Tau appearance in atmospheric neutrino interactions

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If the correct interpretation of the Super-Kamiokande atmospheric neutrino data is {nu}{sub {mu}} {yields} {nu}{sub {tau}} oscillation, the contained data sample should already have more than 10 {tau} appearance events. We study the challenging task of detecting the {tau}, focusing on the decay chain {tau}{sup {+-}} {yields} {rho}{sup {+-}} {yields} {pi}{sup {+-}}{pi}{sup 0} in events with quasi-elastic {tau} production. The background level, which is currently quite uncertain because of a lack of relevant neutral current data, can be measured by the near detector in the K2K experiment. Our estimates of the background suggest that it may be possible to detect ... continued below

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14 pages

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Hall, Lawrence J. & Murayama, Hitoshi October 24, 1998.

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Description

If the correct interpretation of the Super-Kamiokande atmospheric neutrino data is {nu}{sub {mu}} {yields} {nu}{sub {tau}} oscillation, the contained data sample should already have more than 10 {tau} appearance events. We study the challenging task of detecting the {tau}, focusing on the decay chain {tau}{sup {+-}} {yields} {rho}{sup {+-}} {yields} {pi}{sup {+-}}{pi}{sup 0} in events with quasi-elastic {tau} production. The background level, which is currently quite uncertain because of a lack of relevant neutral current data, can be measured by the near detector in the K2K experiment. Our estimates of the background suggest that it may be possible to detect {tau} appearance in Super-Kamiokande with 5-10 years of running.

Physical Description

14 pages

Notes

INIS; OSTI as DE00836541

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  • Journal Name: Physics Letters B; Journal Volume: 463; Journal Issue: 2-4; Other Information: Submitted to Physics Letters B: Volume 463, No.2-4; Journal Publication Date: 09/30/1999

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  • Report No.: LBNL-42429
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 836541
  • Grant Number: PHY-95-14797
  • Archival Resource Key: ark:/67531/metadc778990

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  • October 24, 1998

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  • Dec. 3, 2015, 9:30 a.m.

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  • June 22, 2016, 6:38 p.m.

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Hall, Lawrence J. & Murayama, Hitoshi. Tau appearance in atmospheric neutrino interactions, article, October 24, 1998; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc778990/: accessed August 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.