dorsal/arxiv
View SchemaRelativistic models for quasi-elastic neutrino scattering
| Authors | M. C. Martinez, P. Lava, N. Jachowicz, J. Ryckebusch, K. Vantournhout, J. M. Udias |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0505008 |
| URL | https://arxiv.org/abs/nucl-th/0505008 |
| DOI | 10.1103/PhysRevC.73.024607 |
| Journal | Phys.Rev. C73 (2006) 024607 |
Abstract
We present quasi-elastic neutrino-nucleus cross sections in the energy range from 150 MeV up to 5 GeV for the target nuclei 12C and 56Fe. A relativistic description of the nuclear dynamics and the neutrino-nucleus coupling is adopted. For the treatment of final-state interactions (FSI) we rely on two frameworks succesfully applied to exclusive electron-nucleus scattering: a relativistic optical potential and a relativistic multiple-scattering Glauber approximation. At lower energies, the optical-potential approach is considered to be the optimum choice, whereas at high energies a Glauber approach is more natural. Comparing the results of both calculations, it is found that the Glauber approach yields valid results down to the remarkably small nucleon kinetic energies of 200 MeV. We argue that the nuclear transparencies extracted from A(e,e'p) measurements can be used to obtain realistic estimates of the effect of FSI mechanisms on quasi-elastic neutrino-nucleus cross sections. We present two independent relativistic plane-wave impulse approximation (RPWIA) calculations of quasi-elastic neutrino-nucleus cross sections. They agree at the percent level, showing the reliability of the numerical techniques adopted and providing benchmark RPWIA results.
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"abstract": "We present quasi-elastic neutrino-nucleus cross sections in the energy range\nfrom 150 MeV up to 5 GeV for the target nuclei 12C and 56Fe. A relativistic\ndescription of the nuclear dynamics and the neutrino-nucleus coupling is\nadopted. For the treatment of final-state interactions (FSI) we rely on two\nframeworks succesfully applied to exclusive electron-nucleus scattering: a\nrelativistic optical potential and a relativistic multiple-scattering Glauber\napproximation. At lower energies, the optical-potential approach is considered\nto be the optimum choice, whereas at high energies a Glauber approach is more\nnatural. Comparing the results of both calculations, it is found that the\nGlauber approach yields valid results down to the remarkably small nucleon\nkinetic energies of 200 MeV. We argue that the nuclear transparencies extracted\nfrom A(e,e\u0027p) measurements can be used to obtain realistic estimates of the\neffect of FSI mechanisms on quasi-elastic neutrino-nucleus cross sections. We\npresent two independent relativistic plane-wave impulse approximation (RPWIA)\ncalculations of quasi-elastic neutrino-nucleus cross sections. They agree at\nthe percent level, showing the reliability of the numerical techniques adopted\nand providing benchmark RPWIA results.",
"arxiv_id": "nucl-th/0505008",
"authors": [
"M. C. Martinez",
"P. Lava",
"N. Jachowicz",
"J. Ryckebusch",
"K. Vantournhout",
"J. M. Udias"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.73.024607",
"journal_ref": "Phys.Rev. C73 (2006) 024607",
"title": "Relativistic models for quasi-elastic neutrino scattering",
"url": "https://arxiv.org/abs/nucl-th/0505008"
},
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