4.8 Article

Measurement of the Neutrino Mass Splitting and Flavor Mixing by MINOS

Journal

PHYSICAL REVIEW LETTERS
Volume 106, Issue 18, Pages -

Publisher

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.106.181801

Keywords

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Funding

  1. U.S. DOE
  2. UK STFC
  3. U.S. NSF
  4. State and University of Minnesota
  5. University of Athens, Greece
  6. Brazil FAPESP
  7. Brazil CNPq
  8. Brazil CAPES
  9. STFC [ST/H001026/2, PP/E000347/1, ST/I002626/1, ST/H000887/2, PP/E000398/1, ST/H001093/1, ST/H001026/1, ST/H000887/1, MINOS/MINOS+, ST/F006977/1, ST/H001093/2, ST/K00073X/1] Funding Source: UKRI
  10. Division Of Physics
  11. Direct For Mathematical & Physical Scien [0970111] Funding Source: National Science Foundation
  12. Division Of Physics
  13. Direct For Mathematical & Physical Scien [0855429, 969492] Funding Source: National Science Foundation
  14. Science and Technology Facilities Council [PP/E000347/1, ST/H001093/1, ST/I002626/1, ST/H000887/2, ST/H000887/1, PP/E000398/1, ST/H001026/2, ST/H001026/1, ST/I002634/1 MINOS/MINOS+, ST/H001093/2, MINOS/MINOS+, ST/K00073X/1, ST/F006977/1, ST/I002626/1 MINOS/MINOS+] Funding Source: researchfish

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Measurements of neutrino oscillations using the disappearance of muon neutrinos from the Fermilab NuMI neutrino beam as observed by the two MINOS detectors are reported. New analysis methods have been applied to an enlarged data sample from an exposure of 7.25 x 10(20) protons on target. A fit to neutrino oscillations yields values of vertical bar Delta m(2)vertical bar = (2.32(-0.08)(+0.12) x 10(-3) eV(2) for the atmospheric mass splitting and sin(2)(2 theta) > 0.90 (90% C.L.) for the mixing angle. Pure neutrino decay and quantum decoherence hypotheses are excluded at 7 and 9 standard deviations, respectively.

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