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Phys Rev Lett. 2008 Nov 28;101(22):221804. doi: 10.1103/PhysRevLett.101.221804. Epub 2008 Nov 26.

Search for active neutrino disappearance using neutral-current interactions in the MINOS long-baseline experiment.

Physical review letters

P Adamson, C Andreopoulos, K E Arms, R Armstrong, D J Auty, D S Ayres, C Backhouse, B Baller, G Barr, W L Barrett, B R Becker, A Belias, R H Bernstein, D Bhattacharya, M Bishai, A Blake, G J Bock, J Boehm, D J Boehnlein, D Bogert, C Bower, E Buckley-Geer, S Cavanaugh, J D Chapman, D Cherdack, S Childress, B C Choudhary, J H Cobb, S J Coleman, A J Culling, J K de Jong, M Dierckxsens, M V Diwan, M Dorman, S A Dytman, C O Escobar, J J Evans, E Falk Harris, G J Feldman, M V Frohne, H R Gallagher, A Godley, M C Goodman, P Gouffon, R Gran, E W Grashorn, N Grossman, K Grzelak, A Habig, D Harris, P G Harris, J Hartnell, R Hatcher, K Heller, A Himmel, A Holin, L Hsu, J Hylen, G M Irwin, M Ishitsuka, D E Jaffe, C James, D Jensen, T Kafka, S M S Kasahara, J J Kim, M S Kim, G Koizumi, S Kopp, M Kordosky, D J Koskinen, S K Kotelnikov, A Kreymer, S Kumaratunga, K Lang, J Ling, P J Litchfield, R P Litchfield, L Loiacono, P Lucas, J Ma, W A Mann, A Marchionni, M L Marshak, J S Marshall, N Mayer, A M McGowan, J R Meier, M D Messier, C J Metelko, D G Michael, W H Miller, S R Mishra, C D Moore, J Morfín, L Mualem, S Mufson, S Murgia, J Musser, D Naples, J K Nelson, H B Newman, R J Nichol, T C Nicholls, J P Ochoa-Ricoux, W P Oliver, R Ospanov, J Paley, V Paolone, A Para, T Patzak, Z Pavlović, G Pawloski, G F Pearce, C W Peck, D A Petyt, R Pittam, R K Plunkett, A Rahaman, R A Rameika, T M Raufer, B Rebel, J Reichenbacher, P A Rodrigues, C Rosenfeld, H A Rubin, V A Ryabov, M C Sanchez, N Saoulidou, J Schneps, P Schreiner, P Shanahan, W Smart, C Smith, A Sousa, B Speakman, P Stamoulis, M Strait, N Tagg, R L Talaga, M A Tavera, J Thomas, M A Thomson, J L Thron, G Tinti, I Trostin, V A Tsarev, G Tzanakos, J Urheim, P Vahle, B Viren, D R Ward, M Watabe, A Weber, R C Webb, A Wehmann, N West, C White, S G Wojcicki, D M Wright, T Yang, K Zhang, R Zwaska,

Affiliations

  1. Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA.

PMID: 19113477 DOI: 10.1103/PhysRevLett.101.221804

Abstract

We report the first detailed comparisons of the rates and spectra of neutral-current neutrino interactions at two widely separated locations. A depletion in the rate at the far site would indicate mixing between nu(mu) and a sterile particle. No anomalous depletion in the reconstructed energy spectrum is observed. Assuming oscillations occur at a single mass-squared splitting, a fit to the neutral- and charged-current energy spectra limits the fraction of nu(mu) oscillating to a sterile neutrino to be below 0.68 at 90% confidence level. A less stringent limit due to a possible contribution to the measured neutral-current event rate at the far site from nu(e) appearance at the current experimental limit is also presented.

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