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Title: Revising neutrino oscillation parameter space with direct flavor-changing interactions

Abstract

We formulate direct, neutrino flavor-changing interactions in a framework that fits smoothly with the parametrization of two- and three-state mixing of massive neutrino states. We show that even small direct interaction strengths could have important consequences on the interpretation of currently running and proposed oscillation experiments. The oscillation amplitude and the borders of the allowed regions in two- and three-flavor mixing parameter space can be sensitive to the presence of direct interactions when the transition probability is small. We use extensively the high sensitivity of the NOMAD experiment to illustrate potentially large effects from small, direct flavor violation. In the purely leptonic sector, we find that the clean {nu}{sub {mu}} and {nu}{sub e} beams from a {mu}{sup +}-{mu}{sup -} collider could provide the sharpest tests of direct flavor violation. (c) 2000 The American Physical Society.

Authors:
 [1];  [2]
  1. Department of Physics, Grinnell College, Grinnell, Iowa 50112 (United States)
  2. Department of Physics and Astronomy, University of Kansas, Lawrence, Kansas 66045 (United States)
Publication Date:
OSTI Identifier:
20216462
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 61; Journal Issue: 11; Other Information: PBD: 1 Jun 2000; Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; NEUTRINO OSCILLATION; FLAVOR MODEL; MUON NEUTRINOS; ELECTRON NEUTRINOS; THEORETICAL DATA

Citation Formats

Johnson, Loretta M., and McKay, Douglas W. Revising neutrino oscillation parameter space with direct flavor-changing interactions. United States: N. p., 2000. Web. doi:10.1103/PhysRevD.61.113007.
Johnson, Loretta M., & McKay, Douglas W. Revising neutrino oscillation parameter space with direct flavor-changing interactions. United States. doi:10.1103/PhysRevD.61.113007.
Johnson, Loretta M., and McKay, Douglas W. Thu . "Revising neutrino oscillation parameter space with direct flavor-changing interactions". United States. doi:10.1103/PhysRevD.61.113007.
@article{osti_20216462,
title = {Revising neutrino oscillation parameter space with direct flavor-changing interactions},
author = {Johnson, Loretta M. and McKay, Douglas W.},
abstractNote = {We formulate direct, neutrino flavor-changing interactions in a framework that fits smoothly with the parametrization of two- and three-state mixing of massive neutrino states. We show that even small direct interaction strengths could have important consequences on the interpretation of currently running and proposed oscillation experiments. The oscillation amplitude and the borders of the allowed regions in two- and three-flavor mixing parameter space can be sensitive to the presence of direct interactions when the transition probability is small. We use extensively the high sensitivity of the NOMAD experiment to illustrate potentially large effects from small, direct flavor violation. In the purely leptonic sector, we find that the clean {nu}{sub {mu}} and {nu}{sub e} beams from a {mu}{sup +}-{mu}{sup -} collider could provide the sharpest tests of direct flavor violation. (c) 2000 The American Physical Society.},
doi = {10.1103/PhysRevD.61.113007},
journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 11,
volume = 61,
place = {United States},
year = {2000},
month = {6}
}