Accelerator Neutrinos

Neutrinos are some of the most abundant particles of the universe, but relatively little is known about them. The fact that they are massive particles, unexpectedly discovered via neutrino oscillation, has changed the way we think about neutrinos. Studying the poorly understood properties of neutrinos could answer many of the great mysteries of physics. Neutrinos could be key to answer the long lasting question of the asymmetry in the Univers between matter and anti-matter. If it is found that they violate charge-parity conservation, neutrinos would be the stepping-stone to the explanation of the Universe imbalance. Many more puzzles also need to be address, such as what is the mass ordering of the three neutrino mass states and what is the precise value of the oscillation parameters. Neutrino oscillation experiments will provide the perfect environment to study these properties and the Oxford group is playing an active role in some of those.

The Group is currently involved in the T2K experiments, a long-baseline neutrino experiment that made the first observation of electron-neutrino appearance in 2011. This experiment, located in Japan, is used to study neutrino oscillation as well as neutrino interactions.

While analysing data from the T2K experiment, the Group is already working towards the next generation of experiments that will push even further the limit of our understanding if neutrinos. The DUNE project in the US is a planned experiment that will send neutrinos 1300 km away to a very large scale Liquid Argon detector to study neutrino oscillation with unprecedented sensitivity. The HyperK project is a proposed oscillation experiment in Japan that will have great sensitivity to CP violation. The Group is currently working on both these projects.

In parallel to the projects described above, some Group members are also involved in MicroBooNE, a short-baseline neutrino experiment dedicated to address the low-energy excess observed by the previous MiniBooNE experiment and on SBND, a near detector to MicroBOoNE currently under construction. Others are working on the SoLid experiment, a detector used to study reactor neutrinos and to address the reactor anomaly.

Research groups in this theme

MINOS / MINOS+ (finished)

The Main Injection Neutrino Oscillation Search

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Short baseline Oscillation search with Lithium-6 Detector

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Tokai-to-Kamioka Neutrino Oscillation Experiment

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