Author:
Sanfilippo S,Agnes P,Ahmad I,Albergo S,Albuquerque I,Ave M,Bonivento W M,Bottino B,Cadeddu M,Caminata A,Canci N,Cappello G,Caravati M,Cataudella V,Cesarano R,Cicalò C,Covone G,Candia A de,Filippis G De,Rosa G De,Davini S,Dionisi C,Dolganov G,Fiorillo G,Franco D,Galbiati C,Gulino M,Ippolito V,Kemmerich N,Kimura M,Kuss M,Commara M La,Li X,Mari S M,Martoff C J,Matteucci G,Oleynikov V,Pallavicini M,Pandola L,Pino N,Rescigno M,Rode J,Sosa A,Suvorov Y,Testera G,Tricomi A,Wada M,Wang H,Wang Y,Zakhary P
Abstract
Abstract
Directional sensitivity to nuclear recoils would provide a smoking gun for a possible discovery of dark matter in the form of WIMPs (Weakly Interacting Massive Particles). A hint of directional dependence of the response of a dual-phase argon Time Projection Chamber (TPC) was found in the SCENE experiment. Given the potential importance of such a capability in the framework of dark matter searches, a new dedicated experiment, ReD (Recoil Directionality), was designed by the Global Argon Dark Matter Collaboration, in order to scrutinise this hint. A small dual-phase argon TPC was irradiated with neutrons produced by the p(7Li,7Be)n reaction using the 15 MV TANDEM accelerator of the INFN - Laboratori Nazionali del Sud, Catania, Italy, so as to produce argon nuclear recoils in the range (20 - 100) keV of interest for dark matter searches. Energy and direction of nuclear recoils are inferred by the detection of the elastically-scattered neutron by a set of scintillation detectors. Events were selected by gating of the associated 7Be, which is detected by a telescope of Si detectors.
Subject
Computer Science Applications,History,Education