Publications associated with Neutrinos

Improved constraints on sterile neutrino mixing from disappearance searches in the MINOS, MINOS+, Daya Bay, and Bugey-3 experiments

Physical Review Letters American Physical Society 125 (2020) 71801

F An, I Anghel, A Balantekin, G Barr, M Bishai, G Cao, J Cao, S Cao, C Castromonte, R Chen, Z Cheng, J Cherwinka, S Childress, M Chu, J Coelho, J Cummings, N Dash, F Deng, Y Ding, D Dolzhikov, J Dove, J Gallo, M Gonchar, G Gong, A Weber

Searches for electron antineutrino, muon neutrino, and muon antineutrino disappearance driven by sterile neutrino mixing have been carried out by the Daya Bay and MINOS+ collaborations. This Letter presents the combined results of these searches, along with exclusion results from the Bugey-3 reactor experiment, framed in a minimally extended four-neutrino scenario. Significantly improved constraints on the θ_{μe} mixing angle are derived that constitute the most constraining limits to date over five orders of magnitude in the mass-squared splitting Δm_{41}^{2}, excluding the 90% C.L. sterile-neutrino parameter space allowed by the LSND and MiniBooNE observations at 90% CL_{s} for Δm_{41}^{2}<13  eV^{2}. Furthermore, the LSND and MiniBooNE 99% C.L. allowed regions are excluded at 99% CL_{s} for Δm_{41}^{2}<1.6 eV^{2}.

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