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Toner, Ruth

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Toner, Ruth
Author's Publications: search.filters.isAuthorOfPublication.7fcec667-5049-4f73-ad55-8de41adaddc0Subject: search.filters.subject.experimental resultsSubject: search.filters.subject.FermilabAuthor: search.filters.author.Bishai, M.

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    Search for Lorentz Invariance and CPT Violation with the MINOS Far Detector

    (American Physical Society (APS), 2010) Adamson, P.; Auty, D. J.; Ayres, D. S.; Backhouse, C.; Barr, G.; Barrett, W. L.; Bishai, M.; Blake, A.; Bock, G. J.; Boehnlein, D. J.; Bogert, D.; Bower, C.; Budd, S.; Cavanaugh, S.; Cherdack, D.; Childress, S.; Choudhary, B. C.; Coelho, J. A. B.; Cobb, J. H.; Coleman, S. J.; Corwin, L.; Cravens, J. P.; Cronin-Hennessy, D.; Danko, I. Z.; de Jong, J. K.; Devenish, N. E.; Diwan, M. V.; Dorman, M.; Escobar, C. O.; Evans, J. J.; Falk, E.; Feldman, Gary; Frohne, M. V.; Gallagher, H. R.; Gomes, R. A.; Goodman, M. C.; Gouffon, P.; Gran, R.; Grant, N.; Grzelak, K.; Habig, A.; Harris, D.; Harris, P. G.; Hartnell, J.; Hatcher, R.; Himmel, A.; Holin, A.; Huang, X.; Hylen, J.; Ilic, J.; Irwin, G. M.; Isvan, Z.; Jaffe, D. E.; James, C.; Jensen, D.; Kafka, T.; Kasahara, S. M. S.; Koizumi, G.; Kopp, S.; Kordosky, M.; Krahn, Z.; Kreymer, A.; Lang, K.; Lefeuvre, G.; Ling, J.; Litchfield, P. J.; Loiacono, L.; Lucas, P.; Mann, W. A.; Marshak, M. L.; Mayer, N.; McGowan, A. M.; Mehdiyev, R.; Meier, J. R.; Messier, M. D.; Michael, D. G.; Miller, J. L.; Miller, W. H.; Mishra, S. R.; Mitchell, J.; Moore, C. D.; Mualem, L.; Mufson, S.; Musser, J.; Naples, D.; Nelson, J. K.; Newman, H. B.; Nichol, R. J.; Oliver, W. P.; Orchanian, M.; Paley, J.; Patterson, R. B.; Patzak, T.; Pawloski, G.; Pearce, G. F.; Pittam, R.; Plunkett, R. K.; Ratchford, J.; Raufer, T. M.; Rebel, B.; Rodrigues, P. A.; Rosenfeld, C.; Rubin, H. A.; Ryabov, V. A.; Sanchez, M. C.; Saoulidou, N.; Schneps, J.; Schreiner, P.; Semenov, V. K.; Shanahan, P.; Smart, W.; Sousa, A.; Strait, M.; Tagg, N.; Talaga, R. L.; Thomas, J.; Thomson, M. A.; Tinti, G.; Toner, Ruth; Tzanakos, G.; Urheim, J.; Vahle, P.; Viren, B.; Weber, A.; Webb, R. C.; White, C.; Whitehead, L.; Wojcicki, S. G.; Wright, D. M.; Yang, T.; Zois, M.; Zwaska, R.

    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. We found no evidence for this sidereal signature, and the upper limits placed on the magnitudes of the Lorentz and CPT violating coefficients describing the theory are an improvement by factors of 20–510 over the current best limits found by using the MINOS near detector.

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    Improved Search for Muon-Neutrino to Electron-Neutrino Oscillations in MINOS

