dorsal/arxiv
View SchemaReconstructing supernova-neutrino spectra using low-energy beta-beams
| Authors | N. Jachowicz, G. C. McLaughlin |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0604046 |
| URL | https://arxiv.org/abs/nucl-th/0604046 |
| DOI | 10.1103/PhysRevLett.96.172301 |
| Journal | Phys.Rev.Lett. 96 (2006) 172301 |
Abstract
Only weakly interacting, neutrinos are the principal messengers reaching us from the center of a supernova. Terrestrial neutrino telescopes, such as SNO and SuperKamiokande, can provide precious information about the processes in the core of a collapsing and exploding star. But the information about the supernova that a neutrino detector can supply, is restricted by the fact that little experimental data on the neutrino-nucleus cross sections exists and by the uncertainties in theoretical calculations. In this letter, we propose a novel procedure that determines the response of a target nucleus in a supernova-neutrino detector directly, by using low-energy beta-beams. We show that fitting 'synthetic' spectra, constructed by taking linear combinations of beta-beam spectra, to the original supernova-neutrino spectra reproduces the folded differential cross sections very accurately. Comparing the response in a terrestrial detector to these synthetic responses provides a direct way to determine the main parameters of the supernova-neutrino energy-distribution.
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"abstract": "Only weakly interacting, neutrinos are the principal messengers reaching us\nfrom the center of a supernova. Terrestrial neutrino telescopes, such as SNO\nand SuperKamiokande, can provide precious information about the processes in\nthe core of a collapsing and exploding star. But the information about the\nsupernova that a neutrino detector can supply, is restricted by the fact that\nlittle experimental data on the neutrino-nucleus cross sections exists and by\nthe uncertainties in theoretical calculations. In this letter, we propose a\nnovel procedure that determines the response of a target nucleus in a\nsupernova-neutrino detector directly, by using low-energy beta-beams. We show\nthat fitting \u0027synthetic\u0027 spectra, constructed by taking linear combinations of\nbeta-beam spectra, to the original supernova-neutrino spectra reproduces the\nfolded differential cross sections very accurately. Comparing the response in a\nterrestrial detector to these synthetic responses provides a direct way to\ndetermine the main parameters of the supernova-neutrino energy-distribution.",
"arxiv_id": "nucl-th/0604046",
"authors": [
"N. Jachowicz",
"G. C. McLaughlin"
],
"categories": [
"nucl-th",
"astro-ph",
"hep-ph"
],
"doi": "10.1103/PhysRevLett.96.172301",
"journal_ref": "Phys.Rev.Lett. 96 (2006) 172301",
"title": "Reconstructing supernova-neutrino spectra using low-energy beta-beams",
"url": "https://arxiv.org/abs/nucl-th/0604046"
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