MINOS+: Running the MINOS Detectors in the Numi-NOvA Beam (FNAL P-1016) Presented by Alexander Radovic of University College London on behalf of the MINOS Collaboration. The Proposal: The Physics Reach: By continuing to the run the MINOS detectors during the NOvA Era Not only could MINOS+ augment the sin22ϴ and Δm2 we would hope to not only help NOvA improve on its measurement measurements of NOvA, it could also represent an opportunity of the oscillation parameters but also to probe new and interesting to probe some interesting areas of new physics. Such as: areas of physics, as well as improve our understanding of the neutrino beam flux. The Study of High Energy Neutrinos. Until now most neutrino oscillation experiments have focused on the lower The diagram on the right energies where the PMNS scenario tells us oscillations will shows the approximate occur. The MINOS detectors however would see the high energy regime that the MINOS energy tail of the NOvA beam, allowing for investigation MINOS detectors will be beyond the PMNS model of oscillations. sensitive to. Clearly very different to the spectrum The Search for seen at the NOvA Sterile Neutrinos. detectors it would give a NOvA The MINOS detectors window into a completely will see a large νμ flux different physical domain. from the NOvA beam which is perfect for With the MINOS detectors searching for a sterile we have a unique neutrino with opportunity to secure 2 2 2 m 4-m 3=O(1eV ) as Fermilab's position as a it would cause the world leader in Neutrino disappearance of research. neutrinos at the MINOS far detector at 2 2 higher energies. Measurement of sin 2ϴ23, Δm23 , 2 2 sin 2ϴ23, and Δm23 : The plots to the right show the MINOS+ By combining data from our detectors with that from NOvA we : sensitivity to ϴ24 after could continue to improve the high precision measurements of two years of neutrino 2 2 sin 2ϴ and Δm . Whilst overall the improvement will be modest, (top) or antineutrino in the first year or two of NOvA running- when the full fiducial (bottom) mode. The volume is being installed- the improvement is substantial. green region is our exclusion region, the limits of other νμ disappearance experiments are also shown. The plots below show how MINOS might contribute in the first year of the NOvA Beam. The left plot shows the reach for the the The Search for Tau Neutrinos. We expect ~87 of ~1636 NC neutrino parameters, and the right antienutrinos. They were made events seen by MINOS+ every year to be vτ. There is hope with the assumption that the NOvA fiducial volume would be 50% that with better kinematic cuts we could isolate those events. complete on the first day of operation and 100% on day 365. Non-Standard Interactions. There are some predicted differences between neutrino and antineutrino MINOS excluded oscillation that could be probed by further neutrino/ antineutrino comparisons.

Year 1 νμ YearYear 1 ν μ3 The plot on the right by MINOS+ excluded Kopp, Machado and Parke (Phys.Rev.D82:113002) 2 2 The plots below show the estimated progression of sin 2ϴ and Δm , shows the improvement with T2K values based on present sensitivities with 3e19 POT and that can be made on the an estimated 3e20 POT collected by the start of MINOS+ running. exclusion of their non standard interaction probability. From the current best case exclusion made using MINOS data in blue, to a projected exclusion from two years of MINOS+ in red.

Measurement of the νμ Time of Flight. MINOS+ would also provide an opportunity to make a measurement of the -7 muon neutrino speed to the level of |vν/c -1|<5e .