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Title: Improved Search for {nu}{sub {mu}}{yields}{nu}{sub e} Oscillation in a Long-Baseline Accelerator Experiment

Abstract

We performed an improved search for {nu}{sub {mu}}{yields}{nu}{sub e} oscillation with the KEK to Kamioka (K2K) long-baseline neutrino oscillation experiment, using the full data sample of 9.2x10{sup 19} protons on target. No evidence for a {nu}{sub e} appearance signal was found, and we set bounds on the {nu}{sub {mu}}{yields}{nu}{sub e} oscillation parameters. At {delta}m{sup 2}=2.8x10{sup -3} eV{sup 2}, the best-fit value of the K2K {nu}{sub {mu}} disappearance analysis, we set an upper limit of sin{sup 2}2{theta}{sub {mu}}{sub e}<0.13 at a 90% confidence level.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ;  [1];  [2]; ; ; ;  [3]
  1. Department of Physics, Kyoto University, Kyoto 606-8502 (Japan)
  2. A. Soltan Institute for Nuclear Studies, 00-681 Warsaw (Poland)
  3. Institut de Fisica d'Altes Energies, Universitat Autonoma de Barcelona, E-08193 Bellaterra, Barcelona (Spain) (and others)
Publication Date:
OSTI Identifier:
20775235
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 96; Journal Issue: 18; Other Information: DOI: 10.1103/PhysRevLett.96.181801; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ACCELERATORS; ELECTRON NEUTRINOS; MUON NEUTRINOS; NEUTRINO OSCILLATION; PROTONS

Citation Formats

Yamamoto, S., Hasegawa, M., Hayashi, K., Hiraide, K., Inagaki, T., Kubota, J., Kurimoto, Y., Maesaka, H., Morita, T., Nakaya, T., Nishikawa, K., Sasaki, T., Sato, H., Ueda, S., Yokoyama, M., Zalipska, J., Aliu, E., Andringa, S., Espinal, X., and Fernandez, E. Improved Search for {nu}{sub {mu}}{yields}{nu}{sub e} Oscillation in a Long-Baseline Accelerator Experiment. United States: N. p., 2006. Web. doi:10.1103/PhysRevLett.96.181801.
Yamamoto, S., Hasegawa, M., Hayashi, K., Hiraide, K., Inagaki, T., Kubota, J., Kurimoto, Y., Maesaka, H., Morita, T., Nakaya, T., Nishikawa, K., Sasaki, T., Sato, H., Ueda, S., Yokoyama, M., Zalipska, J., Aliu, E., Andringa, S., Espinal, X., & Fernandez, E. Improved Search for {nu}{sub {mu}}{yields}{nu}{sub e} Oscillation in a Long-Baseline Accelerator Experiment. United States. doi:10.1103/PhysRevLett.96.181801.
Yamamoto, S., Hasegawa, M., Hayashi, K., Hiraide, K., Inagaki, T., Kubota, J., Kurimoto, Y., Maesaka, H., Morita, T., Nakaya, T., Nishikawa, K., Sasaki, T., Sato, H., Ueda, S., Yokoyama, M., Zalipska, J., Aliu, E., Andringa, S., Espinal, X., and Fernandez, E. Fri . "Improved Search for {nu}{sub {mu}}{yields}{nu}{sub e} Oscillation in a Long-Baseline Accelerator Experiment". United States. doi:10.1103/PhysRevLett.96.181801.
@article{osti_20775235,
title = {Improved Search for {nu}{sub {mu}}{yields}{nu}{sub e} Oscillation in a Long-Baseline Accelerator Experiment},
author = {Yamamoto, S. and Hasegawa, M. and Hayashi, K. and Hiraide, K. and Inagaki, T. and Kubota, J. and Kurimoto, Y. and Maesaka, H. and Morita, T. and Nakaya, T. and Nishikawa, K. and Sasaki, T. and Sato, H. and Ueda, S. and Yokoyama, M. and Zalipska, J. and Aliu, E. and Andringa, S. and Espinal, X. and Fernandez, E.},
abstractNote = {We performed an improved search for {nu}{sub {mu}}{yields}{nu}{sub e} oscillation with the KEK to Kamioka (K2K) long-baseline neutrino oscillation experiment, using the full data sample of 9.2x10{sup 19} protons on target. No evidence for a {nu}{sub e} appearance signal was found, and we set bounds on the {nu}{sub {mu}}{yields}{nu}{sub e} oscillation parameters. At {delta}m{sup 2}=2.8x10{sup -3} eV{sup 2}, the best-fit value of the K2K {nu}{sub {mu}} disappearance analysis, we set an upper limit of sin{sup 2}2{theta}{sub {mu}}{sub e}<0.13 at a 90% confidence level.},
doi = {10.1103/PhysRevLett.96.181801},
journal = {Physical Review Letters},
number = 18,
volume = 96,
place = {United States},
year = {Fri May 12 00:00:00 EDT 2006},
month = {Fri May 12 00:00:00 EDT 2006}
}