dorsal/arxiv
View SchemaCenter-of-mass effects in electromagnetic two-proton knockout reactions
| Authors | Carlotta Giusti, Franco Davide Pacati, Michael Schwamb, Sigfrido Boffi, ; |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0701054 |
| URL | https://arxiv.org/abs/nucl-th/0701054 |
| DOI | 10.1140/epja/i2007-10001-y |
| Journal | Eur.Phys.J.A31:155-162,2007 |
Abstract
The role of center-of mass (CM) effects in the one-body nuclear current in the description of electromagnetically induced two-nucleon knockout reactions is discussed in connection with the problem of the lack of orthogonality between initial bound states and final scattering states obtained by the use of an energy-dependent optical model potential. Results for the cross sections of the exclusive $^{16}$O(e,e$'$pp)$^{14}$C and $^{16}$O($\gamma$,pp)$^{14}$C knockout reactions in different kinematics are presented and discussed. In super-parallel kinematics CM effects produce a strong enhancement of the $^{16}$O(e,e$'$pp)$^{14}$C$_{\rm g.s.}$ cross section which strongly reduces the destructive interference between the one-body and $\Delta$-current and the sensitivity to the treatment of the $\Delta$-current found in previous work.
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"abstract": "The role of center-of mass (CM) effects in the one-body nuclear current in\nthe description of electromagnetically induced two-nucleon knockout reactions\nis discussed in connection with the problem of the lack of orthogonality\nbetween initial bound states and final scattering states obtained by the use of\nan energy-dependent optical model potential. Results for the cross sections of\nthe exclusive $^{16}$O(e,e$\u0027$pp)$^{14}$C and $^{16}$O($\\gamma$,pp)$^{14}$C\nknockout reactions in different kinematics are presented and discussed. In\nsuper-parallel kinematics CM effects produce a strong enhancement of the\n$^{16}$O(e,e$\u0027$pp)$^{14}$C$_{\\rm g.s.}$ cross section which strongly reduces\nthe destructive interference between the one-body and $\\Delta$-current and the\nsensitivity to the treatment of the $\\Delta$-current found in previous work.",
"arxiv_id": "nucl-th/0701054",
"authors": [
"Carlotta Giusti",
"Franco Davide Pacati",
"Michael Schwamb",
"Sigfrido Boffi",
";"
],
"categories": [
"nucl-th"
],
"doi": "10.1140/epja/i2007-10001-y",
"journal_ref": "Eur.Phys.J.A31:155-162,2007",
"title": "Center-of-mass effects in electromagnetic two-proton knockout reactions",
"url": "https://arxiv.org/abs/nucl-th/0701054"
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