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arXiv · 2005.12942

An eV-scale sterile neutrino search using eight years of atmospheric muon neutrino data from the IceCube Neutrino Observatory

M. G. Aartsen·R. Abbasi·M. Ackermann·J. Adams·J. A. Aguilar·M. Ahlers·M. Ahrens·C. Alispach·N. M. Amin·K. Andeen·T. Anderson·I. Ansseau·G. Anton·C. Argüelles·J. Auffenberg·S. Axani·H. Bagherpour·X. Bai·A. Balagopal V.·A. Barbano·S. W. Barwick·B. Bastian·V. Basu·V. Baum·S. Baur·R. Bay·J. J. Beatty·K. -H. Becker·J. Becker Tjus·S. BenZvi·D. Berley·E. Bernardini·D. Z. Besson·G. Binder·D. Bindig·E. Blaufuss·S. Blot·C. Bohm·S. Böser·O. Botner·J. Böttcher·E. Bourbeau·J. Bourbeau·F. Bradascio·J. Braun·S. Bron·J. Brostean-Kaiser·A. Burgman·J. Buscher·R. S. Busse·T. Carver·C. Chen·E. Cheung·D. Chirkin·S. Choi·B. A. Clark·K. Clark·L. Classen·A. Coleman·G. H. Collin·J. M. Conrad·P. Coppin·P. Correa·D. F. Cowen·R. Cross·P. Dave·C. De Clercq·J. J. DeLaunay·H. Dembinski·K. Deoskar·S. De Ridder·A. Desai·P. Desiati·K. D. de Vries·G. de Wasseige·M. de With·T. DeYoung·S. Dharani·A. Diaz·J. C. Díaz-Vélez·H. Dujmovic·M. Dunkman·M. A. DuVernois·E. Dvorak·T. Ehrhardt·P. Eller·R. Engel·P. A. Evenson·S. Fahey·A. R. Fazely·A. Fedynitch·J. Felde·A. T. Fienberg·K. Filimonov·C. Finley·D. Fox·A. Franckowiak·E. Friedman·A. Fritz·T. K. Gaisser
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Abstract

The results of a 3+1 sterile neutrino search using eight years of data from the IceCube Neutrino Observatory are presented. A total of 305,735 muon neutrino events are analyzed in reconstructed energy-zenith space to test for signatures of a matter-enhanced oscillation that would occur given a sterile neutrino state with a mass-squared differences between 0.01\,eV$^2$ and 100\,eV$^2$. The best-fit point is found to be at $\sin^2(2\theta_{24})=0.10$ and $\Delta m_{41}^2 = 4.5{\rm eV}^2$, which is consistent with the no sterile neutrino hypothesis with a p-value of 8.0\%.

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M. G. Aartsen, R. Abbasi, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, C. Alispach, N. M. Amin, K. Andeen, T. Anderson, I. Ansseau, G. Anton, C. Argüelles, J. Auffenberg, S. Axani, H. Bagherpour, X. Bai, A. Balagopal V., A. Barbano, S. W. Barwick, B. Bastian, V. Basu, V. Baum, S. Baur, R. Bay, J. J. Beatty, K. -H. Becker, J. Becker Tjus, S. BenZvi, D. Berley, E. Bernardini, D. Z. Besson, G. Binder, D. Bindig, E. Blaufuss, S. Blot, C. Bohm, S. Böser, O. Botner, J. Böttcher, E. Bourbeau, J. Bourbeau, F. Bradascio, J. Braun, S. Bron, J. Brostean-Kaiser, A. Burgman, J. Buscher, R. S. Busse, T. Carver, C. Chen, E. Cheung, D. Chirkin, S. Choi, B. A. Clark, K. Clark, L. Classen, A. Coleman, G. H. Collin, J. M. Conrad, P. Coppin, P. Correa, D. F. Cowen, R. Cross, P. Dave, C. De Clercq, J. J. DeLaunay, H. Dembinski, K. Deoskar, S. De Ridder, A. Desai, P. Desiati, K. D. de Vries, G. de Wasseige, M. de With, T. DeYoung, S. Dharani, A. Diaz, J. C. Díaz-Vélez, H. Dujmovic, M. Dunkman, M. A. DuVernois, E. Dvorak, T. Ehrhardt, P. Eller, R. Engel, P. A. Evenson, S. Fahey, A. R. Fazely, A. Fedynitch, J. Felde, A. T. Fienberg, K. Filimonov, C. Finley, D. Fox, A. Franckowiak, E. Friedman, A. Fritz, T. K. Gaisser. 2020-05-26. An eV-scale sterile neutrino search using eight years of atmospheric muon neutrino data from the IceCube Neutrino Observatory. https://doi.org/10.1103/physrevlett.125.141801

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