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