- Art Gallery -

MINOS+ was a continuation of the MINOS experiment (Main injector neutrino oscillation search) to measure neutrino oscillation with improved electronics.[1] It started taking data in 2013 and ran for 3 years. The experiment has ended and a 6-month dismantling project began in early October 2016.[2]

Physics Goals [1]

Measure sin22θ and Δm2 with higher precision.
Measure sin22θ and Δm2 with higher precision.
Study high energy neutrinos
Search for sterile neutrinos
Search for tau neutrinos
Non-standard interactions
Measurement of the neutrino time of flight
Search for extra dimensions
Atmospheric neutrinos

Neutrino Beam

MINOS+ uses the NuMI beamline generated at Fermilab. To produce the beamline, 120 GeV proton pulses from the Main Injector hit a water-cooled graphite target. The resulting interactions of protons with the target material produce pions and kaons, which are focused by a system of magnetic horns. These then travel down a long decay tunnel, and their decay produces a neutrino beam parallel to the meson beam. Most of these are muon neutrinos, with a small electron neutrino contamination. Neutrino interactions in the near detector are used to measure the initial neutrino flux and energy spectrum. Because they are weakly interacting and therefore usually pass through matter, the vast majority of the neutrinos travel through the near detector and the 734 km of rock, then through the far detector and off into space. For the initial 3-year run the NuMI beam will be in its medium energy configuration which will deliver the majority of neutrinos with an energy between 4 GeV and 10 GeV.
Relationship with NOνA

NOνA sits 14 milliradians off the central line of the NuMI beam. At this angle, there is an enhancement of neutrinos with an energy of 2 GeV, at which the L/E (baseline divided by energy) maximizes the oscillation of muon neutrinos. This causes a problem in that the signal you are looking for is a dip in a peak. MINOS+ sits on the central line of the beam so the full beam make up is seen, thus helping control systematic errors for the NuMI beam energy.
References

Tzanankos, G.; et al. (MINOS+ Collaboration) (13 May 2011). "MINOS+: a Proposal to FNAL to run MINOS with the medium energy NuMI beam" (PDF). FERMILAB-PROPOSAL-1016.

Riebe, Angie (25 October 2016). "'A Pretty Cool Experience': Lakehead removing neutrino lab from Soudan Underground Mine". Mesabi Daily News.

vte

Neutrino detectors, experiments, and facilities
Discoveries

Cowan–Reines ( ν e) Lederman–Schwartz–Steinberger ( ν μ) DONUT ( ν τ) Neutrino oscillation SN 1987 neutrino burst

Operating
(divided by
primary
neutrino
source)
Astronomical

ANITA ANTARES ASD BDUNT Borexino BUST HALO IceCube LVD NEVOD SAGE Super-Kamiokande SNEWS

Reactor

Daya Bay Double Chooz KamLAND RENO STEREO

Accelerator

ANNIE ICARUS (Fermilab) MicroBooNE MINERνA MiniBooNE NA61/SHINE NOνA NuMI T2K

0νββ

AMoRE COBRA CUORE EXO GERDA KamLAND-Zen MAJORANA NEXT PandaX SNO+ XMASS

Other

KATRIN WITCH

Construction

ARA ARIANNA Baikal-GVD BEST DUNE Hyper-Kamiokande JUNO KM3NeT SuperNEMO FASERν

Retired

AMANDA CDHS Chooz CNGS Cuoricino DONUT ERPM GALLEX Gargamelle GNO Heidelberg-Moscow Homestake ICARUS IGEX IMB K2K Kamiokande KARMEN KGF LSND MACRO MINOS MINOS+ NARC NEMO OPERA RICE SciBooNE SNO Soudan 2 Utah

Proposed

CUPID GRAND INO LAGUNA LEGEND LENA Neutrino Factory nEXO Nucifer SBND UNO JEM-EUSO WATCHMAN

Cancelled

DUMAND Project Long Baseline Neutrino Experiment NEMO Project NESTOR Project SOX BOREX

See also

BNO (Baksan or Baxan Neutrino Observatory) Kamioka Observatory LNGS SNOLAB List of neutrino experiments

Physics Encyclopedia

World

Index

Hellenica World - Scientific Library

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