    (American Physical Society (APS), 2011) Adamson, P.; Auty, D. J.; Ayres, D. S.; Backhouse, C.; Barr, G.; Betancourt, M.; Bishai, M.; Blake, A.; Bock, G. J.; Boehnlein, D. J.; Bogert, D.; Cao, S. V.; Cavanaugh, S.; Cherdack, D.; Childress, S.; Coelho, J. A. B.; Corwin, L.; Cronin-Hennessy, D.; Danko, I. Z.; de Jong, J. K.; Devenish, N. E.; Diwan, M. V.; Dorman, M.; Escobar, C. O.; Evans, J. J.; Falk, E.; Feldman, Gary; Frohne, M. V.; Gallagher, H. R.; Gomes, R. A.; Goodman, M. C.; Gouffon, P.; Graf, N.; Gran, R.; Grzelak, K.; Habig, A.; Hartnell, J.; Hatcher, R.; Himmel, A.; Holin, A.; Huang, X.; Hylen, J.; Irwin, G. M.; Isvan, Z.; Jaffe, D. E.; James, C.; Jensen, D.; Kafka, T.; Kasahara, S. M. S.; Koizumi, G.; Kopp, S.; Kordosky, M.; Kreymer, A.; Lang, K.; Lefeuvre, G.; Ling, J.; Litchfield, P. J.; Loiacono, L.; Lucas, P.; Mann, W. A.; Marshak, M. L.; Mathis, M.; Mayer, N.; McGowan, A. M.; Mehdiyev, R.; Meier, J. R.; Messier, M. D.; Michael, D. G.; Miller, W. H.; Mishra, S. R.; Mitchell, J.; Moore, C. D.; Mualem, L.; Mufson, S.; Musser, J.; Naples, D.; Nelson, J. K.; Newman, H. B.; Nichol, R. J.; Nowak, J. A.; Ochoa-Ricoux, J. P.; Oliver, W. P.; Orchanian, M.; Paley, J.; Patterson, R. B.; Pawloski, G.; Pearce, G. F.; Phan-Budd, S.; Plunkett, R. K.; Qiu, X.; Ratchford, J.; Rebel, B.; Rosenfeld, C.; Rubin, H. A.; Sanchez, M. C.; Schneps, J.; Schreckenberger, A.; Schreiner, P.; Shanahan, P.; Sharma, R.; Sousa, A.; Tagg, N.; Talaga, R. L.; Thomas, J.; Thomson, M. A.; Toner, Ruth; Torretta, D.; Tzanakos, G.; Urheim, J.; Vahle, P.; Viren, B.; Walding, J. J.; Weber, A.; Webb, R. C.; White, C.; Whitehead, L.; Wojcicki, S. G.; Yang, T.; Zwaska, R.

    We report the results of a search for νe appearance in a νμ beam in the MINOS long-baseline neutrino experiment. With an improved analysis and an increased exposure of 8.2×1020 protons on the NuMI target at Fermilab, we find that 2sin2(θ23)sin2(2θ13)<0.12(0.20) at 90% confidence level for δ=0 and the normal (inverted) neutrino mass hierarchy, with a best-fit of 2sin2(θ23)sin2(2θ13)=0.041+0.047−0.031(0.079+0.071−0.053). The θ13=0 hypothesis is disfavored by the MINOS data at the 89% confidence level.

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    Search for flavor-changing non-standard neutrino interactions by MINOS

    (American Physical Society (APS), 2013) Adamson, P.; Barr, G.; Bishai, M.; Blake, A.; Bock, G. J.; Bogert, D.; Cao, S. V.; Cherdack, D.; Childress, S.; Coelho, J. A. B.; Corwin, L.; Cronin-Hennessy, D.; de Jong, J. K.; Devan, A. V.; Devenish, N. E.; Diwan, M. V.; Escobar, C. O.; Evans, J. J.; Falk, E.; Feldman, Gary; Frohne, M. V.; Gallagher, H. R.; Gomes, R. A.; Goodman, M. C.; Gouffon, P.; Graf, N.; Gran, R.; Grzelak, K.; Habig, A.; Hartnell, J.; Hatcher, R.; Himmel, A.; Holin, A.; Hylen, J.; Irwin, G. M.; Isvan, Z.; James, C.; Jensen, D.; Kafka, T.; Kasahara, S. M. S.; Koizumi, G.; Kordosky, M.; Kreymer, A.; Lang, K.; Ling, J.; Litchfield, P. J.; Lucas, P.; Mann, W. A.; Marshak, M. L.; Mathis, M.; Mayer, N.; Medeiros, M. M.; Mehdiyev, R.; Meier, J. R.; Messier, M. D.; Miller, W. H.; Mishra, S. R.; Moed Sher, S.; Moore, C. D.; Mualem, L.; Mufson, S.; Musser, J.; Naples, D.; Nelson, J. K.; Newman, H. B.; Nichol, R. J.; Nowak, J. A.; Oliver, W. P.; Orchanian, M.; Pahlka, R. B.; Paley, J.; Patterson, R. B.; Pawloski, G.; Phan-Budd, S.; Plunkett, R. K.; Qiu, X.; Radovic, A.; Rebel, B.; Rosenfeld, C.; Rubin, H. A.; Sanchez, M. C.; Schneps, J.; Schreckenberger, A.; Schreiner, P.; Sharma, R.; Sousa, A.; Tagg, N.; Talaga, R. L.; Thomas, J.; Thomson, M. A.; Toner, Ruth; Torretta, D.; Tzanakos, G.; Urheim, J.; Vahle, P.; Viren, B.; Weber, A.; Webb, R. C.; White, C.; Whitehead, L.; Wojcicki, S. G.; Zwaska, R.

