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Performance of a silicon photomultiplier module for the ACME III electron EDM search

POSTER

Abstract

A measurement of the electron electric dipole moment (eEDM) is a powerful probe for the existence of physics beyond the Standard Model of particle physics. The ACME experiment searched for the eEDM with the world's highest sensitivity using cold ThO polar molecules (Nature, 562 (2018) 355-360). One of the improvements for the next generation of the ACME experiment is using silicon photomultipliers (SiPMs) as laser-induced fluorescence photon detectors instead of PMTs. We have developed a dedicated SiPM module and evaluated its performance. The SiPM module shows about 2.5 times higher detection efficiency than the PMTs used in the previous ACME measurement. Here we report on the design and performance of the SiPM module.

Presenters

  • Ayami Hiramoto

    Okayama University

Authors

  • Ayami Hiramoto

    Okayama University

  • Daniel G Ang

    Harvard University

  • David DeMille

    University of Chicago, The University of Chicago, University of Chicago & Argonne National Laboratory

  • Collin Diver

    Northwestern University

  • John M Doyle

    Harvard University

  • Gerald Gabrielse

    Northwestern University

  • Zhen Han

    University of Chicago

  • Peiran Hu

    University of Chicago

  • Nick R Hutzler

    Caltech, California Institute of Technology

  • Daniel D Lascar

    Northwestern University

  • Siyuan Liu

    Northwestern University

  • Takahiko Masuda

    Okayama Univ

  • Cole Meisenhelder

    Harvard University

  • John Mitchell

    Northwestern University

  • Cristian D Panda

    UC Berkeley

  • Noboru Sasao

    Okayama University

  • Satoshi Uetake

    Okayama University

  • Maya Watts

    Northwestern University

  • Xing Wu

    Harvard University, University of Chicago

  • Koji Yoshimura

    Okayama University