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Title: A New Upper Limit for the Tau Neutrino Magnetic Moment

Abstract

The tau-neutrino enriched neutrino beam in the Fermilab experiment E872 (DONUT) provides a unique opportunity to study tau neutrino properties. A non-vanishing tau-neutrino magnetic moment is consistent with the recent observation of neutrino mass and gives rise to electromagnetic interactions between neutrinos and charged particles. The resulting increase in the neutrino-electron scattering cross-section can be detected experimentally. This thesis presents a search for an excess of neutrino-electron scattering events in the DONUT data set. The analysis of 6,000,000 recorded triggers yielded two candidate events with 4.4 expected background events from Standard Model processes. No evidence for non-Standard Model interactions has therefore been found, and the new upper limit for the tau-neutrino magnetic moment is $$\mu_{\nu_{\tau}} \le 4.2 \times 10^{-7} \mu_B$$

Authors:
 [1]
  1. Minnesota U.
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1421473
Report Number(s):
FERMILAB-THESIS-2000-14; UMI-99-73012
528718
DOE Contract Number:  
AC02-07CH11359
Resource Type:
Thesis/Dissertation
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Schwienhorst, Reinhard Heinrich. A New Upper Limit for the Tau Neutrino Magnetic Moment. United States: N. p., 2000. Web. doi:10.2172/1421473.
Schwienhorst, Reinhard Heinrich. A New Upper Limit for the Tau Neutrino Magnetic Moment. United States. doi:10.2172/1421473.
Schwienhorst, Reinhard Heinrich. Mon . "A New Upper Limit for the Tau Neutrino Magnetic Moment". United States. doi:10.2172/1421473. https://www.osti.gov/servlets/purl/1421473.
@article{osti_1421473,
title = {A New Upper Limit for the Tau Neutrino Magnetic Moment},
author = {Schwienhorst, Reinhard Heinrich},
abstractNote = {The tau-neutrino enriched neutrino beam in the Fermilab experiment E872 (DONUT) provides a unique opportunity to study tau neutrino properties. A non-vanishing tau-neutrino magnetic moment is consistent with the recent observation of neutrino mass and gives rise to electromagnetic interactions between neutrinos and charged particles. The resulting increase in the neutrino-electron scattering cross-section can be detected experimentally. This thesis presents a search for an excess of neutrino-electron scattering events in the DONUT data set. The analysis of 6,000,000 recorded triggers yielded two candidate events with 4.4 expected background events from Standard Model processes. No evidence for non-Standard Model interactions has therefore been found, and the new upper limit for the tau-neutrino magnetic moment is $\mu_{\nu_{\tau}} \le 4.2 \times 10^{-7} \mu_B$},
doi = {10.2172/1421473},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {5}
}

Thesis/Dissertation:
Other availability
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