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Neutrino Physics with an Opaque Detector

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arxiv 1908.02859 v2 pith:D2Q2X33P submitted 2019-08-07 physics.ins-det hep-ex

Neutrino Physics with an Opaque Detector

classification physics.ins-det hep-ex
keywords neutrinodetectoropaquescintillatorconceptlightphysicsacross
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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In 1956 Reines & Cowan discovered the neutrino using a liquid scintillator detector. The neutrinos interacted with the scintillator, producing light that propagated across transparent volumes to surrounding photo-sensors. This approach has remained one of the most widespread and successful neutrino detection technologies used since. This article introduces a concept that breaks with the conventional paradigm of transparency by confining and collecting light near its creation point with an opaque scintillator and a dense array of optical fibres. This technique, called LiquidO, can provide high-resolution imaging to enable efficient identification of individual particles event-by-event. A natural affinity for adding dopants at high concentrations is provided by the use of an opaque medium. With these and other capabilities, the potential of our detector concept to unlock opportunities in neutrino physics is presented here, alongside the results of the first experimental validation.

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