    We report new constraints on flavor-changing non-standard neutrino interactions from the MINOS experiment, in which neutrino versus antineutrino interactions can be distinguished on an event-by-event basis. We analyzed a combined set of beam neutrino and antineutrino data from the well-understood NuMI beam, and found no evidence for deviations from standard neutrino mixing. The observed energy spectra constrain the non-standard neutrino interactions parameter to the range −0.20<εμτ<0.07(90%C.L.).

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    New constraints on muon-neutrino to electron-neutrino transitions in MINOS

    (American Physical Society (APS), 2010) Adamson, P.; Andreopoulos, C.; Auty, D. J.; Ayres, D. S.; Backhouse, C.; Barr, G.; Bernstein, R. H.; Betancourt, M.; Bhattarai, P.; Bishai, M.; Blake, A.; Bock, G. J.; Boehm, J.; Boehnlein, D. J.; Bogert, D.; Bower, C.; Budd, S.; Cavanaugh, S.; Cherdack, D.; Childress, S.; Choudhary, B. C.; Cobb, J. H.; Coelho, J. A. B.; Coleman, S. J.; Corwin, L.; Cronin-Hennessy, D.; Danko, I. Z.; de Jong, J. K.; Devenish, N. E.; Diwan, M. V.; Dorman, M.; Escobar, C. O.; Evans, J. J.; Falk, E.; Feldman, Gary; Frohne, M. V.; Gallagher, H. R.; Godley, A.; Goodman, M. C.; Gouffon, P.; Graf, N.; Gran, R.; Grashorn, E. W.; Grzelak, K.; Habig, A.; Harris, D.; Harris, P. G.; Hartnell, J.; Hatcher, R.; Heller, K.; Himmel, A.; Holin, A.; Huang, X.; Hylen, J.; Ilic, J.; Irwin, G. M.; Isvan, Z.; Jaffe, D. E.; James, C.; Jensen, D.; Kafka, T.; Kasahara, S. M. S.; Koizumi, G.; Kopp, S.; Kordosky, M.; Krahn, Z.; Kreymer, A.; Lang, K.; Lefeuvre, G.; Ling, J.; Litchfield, P. J.; Litchfield, R. P.; Loiacono, L.; Lucas, P.; Ma, J.; Mann, W. A.; Marshak, M. L.; Marshall, J. S.; Mayer, N.; McGowan, A. M.; Mehdiyev, R.; Meier, J. R.; Messier, M. D.; Michael, D. G.; Miller, W. H.; Mishra, S. R.; Mitchell, J.; Moore, C. D.; Morfín, J.; Mualem, L.; Mufson, S.; Musser, J.; Naples, D.; Nelson, J. K.; Newman, H. B.; Nichol, R. J.; Ochoa-Ricoux, J. P.; Oliver, W. P.; Orchanian, M.; Ospanov, R.; Paley, J.; Para, A.; Patterson, R. B.; Pawloski, G.; Pearce, G. F.; Petyt, D. A.; Pittam, R.; Plunkett, R. K.; Rameika, R. A.; Raufer, T. M.; Rebel, B.; Rodrigues, P. A.; Rosenfeld, C.; Rubin, H. A.; Ryabov, V. A.; Sanchez, M. C.; Schneps, J.; Schreiner, P.; Shanahan, P.; Smart, W.; Smith, C.; Sousa, A.; Strait, M.; Swain, S.; Tagg, N.; Talaga, R. L.; Thomas, J.; Thomson, M. A.; Tinti, G.; Toner, Ruth; Tzanakos, G.; Urheim, J.; Vahle, P.; Viren, B.; Weber, A.; Webb, R. C.; White, C.; Whitehead, L.; Wojcicki, S. G.; Wright, D. M.; Yang, T.; Zhang, K.; Zois, M.; Zwaska, R.

    This paper reports results from a search for νμ→νe transitions by the MINOS experiment based on a 7×1020 protons-on-target exposure. Our observation of 54 candidate νe events in the far detector with a background of 49.1±7.0(stat)±2.7(syst) events predicted by the measurements in the near detector requires 2sin2(2θ13)sin2θ23<0.12(0.20) at the 90% C.L. for the normal (inverted) mass hierarchy at δCP=0. The experiment sets the tightest limits to date on the value of θ13 for nearly all values of δCP for the normal neutrino mass hierarchy and maximal sin2(2θ23).