Application of Cryogenic TES based Light Detectors for CUPID

ORAL

Abstract

The Cryogenic Underground Observatory for Rare Events (CUORE) is a search for lepton number violating new physics currently operating at the Laboratori Nazionali del Gran Sasso (LNGS). CUORE monitors 988 TeO2 crystals (742 kg) for neutrinoless double beta decay (0νββ) by operating these crystals as cryogenic bolometers using neutron-transmutation doped (NTD) Ge thermistors. CUORE is expected to achieve a sensitivity to the 130Te 0νββ decay half-life of T1/2 = 9 x 1025 years (90% C.L.) after 5 years of operation, and has already met the expected background goals of approximately 1 cnt/keV/kg/yr. In order to further improve upon the background the CUORE Upgrade with Particle ID (CUPID) program will introduce improved radiopurity screening, enhanced target masses, and use a two channel energy collection approach (light and heat). This will allow for event by event discrimination of α and β events, enhancing the ability to reject background. In this talk I will discuss how the current R&D at LBNL and UC Berkeley with low-Tc transition edge sensors (TES) with SQUID based light detectors presents a suitable technology to meet CUPID design goals, and how such devices might be realized in the CUPID experiment.

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Presenters

  • B C Welliver

    Lawrence Berkeley Natl Lab, Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, United States

Authors

  • B C Welliver

    Lawrence Berkeley Natl Lab, Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, United States

  • V Singh

    Univ of California - Berkeley, Physics, University of California, Berkeley, CA, United States

  • G Benato

    Univ of California - Berkeley, Physics, University of California, Berkeley, CA, United States

  • C L Chang

    High Energy Physics Division, Argonne National Laboratory, Chicago, IL, United States

  • J Ding

    Materials Science Division, Argonne National Laboratory, Chicago, IL, United States

  • Alexey Drobizhev

    Nuclear Science Division, Lawrence Berkeley National Laboratory, Physics, University of California, Berkeley, Berkeley, CA, United States, Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, United States, Lawrence Berkeley Natl Lab

  • B K Fujikawa

    Lawrence Berkeley Natl Lab, Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, United States

  • R Hennings-Yeomans

    Univ of California - Berkeley, Physics, University of California, Berkeley, CA, United States

  • G Karapetrov

    Department of Physics, Drexel University, Philadelphia, PA, United States

  • Y G Kolomensky

    Univ of California - Berkeley, Physics, University of California, Berkeley, CA, United States

  • L Marini

    Physics, University of California, Berkeley, CA, United States

  • V Novosad

    Materials Science Division, Argonne National Laboratory, Chicago, IL, United States

  • J Pearson

    Materials Science Division, Argonne National Laboratory, Chicago, IL, United States

  • T Polakovic

    Department of Physics, Drexel University, Philadelphia, PA, United States

  • B E L Schmidt

    Lawrence Berkeley National Laboratory, Lawrence Berkeley Natl Lab, Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, United States

  • S Wagaarachchi

    Univ of California - Berkeley, Physics, University of California, Berkeley, CA, United States

  • G Wang

    High Energy Physics Division, Argonne National Laboratory, Chicago, IL, United States

  • V G Yefremenko

    High Energy Physics Division, Argonne National Laboratory, Chicago, IL, United States

  • B J Sheff

    Univ of California - Berkeley, Physics, University of California, Berkeley, CA, United States