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Title: Echo Technique to Distinguish Flavors of Astrophysical Neutrinos

Abstract

The flavor composition of high-energy astrophysical neutrinos is a rich observable. However, present analyses cannot effectively distinguish particle showers induced by ν e vs ν τ. We show that this can be accomplished by measuring the intensities of the delayed, collective light emission from muon decays and neutron captures, which are, on average, greater for ν τ than for ν e. In conclusion, this new technique would significantly improve tests of the nature of astrophysical sources and of neutrino properties. We discuss the promising prospects for implementing it in IceCube and other detectors.

Authors:
 [1];  [2];  [3]
  1. The Ohio State Univ., Columbus, OH (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
  2. The Ohio State Univ., Columbus, OH (United States); Niels Bohr Institute, Copenhagen (Denmark)
  3. The Ohio State Univ., Columbus, OH (United States)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1526442
Grant/Contract Number:  
AC02-76SF00515; PHY-1404311
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 122; Journal Issue: 15; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; 43 PARTICLE ACCELERATORS

Citation Formats

Li, Shirley Weishi, Bustamante, Mauricio, and Beacom, John F. Echo Technique to Distinguish Flavors of Astrophysical Neutrinos. United States: N. p., 2019. Web. doi:10.1103/physrevlett.122.151101.
Li, Shirley Weishi, Bustamante, Mauricio, & Beacom, John F. Echo Technique to Distinguish Flavors of Astrophysical Neutrinos. United States. doi:10.1103/physrevlett.122.151101.
Li, Shirley Weishi, Bustamante, Mauricio, and Beacom, John F. Tue . "Echo Technique to Distinguish Flavors of Astrophysical Neutrinos". United States. doi:10.1103/physrevlett.122.151101.
@article{osti_1526442,
title = {Echo Technique to Distinguish Flavors of Astrophysical Neutrinos},
author = {Li, Shirley Weishi and Bustamante, Mauricio and Beacom, John F.},
abstractNote = {The flavor composition of high-energy astrophysical neutrinos is a rich observable. However, present analyses cannot effectively distinguish particle showers induced by νe vs ντ. We show that this can be accomplished by measuring the intensities of the delayed, collective light emission from muon decays and neutron captures, which are, on average, greater for ντ than for νe. In conclusion, this new technique would significantly improve tests of the nature of astrophysical sources and of neutrino properties. We discuss the promising prospects for implementing it in IceCube and other detectors.},
doi = {10.1103/physrevlett.122.151101},
journal = {Physical Review Letters},
number = 15,
volume = 122,
place = {United States},
year = {2019},
month = {4}
}

Journal Article:
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This content will become publicly available on April 16, 2020
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Cited by: 4 works
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