Light dark matter constraints from SuperCDMS HVeV detectors operated underground with an anticoincidence event selection

Document Type

Article

Source of Publication

Physical Review D

Publication Date

1-1-2025

Abstract

This article presents constraints on dark-matter-electron interactions obtained from the first underground data-taking campaign with multiple SuperCDMS HVeV detectors operated in the same housing. An exposure of 7.63 g-days is used to set upper limits on the dark-matter-electron scattering cross section for dark matter masses between 0.5 and 1000 MeV/c2, as well as upper limits on dark photon kinetic mixing and axionlike particle axioelectric coupling for masses between 1.2 and 23.3 eV/c2. Compared to an earlier HVeV search, sensitivity was improved as a result of an increased overburden of 225 meters of water equivalent, an anticoincidence event selection, and better pile-up rejection. In the case of dark-matter-electron scattering via a heavy mediator, an improvement by up to a factor of 25 in cross section sensitivity was achieved.

ISSN

2470-0010

Publisher

American Physical Society (APS)

Volume

111

Issue

1

Disciplines

Physical Sciences and Mathematics

Keywords

dark matter, electron interactions, SuperCDMS HVeV, anticoincidence, scattering cross section

Scopus ID

85215273420

Indexed in Scopus

yes

Open Access

yes

Open Access Type

Green: A manuscript of this publication is openly available in a repository

Share

COinS