A 20 GeVs transparent neutrino astronomy from the North Pole?
Muon neutrino astronomy is drown within a polluted atmospheric neutrino noise: indeed recent ICECUBE neutrino records at (TeVs), couldn't find any muon neutrino point source [1] being blurred by such a noisy sky. However at 24 GeV energy atmospheric muon neutrinos, while rising vertically along...
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ftunivromairis:oai:iris.uniroma1.it:11573/380622 2024-04-14T08:19:46+00:00 A 20 GeVs transparent neutrino astronomy from the North Pole? FARGION, Daniele D. Darmiento Fargion, Daniele D., Darmiento 2011 STAMPA http://hdl.handle.net/11573/380622 https://doi.org/10.1016/j.nuclphysbps.2011.03.021 http://arxiv.org/abs/1101.1991v1 eng eng ELSEVIER SCIENCE BV info:eu-repo/semantics/altIdentifier/wos/WOS:000293253600021 Cosmic Ray International Seminars (CRIS 2010) volume:212-213 firstpage:146 lastpage:153 numberofpages:8 journal:NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS http://hdl.handle.net/11573/380622 doi:10.1016/j.nuclphysbps.2011.03.021 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-79957578712 http://arxiv.org/abs/1101.1991v1 info:eu-repo/semantics/article 2011 ftunivromairis https://doi.org/10.1016/j.nuclphysbps.2011.03.021 2024-03-21T19:30:47Z Muon neutrino astronomy is drown within a polluted atmospheric neutrino noise: indeed recent ICECUBE neutrino records at (TeVs), couldn't find any muon neutrino point source [1] being blurred by such a noisy sky. However at 24 GeV energy atmospheric muon neutrinos, while rising vertically along the terrestrial diameter, should disappear (or be severely depleted) while converting into tau flavor: any rarest vertical E-mu similar or equal to 12 GeV muon track at South Pole Deep Core volume, pointing back to North Pole, might be tracing mostly a noise-free astrophysical signal. The corresponding Deep Core 6 - 7 - 8 - 9 channels trigger maybe point in those directions and inside that energy range without much background. Analogous nu(mu) suppression do not occur so efficiently elsewhere (as SuperKamiokande) because of a much smaller volume, an un-ability to test the muon birth place, its length, its expected energy. Also the smearing of the terrestrial rotation makes Deep Core ideal: along the South-North Pole the solid angle is almost steady, the flavor nu(mu) <-> nu(tau) conversion persist while the Earth is spinning around the stable poles-axis. Therefore Deep Core detector at South Pole, may scan at E-nu mu similar or equal to 18-27 GeV energy windows, into a narrow vertical cone Delta theta similar or equal to 30 degrees for a novel nu(mu), (nu) over bar (mu) astronomy almost noise-free, pointing back toward the North Pole. Unfortunately muon (at E, 12 GeV) trace their arrival direction mostly spread around an unique string in a zenith-cone solid angle. To achieve also an azimuth angular resolution a two string detection at once is needed. Therefore the doubling of the Deep Core string number, (two new arrays of six string each, achieving an average detection distance of 36.5 m), is desirable, leading to a larger Deep Core detection mass (more than double) and a sharper zenith and azimuth angular resolution by two-string vertical axis detection. Such an improvement may show a noise free (at least factor ... Article in Journal/Newspaper South pole Sapienza Università di Roma: CINECA IRIS North Pole South Pole Nuclear Physics B - Proceedings Supplements 212-213 146 153 |
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Open Polar |
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Sapienza Università di Roma: CINECA IRIS |
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ftunivromairis |
language |
English |
description |
Muon neutrino astronomy is drown within a polluted atmospheric neutrino noise: indeed recent ICECUBE neutrino records at (TeVs), couldn't find any muon neutrino point source [1] being blurred by such a noisy sky. However at 24 GeV energy atmospheric muon neutrinos, while rising vertically along the terrestrial diameter, should disappear (or be severely depleted) while converting into tau flavor: any rarest vertical E-mu similar or equal to 12 GeV muon track at South Pole Deep Core volume, pointing back to North Pole, might be tracing mostly a noise-free astrophysical signal. The corresponding Deep Core 6 - 7 - 8 - 9 channels trigger maybe point in those directions and inside that energy range without much background. Analogous nu(mu) suppression do not occur so efficiently elsewhere (as SuperKamiokande) because of a much smaller volume, an un-ability to test the muon birth place, its length, its expected energy. Also the smearing of the terrestrial rotation makes Deep Core ideal: along the South-North Pole the solid angle is almost steady, the flavor nu(mu) <-> nu(tau) conversion persist while the Earth is spinning around the stable poles-axis. Therefore Deep Core detector at South Pole, may scan at E-nu mu similar or equal to 18-27 GeV energy windows, into a narrow vertical cone Delta theta similar or equal to 30 degrees for a novel nu(mu), (nu) over bar (mu) astronomy almost noise-free, pointing back toward the North Pole. Unfortunately muon (at E, 12 GeV) trace their arrival direction mostly spread around an unique string in a zenith-cone solid angle. To achieve also an azimuth angular resolution a two string detection at once is needed. Therefore the doubling of the Deep Core string number, (two new arrays of six string each, achieving an average detection distance of 36.5 m), is desirable, leading to a larger Deep Core detection mass (more than double) and a sharper zenith and azimuth angular resolution by two-string vertical axis detection. Such an improvement may show a noise free (at least factor ... |
author2 |
Fargion, Daniele D., Darmiento |
format |
Article in Journal/Newspaper |
author |
FARGION, Daniele D. Darmiento |
spellingShingle |
FARGION, Daniele D. Darmiento A 20 GeVs transparent neutrino astronomy from the North Pole? |
author_facet |
FARGION, Daniele D. Darmiento |
author_sort |
FARGION, Daniele |
title |
A 20 GeVs transparent neutrino astronomy from the North Pole? |
title_short |
A 20 GeVs transparent neutrino astronomy from the North Pole? |
title_full |
A 20 GeVs transparent neutrino astronomy from the North Pole? |
title_fullStr |
A 20 GeVs transparent neutrino astronomy from the North Pole? |
title_full_unstemmed |
A 20 GeVs transparent neutrino astronomy from the North Pole? |
title_sort |
20 gevs transparent neutrino astronomy from the north pole? |
publisher |
ELSEVIER SCIENCE BV |
publishDate |
2011 |
url |
http://hdl.handle.net/11573/380622 https://doi.org/10.1016/j.nuclphysbps.2011.03.021 http://arxiv.org/abs/1101.1991v1 |
geographic |
North Pole South Pole |
geographic_facet |
North Pole South Pole |
genre |
South pole |
genre_facet |
South pole |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000293253600021 Cosmic Ray International Seminars (CRIS 2010) volume:212-213 firstpage:146 lastpage:153 numberofpages:8 journal:NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS http://hdl.handle.net/11573/380622 doi:10.1016/j.nuclphysbps.2011.03.021 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-79957578712 http://arxiv.org/abs/1101.1991v1 |
op_doi |
https://doi.org/10.1016/j.nuclphysbps.2011.03.021 |
container_title |
Nuclear Physics B - Proceedings Supplements |
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212-213 |
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146 |
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153 |
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