Search for muon-neutrino to electron-neutrino transitions in MINOS

Journal Article · Tue Sep 01 00:00:00 EDT 2009 · Submitted to Phys.Rev.Lett.

DOI:https://doi.org/10.1103/PhysRevLett.103.261802· OSTI ID:965405

Adamson, P; Andreopoulos, C; Arms, K E; Armstrong, R; Auty, D J; Ayres, D S; Backhouse, C; Barnes, Jr, P D; Barr, G; Barrett, W L; Becker, B R

This letter reports on a search for {nu}{sub {mu}} {yields} {nu}{sub e} transitions by the MINOS experiment based on a 3.14 x 10{sup 20} protons-on-target exposure in the Fermilab NuMI beam. We observe 35 events in the Far Detector with a background of 27 {+-} 5(stat.) {+-} 2(syst.) events predicted by the measurements in the Near Detector. If interpreted in terms of {nu}{sub {mu}} {yields} {nu}{sub e} oscillations, this 1.5 {sigma} excess of events is consistent with sin{sup 2}(2{theta}{sub 13}) comparable to the CHOOZ limit when |{Delta}m{sup 2}| = 2.43 x 10{sup -3} eV{sup 2} and sin{sup 2} (2{theta}{sub 23}) = 1.0 are assumed.

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 965405
• Report Number(s): FERMILAB-PUB-09-443-E; arXiv eprint number arXiv:0909.4996; TRN: US0903686
• Journal Information: Submitted to Phys.Rev.Lett., Vol. 103, Issue 26; ISSN 0031--9007
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
FERMILAB
OSCILLATIONS
PHYSICS
MUON NEUTRINOS
ELECTRON NEUTRINOS
Experiment-HEP