Michael, DG;
Adamson, P;
Alexopoulos, T;
Allison, WWM;
Alner, GJ;
Anderson, K;
Andreopoulos, C;
... MINOS Collaboration; + view all
(2006)
Observation of muon neutrino disappearance with the MINOS detectors in the NuMI neutrino beam.
PHYS REV LETT
, 97
(19)
, Article 191801. 10.1103/PhysRevLett.97.191801.
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Abstract
This Letter reports results from the MINOS experiment based on its initial exposure to neutrinos from the Fermilab NuMI beam. The rates and energy spectra of charged current nu(mu) interactions are compared in two detectors located along the beam axis at distances of 1 and 735 km. With 1.27x10(20) 120 GeV protons incident on the NuMI target, 215 events with energies below 30 GeV are observed at the Far Detector, compared to an expectation of 336 +/- 14 events. The data are consistent with nu(mu) disappearance via oscillations with vertical bar Delta m(32)(2)vertical bar=2.74(-0.26)(+0.44)x10(-3) eV(2) and sin(2)(2 theta(23))> 0.87 (68% C.L.).
| Type: | Article |
|---|---|
| Title: | Observation of muon neutrino disappearance with the MINOS detectors in the NuMI neutrino beam |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.97.191801 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.97.191801 |
| Language: | English |
| Additional information: | © 2006 The American Physical Society |
| Keywords: | INJECTION CALIBRATION SYSTEM, FAR DETECTOR, PHOTOMULTIPLIERS, OSCILLATIONS, PERFORMANCE |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/176503 |
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