Dominik Böhnlein

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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)
Results are reported from a search for active to sterile neutrino oscillations in the MINOS long-baseline experiment, based on the observation of neutral-current neutrino interactions, from an exposure to the NuMI neutrino beam of 7.07×10(20) protons on target. A total of 802 neutral-current event candidates is observed in the Far Detector, compared to an(More)
In early 2010, the Long-Baseline Neutrino Experiment (LBNE) science collaboration initiated a study to investigate the physics potential of the experiment with a broad set of different beam, nearand far-detector configurations. Nine initial topics were identified as scientific areas that motivate construction of a long-baseline neutrino experiment with a(More)
We report the results of a search for ν(e) appearance in a ν(μ) beam in the MINOS long-baseline neutrino experiment. With an improved analysis and an increased exposure of 8.2 × 10(20) protons on the NuMI target at Fermilab, we find that 2 sin(2) (θ(23))sin(2)(2θ(13))<0.12(0.20) at 90% confidence level for δ = 0 and the normal (inverted) neutrino mass(More)
P. Adamson, C. Andreopoulos, K. E. Arms, R. Armstrong, D. J. Auty, D. S. Ayres, C. Backhouse, J. Barnett, G. Barr, W. L. Barrett, B. R. Becker, M. Bishai, A. Blake, B. Bock, G. J. Bock, D. J. Boehnlein, D. Bogert, C. Bower, S. Cavanaugh, J. D. Chapman, D. Cherdack, S. Childress, B. C. Choudhary,* J. H. Cobb, S. J. Coleman, D. Cronin-Hennessy, A. J. Culling,(More)
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(More)
P. Adamson, C. Andreopoulos, D. J. Auty, D. S. Ayres, C. Backhouse, P. D. Barnes, Jr., G. Barr, W. L. Barrett, M. Bishai, A. Blake, G. J. Bock, D. J. Boehnlein, D. Bogert, C. Bower, S. Cavanaugh, J. D. Chapman, D. Cherdack, S. Childress, B. C. Choudhary,* J. A. B. Coelho, J. H. Cobb, S. J. Coleman, J. P. Cravens, D. Cronin-Hennessy, A. J. Culling, I. Z.(More)
P. Adamson, C. Andreopoulos, K. E. Arms, R. Armstrong, D. J. Auty, S. Avvakumov, D. S. Ayres, B. Baller, B. Barish, P. D. Barnes, Jr., G. Barr, W. L. Barrett, E. Beall,* B. R. Becker, A. Belias, T. Bergfeld, R. H. Bernstein, D. Bhattacharya, M. Bishai, A. Blake, B. Bock, G. J. Bock, J. Boehm, D. J. Boehnlein, D. Bogert, P. M. Border, C. Bower, E.(More)
This Letter reports the first direct observation of muon antineutrino disappearance. The MINOS experiment has taken data with an accelerator beam optimized for ν(μ) production, accumulating an exposure of 1.71 × 10²⁰ protons on target. In the Far Detector, 97 charged current ν(μ) events are observed. The no-oscillation hypothesis predicts 156 events and is(More)