J Reichenbacher

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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 1.27 x 10(20) 120 GeV protons incident on the NuMI target, 215 events(More)
This Letter reports new results from the MINOS experiment based on a two-year exposure to muon neutrinos from the Fermilab NuMI beam. Our data are consistent with quantum-mechanical oscillations of neutrino flavor with mass splitting |Deltam2| = (2.43+/-0.13) x 10(-3) eV2 (68% C.L.) and mixing angle sin2(2theta) > 0.90 (90% C.L.). Our data disfavor two(More)
The temperature of the upper atmosphere affects the height of primary cosmic ray interactions and the production of high-energy cosmic ray muons which can be detected deep underground. The MINOS far detector at Soudan, MN, has collected over 67 Â 10 6 cosmic ray induced muons. The underground muon rate measured over a period of five years exhibits a 4%(More)
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. If interpreted in terms of nu(mu) --> nu(e)(More)
  • Y Abe, J C Dos Anjos, J C Barriere, E Baussan, I Bekman, M Bergevin +142 others
  • 2014
The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. Abstract: The Double Chooz experiment measures the neutrino mixing angle θ 13 by detecting reactor ¯ ν e via inverse beta decay. The positron-neutron space and time coincidence allows for a sizable background rejection, nonetheless liquid(More)
  • Citation Abe, C Aberle, J C Dos Anjos, J C Barriere, M Bergevin, A Bernstein +23 others
  • 2012
The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. Double Chooz is unique among modern reactor-based neutrino experiments studying ¯ νe disappearance in that data can be collected with all reactors off. In this paper, we present data from 7.53 days of reactor-off running. Applying the same(More)
The MINOS experiment has observed a rise in the underground muon charge ratio r µ = µ + /µ −. This ratio can be related to the atmospheric production ratios of π + /π − and K + /K −. Our analysis indicates that the relevant variable for studying the charge ratio is E surf ace µ cos θ, rather than E surf ace µ. We compare a simple energy dependent(More)
Atmospheric Science (NCAS) and the MINOS collaboration. The NCAS authors are listed, followed by the MINOS authors. yThe MINOS authors are listed from this point. The authors are arranged alphabetically by surname. [1] The rate of high energy cosmic ray muons as measured underground is shown to be strongly correlated with upper-air temperatures during(More)
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