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Indications of Neutrino Oscillation in a 250 km Long-Baseline Experiment
- Source :
- Scopus-Elsevier
- Publication Year :
- 2003
- Publisher :
- American Physical Society, 2003.
-
Abstract
- The K2K experiment observes indications of neutrino oscillation: a reduction of $\nu_\mu$ flux together with a distortion of the energy spectrum. Fifty-six beam neutrino events are observed in Super-Kamiokande (SK), 250 km from the neutrino production point, with an expectation of $80.1^{+6.2}_{-5.4}$. Twenty-nine one ring $\mu$-like events are used to reconstruct the neutrino energy spectrum, which is better matched to the expected spectrum with neutrino oscillation than without. The probability that the observed flux at SK is explained by statistical fluctuation without neutrino oscillation is less than 1%.<br />Comment: 5 pages, 3 figures embedded, LaTeX with RevTeX style, accepted for publication in PRL on December 13, 2002
- Subjects :
- Physics
Tamura, Norio
Physics::Instrumentation and Detectors
Oscillation
Astrophysics::High Energy Astrophysical Phenomena
Solar neutrino
High Energy Physics::Phenomenology
FOS: Physical sciences
General Physics and Astronomy
Solar neutrino problem
High Energy Physics - Experiment
Nuclear physics
High Energy Physics - Experiment (hep-ex)
K2K experiment
Measurements of neutrino speed
High Energy Physics::Experiment
田村, 詔生
Neutrino
Neutrino oscillation
Charged current
Subjects
Details
- Language :
- English
- ISSN :
- 00319007
- Volume :
- 90
- Issue :
- 041801
- Database :
- OpenAIRE
- Journal :
- Physical Review Letters
- Accession number :
- edsair.doi.dedup.....662e5e7cb13b639763860784b8499bc4