Updated results from the RICE experiment and future prospects for ultra-high energy neutrino detection at the south pole
The RICE experiment seeks observation of ultra-high energy (UHE; Ev > 1017 eV) neutrinos interacting in Antarctic ice, by measurement of the radio frequency (RF) Cherenkov radiation resulting from the collision of a neutrino with an ice molecule. RICE was initiated in 1999 as a first-generation p...
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ftunivnebraskali:oai:digitalcommons.unl.edu:physicsfacpub-1102 2023-11-12T04:05:16+01:00 Updated results from the RICE experiment and future prospects for ultra-high energy neutrino detection at the south pole Kravchenko, Ilya Hussain, S. Seckel, D. Besson, Dave Z. Fensholt, E. Ralston, John P. Taylor, J. Ratzlaff, Kenneth L. Young, R. 2012-01-01T08:00:00Z application/pdf https://digitalcommons.unl.edu/physicsfacpub/97 https://digitalcommons.unl.edu/context/physicsfacpub/article/1102/viewcontent/Kravchenko_PhysRevD_2012_85.062004.pdf unknown DigitalCommons@University of Nebraska - Lincoln https://digitalcommons.unl.edu/physicsfacpub/97 https://digitalcommons.unl.edu/context/physicsfacpub/article/1102/viewcontent/Kravchenko_PhysRevD_2012_85.062004.pdf Faculty Publications, Department of Physics and Astronomy Physics text 2012 ftunivnebraskali 2023-10-30T10:59:30Z The RICE experiment seeks observation of ultra-high energy (UHE; Ev > 1017 eV) neutrinos interacting in Antarctic ice, by measurement of the radio frequency (RF) Cherenkov radiation resulting from the collision of a neutrino with an ice molecule. RICE was initiated in 1999 as a first-generation prototype for an eventual, large-scale in-ice UHE neutrino detector. Herein, we present updated limits on the diffuse UHE neutrino flux, based on 12 years of data taken between 1999 and 2010. We find no convincing neutrino candidates, resulting in 95% confidence-level model-dependent limits on the flux E2v dϕ/ dEv < 0.5 X 10-6 GeV/(cm2 s-sr) in the energy range 1017 < Ev < 1020 eV, or approximately a twofold improvement over our previously published results. Recently, the focus of RICE science has shifted to studies of radio frequency ice properties as the RICE experimental hardware has been absorbed into a new experimental initiative (the Askaryan Radio Array, or ‘‘ARA’’) at the south pole. ARA seeks to improve on the RICE sensitivity by approximately 2 orders of magnitude by 2017 and thereby establish the cosmogenic neutrino flux. As detailed herein, RICE studies of Antarctic ice demonstrate that both birefringence and internal layer RF scattering result in no significant loss of ARA neutrino sensitivity, and, for the first time, verify in situ the decrease in attenuation length with depth into the Antarctic ice sheet. Text Antarc* Antarctic Ice Sheet South pole South pole University of Nebraska-Lincoln: DigitalCommons@UNL Antarctic The Antarctic South Pole |
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Physics Kravchenko, Ilya Hussain, S. Seckel, D. Besson, Dave Z. Fensholt, E. Ralston, John P. Taylor, J. Ratzlaff, Kenneth L. Young, R. Updated results from the RICE experiment and future prospects for ultra-high energy neutrino detection at the south pole |
topic_facet |
Physics |
description |
The RICE experiment seeks observation of ultra-high energy (UHE; Ev > 1017 eV) neutrinos interacting in Antarctic ice, by measurement of the radio frequency (RF) Cherenkov radiation resulting from the collision of a neutrino with an ice molecule. RICE was initiated in 1999 as a first-generation prototype for an eventual, large-scale in-ice UHE neutrino detector. Herein, we present updated limits on the diffuse UHE neutrino flux, based on 12 years of data taken between 1999 and 2010. We find no convincing neutrino candidates, resulting in 95% confidence-level model-dependent limits on the flux E2v dϕ/ dEv < 0.5 X 10-6 GeV/(cm2 s-sr) in the energy range 1017 < Ev < 1020 eV, or approximately a twofold improvement over our previously published results. Recently, the focus of RICE science has shifted to studies of radio frequency ice properties as the RICE experimental hardware has been absorbed into a new experimental initiative (the Askaryan Radio Array, or ‘‘ARA’’) at the south pole. ARA seeks to improve on the RICE sensitivity by approximately 2 orders of magnitude by 2017 and thereby establish the cosmogenic neutrino flux. As detailed herein, RICE studies of Antarctic ice demonstrate that both birefringence and internal layer RF scattering result in no significant loss of ARA neutrino sensitivity, and, for the first time, verify in situ the decrease in attenuation length with depth into the Antarctic ice sheet. |
format |
Text |
author |
Kravchenko, Ilya Hussain, S. Seckel, D. Besson, Dave Z. Fensholt, E. Ralston, John P. Taylor, J. Ratzlaff, Kenneth L. Young, R. |
author_facet |
Kravchenko, Ilya Hussain, S. Seckel, D. Besson, Dave Z. Fensholt, E. Ralston, John P. Taylor, J. Ratzlaff, Kenneth L. Young, R. |
author_sort |
Kravchenko, Ilya |
title |
Updated results from the RICE experiment and future prospects for ultra-high energy neutrino detection at the south pole |
title_short |
Updated results from the RICE experiment and future prospects for ultra-high energy neutrino detection at the south pole |
title_full |
Updated results from the RICE experiment and future prospects for ultra-high energy neutrino detection at the south pole |
title_fullStr |
Updated results from the RICE experiment and future prospects for ultra-high energy neutrino detection at the south pole |
title_full_unstemmed |
Updated results from the RICE experiment and future prospects for ultra-high energy neutrino detection at the south pole |
title_sort |
updated results from the rice experiment and future prospects for ultra-high energy neutrino detection at the south pole |
publisher |
DigitalCommons@University of Nebraska - Lincoln |
publishDate |
2012 |
url |
https://digitalcommons.unl.edu/physicsfacpub/97 https://digitalcommons.unl.edu/context/physicsfacpub/article/1102/viewcontent/Kravchenko_PhysRevD_2012_85.062004.pdf |
geographic |
Antarctic The Antarctic South Pole |
geographic_facet |
Antarctic The Antarctic South Pole |
genre |
Antarc* Antarctic Ice Sheet South pole South pole |
genre_facet |
Antarc* Antarctic Ice Sheet South pole South pole |
op_source |
Faculty Publications, Department of Physics and Astronomy |
op_relation |
https://digitalcommons.unl.edu/physicsfacpub/97 https://digitalcommons.unl.edu/context/physicsfacpub/article/1102/viewcontent/Kravchenko_PhysRevD_2012_85.062004.pdf |
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