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arXiv · 1709.07079

Search for Nonstandard Neutrino Interactions with IceCube DeepCore

IceCube Collaboration·M. G. Aartsen·M. Ackermann·J. Adams·J. A. Aguilar·M. Ahlers·M. Ahrens·I. Al Samarai·D. Altmann·K. Andeen·T. Anderson·I. Ansseau·G. Anton·C. Argüelles·J. Auffenberg·S. Axani·H. Bagherpour·X. Bai·J. P. Barron·S. W. Barwick·V. Baum·R. Bay·J. J. Beatty·J. Becker Tjus·K. -H. Becker·S. BenZvi·D. Berley·E. Bernardini·D. Z. Besson·G. Binder·D. Bindig·E. Blaufuss·S. Blot·C. Bohm·M. Börner·F. Bos·D. Bose·S. Böser·O. Botner·E. Bourbeau·J. Bourbeau·F. Bradascio·J. Braun·L. Brayeur·M. Brenzke·H. -P. Bretz·S. Bron·J. Brostean-Kaiser·A. Burgman·T. Carver·J. Casey·M. Casier·E. Cheung·D. Chirkin·A. Christov·K. Clark·L. Classen·S. Coenders·G. H. Collin·J. M. Conrad·D. F. Cowen·R. Cross·M. Day·J. P. A. M. de André·C. De Clercq·J. J. DeLaunay·H. Dembinski·S. De Ridder·P. Desiati·K. D. de Vries·G. de Wasseige·M. de With·T. DeYoung·J. C. Díaz-Vélez·V. di Lorenzo·H. Dujmovic·J. P. Dumm·M. Dunkman·E. Dvorak·B. Eberhardt·T. Ehrhardt·B. Eichmann·P. Eller·P. A. Evenson·S. Fahey·A. R. Fazely·J. Felde·K. Filimonov·C. Finley·S. Flis·A. Franckowiak·E. Friedman·T. Fuchs·T. K. Gaisser·J. Gallagher·L. Gerhardt·K. Ghorbani·W. Giang·T. Glauch·T. Glüsenkamp
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Abstract

As atmospheric neutrinos propagate through the Earth, vacuum-like oscillations are modified by Standard-Model neutral- and charged-current interactions with electrons. Theories beyond the Standard Model introduce heavy, TeV-scale bosons that can produce nonstandard neutrino interactions. These additional interactions may modify the Standard Model matter effect producing a measurable deviation from the prediction for atmospheric neutrino oscillations. The result described in this paper constrains nonstandard interaction parameters, building upon a previous analysis of atmospheric muon-neutrino disappearance with three years of IceCube-DeepCore data. The best fit for the muon to tau flavor changing term is $\epsilon_{\mu \tau}=-0.0005$, with a 90\% C.L. allowed range of $-0.0067 <\epsilon_{\mu \tau}< 0.0081$. This result is more restrictive than recent limits from other experiments for $\epsilon_{\mu \tau}$. Furthermore, our result is complementary to a recent constraint on $\epsilon_{\mu \tau}$ using another publicly available IceCube high-energy event selection. Together, they constitute the world's best limits on nonstandard interactions in the $\mu-\tau$ sector.

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IceCube Collaboration, M. G. Aartsen, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, I. Al Samarai, D. Altmann, K. Andeen, T. Anderson, I. Ansseau, G. Anton, C. Argüelles, J. Auffenberg, S. Axani, H. Bagherpour, X. Bai, J. P. Barron, S. W. Barwick, V. Baum, R. Bay, J. J. Beatty, J. Becker Tjus, K. -H. Becker, S. BenZvi, D. Berley, E. Bernardini, D. Z. Besson, G. Binder, D. Bindig, E. Blaufuss, S. Blot, C. Bohm, M. Börner, F. Bos, D. Bose, S. Böser, O. Botner, E. Bourbeau, J. Bourbeau, F. Bradascio, J. Braun, L. Brayeur, M. Brenzke, H. -P. Bretz, S. Bron, J. Brostean-Kaiser, A. Burgman, T. Carver, J. Casey, M. Casier, E. Cheung, D. Chirkin, A. Christov, K. Clark, L. Classen, S. Coenders, G. H. Collin, J. M. Conrad, D. F. Cowen, R. Cross, M. Day, J. P. A. M. de André, C. De Clercq, J. J. DeLaunay, H. Dembinski, S. De Ridder, P. Desiati, K. D. de Vries, G. de Wasseige, M. de With, T. DeYoung, J. C. Díaz-Vélez, V. di Lorenzo, H. Dujmovic, J. P. Dumm, M. Dunkman, E. Dvorak, B. Eberhardt, T. Ehrhardt, B. Eichmann, P. Eller, P. A. Evenson, S. Fahey, A. R. Fazely, J. Felde, K. Filimonov, C. Finley, S. Flis, A. Franckowiak, E. Friedman, T. Fuchs, T. K. Gaisser, J. Gallagher, L. Gerhardt, K. Ghorbani, W. Giang, T. Glauch, T. Glüsenkamp. 2017-09-20. Search for Nonstandard Neutrino Interactions with IceCube DeepCore. https://doi.org/10.1103/physrevd.97.072009

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