Publications by authors named "M Zois"

Objective: To ensure the highest quality of resident training, by engaging community private physicians (PMDs) as voluntary faculty, through implementing teaching services in both obstetrics (OB) and gynecology (Gyn) in July 2003. We now report on the long-term success and challenges of the strategy.

Study Design: The case volume performed by residents was analyzed using the Accreditation Council for Graduate Medical Education self-reported resident statistics log, while resident educational satisfaction was analyzed using an anonymous survey.

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We searched for a sidereal modulation in the MINOS far detector neutrino rate. Such a signal would be a consequence of Lorentz and CPT violation as described by the standard-model extension framework. It also would be the first detection of a perturbative effect to conventional neutrino mass oscillations.

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This Letter reports on a search for nu(mu) --> nu(e) transitions by the MINOS experiment based on a 3.14x10(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.

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A search for a sidereal modulation in the MINOS near detector neutrino data was performed. If present, this signature could be a consequence of Lorentz and CPT violation as predicted by the effective field theory called the standard-model extension. No evidence for a sidereal signal in the data set was found, implying that there is no significant change in neutrino propagation that depends on the direction of the neutrino beam in a sun-centered inertial frame.

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Article Synopsis
  • The MINOS experiment observed muon neutrinos over two years from the Fermilab NuMI beam, confirming quantum-mechanical oscillations of neutrino flavors.
  • Results showed a mass splitting of |Deltam2| = (2.43+/-0.13) x 10(-3) eV2 and a high mixing angle (sin2(2theta) > 0.90), indicating strong neutrino oscillation.
  • The findings also reject two alternative explanations for neutrino disappearance—decays into lighter particles and quantum decoherence—at statistically significant levels (3.7 and 5.7 standard deviations).
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