current operator. The present results challenge the current interpretation of the experimental data in terms of medium-modified form factors.
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"abstract": "Polarization observables in the $^4$He$(\\vec{e},e^\\prime\\vec{p})$$^3$H\nreaction are calculated using accurate three- and four-nucleon bound-state wave\nfunctions, a realistic model for the nuclear electromagnetic current operator,\nand a treatment of final-state-interactions with an optical potential. In\ncontrast to earlier studies, no significant discrepancies are found between\ntheory and experiment both for the ratio of transverse to longitudinal\npolarization transfers and for the induced polarization, when free-nucleon\nelectromagnetic form factors are used in the current operator. The present\nresults challenge the current interpretation of the experimental data in terms\nof medium-modified form factors.",
"arxiv_id": "nucl-th/0412020",
"authors": [
"R. Schiavilla",
"O. Benhar",
"A. Kievsky",
"L. E. Marcucci",
"M. Viviani"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevLett.94.072303",
"journal_ref": "Phys.Rev.Lett.94:072303,2005",
"title": "Polarization transfer in $^4$He$(\\vec{e},e^\\prime\\vec{p})$$^3$H: is the ratio $G_{Ep}/G_{Mp}$ modified in medium ?",
"url": "https://arxiv.org/abs/nucl-th/0412020"
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