• Open Access

Earth shielding and daily modulation from electrophilic boosted dark particles

Yifan Chen, Bartosz Fornal, Pearl Sandick, Jing Shu, Xiao Xue, Yue Zhao, and Junchao Zong
Phys. Rev. D 107, 033006 – Published 21 February 2023

Abstract

Boosted dark particles of astrophysical origin can lead to nonstandard nuclear or electron recoil signals in direct detection experiments. We conduct an investigation of the daily modulation feature of a potential future signal of this type. In particular, we perform simulations of the dark particle interactions with electrons in atoms building up the Earth on its path to the detector and provide in-depth predictions for the expected daily changes in the signal for various direct detection experiments, including XENONnT, PandaX, and LUX-ZEPLIN.

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  • Received 26 July 2022
  • Accepted 27 January 2023

DOI:https://doi.org/10.1103/PhysRevD.107.033006

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Particles & Fields

Authors & Affiliations

Yifan Chen1,2,*, Bartosz Fornal3,†, Pearl Sandick4,‡, Jing Shu2,5,6,7,§, Xiao Xue8,9,∥, Yue Zhao4,¶, and Junchao Zong10,2,**

  • 1Niels Bohr International Academy, Niels Bohr Institute, Blegdamsvej 17, 2100 Copenhagen, Denmark
  • 2CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China
  • 3Department of Chemistry and Physics, Barry University, Miami Shores, Florida 33161, USA
  • 4Department of Physics and Astronomy, University of Utah, Salt Lake City, Utah 84112, USA
  • 5School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
  • 6School of Fundamental Physics and Mathematical Sciences, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
  • 7International Center for Theoretical Physics Asia-Pacific, Beijing/Hangzhou, China
  • 8II. Institute of Theoretical Physics, Universität Hamburg, 22761 Hamburg, Germany
  • 9Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
  • 10Department of Physics, Nanjing University, Nanjing 210093, China

  • *yifan.chen@nbi.ku.dk
  • bfornal@barry.edu
  • sandick@physics.utah.edu
  • §jshu@pku.edu.cn
  • xiao.xue@desy.de
  • zhaoyue@physics.utah.edu
  • **jczong@smail.nju.edu.cn

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Issue

Vol. 107, Iss. 3 — 1 February 2023

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