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HEP Seminar: The CONNIE Experiment

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Carla Bonifazi, Physics Institute, Federal University of Rio de Janeiro
25 April 2018 from 2:00 PM to 3:00 PM
339 Davey Laboratory
Contact Name
Miguel Mostafa
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The Coherent Neutrino-Nucleus Interaction Experiment (CONNIE) uses fully depleted high-resistivity CCDs (charge coupled devices) as particle detectors with the goal of measuring the Coherent Elastic Neutrino-Nucleus Scattering (CENNS) of reactor antineutrinos with silicon nuclei. The CONNIE detector has been operating since 2014 at a distance of 30 m from the core of the Angra II 3.8 GW nuclear reactor in Brazil. The detector has demonstrated stable operation, low noise of less than 2e- RMS, and low background contamination levels achieved using passive shielding. CENNS provides a test of the Standard Model (SM) and may be a probe of physics beyond the SM. Also, in astrophysics, understanding the coherent interaction is relevant for the energy transport in supernovae and is a limiting factor in ongoing efforts for developing new supernovae models. On the other hand there has been a growing interest in recent years on nuclear reactor monitoring using neutrinos and CCD detectors could make compact/portable detectors. In this talk, the current status of the experiment will be presented together with its performance in the two reactor ON/OFF cycles. We will also discuss the prospects of neutrino detection with CCDs for the upcoming years.