Search for Dark Matter Particle Interactions with Electron Final States with DarkSide-50

The Darkside Collaboration; Darren Price; Ellen Sandford

doi:10.1103/PhysRevLett.130.101002

Search for Dark Matter Particle Interactions with Electron Final States with DarkSide-50

The Darkside Collaboration, Darren Price, Ellen Sandford

Research output: Contribution to journal › Letter › peer-review

Abstract

We present a search for dark matter particles with sub-GeV/𝑐2 masses whose interactions have final state electrons using the DarkSide-50 experiment’s (12 306±184) kg d low-radioactivity liquid argon exposure. By analyzing the ionization signals, we exclude new parameter space for the dark matter-electron cross section
¯
𝜎
𝑒, the axioelectric coupling constant 𝑔A⁢𝑒, and the dark photon kinetic mixing parameter 𝜅. We also set the first dark matter direct-detection constraints on the mixing angle |𝑈𝑒⁢4|2 for keV/𝑐2 sterile neutrinos.

Original language	English
Article number	101002
Journal	Physical Review Letters
Volume	130
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevLett.130.101002
Publication status	Published - 6 Mar 2023

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10.1103/PhysRevLett.130.101002

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title = "Search for Dark Matter Particle Interactions with Electron Final States with DarkSide-50",

abstract = "We present a search for dark matter particles with sub-GeV/𝑐2 masses whose interactions have final state electrons using the DarkSide-50 experiment{\textquoteright}s (12 306±184) kg d low-radioactivity liquid argon exposure. By analyzing the ionization signals, we exclude new parameter space for the dark matter-electron cross section¯𝜎𝑒, the axioelectric coupling constant 𝑔A⁢𝑒, and the dark photon kinetic mixing parameter 𝜅. We also set the first dark matter direct-detection constraints on the mixing angle |𝑈𝑒⁢4|2 for keV/𝑐2 sterile neutrinos.",

author = "\{The Darkside Collaboration\} and Darren Price and Ellen Sandford",

year = "2023",

month = mar,

day = "6",

doi = "10.1103/PhysRevLett.130.101002",

language = "English",

volume = "130",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "10",

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TY - JOUR

T1 - Search for Dark Matter Particle Interactions with Electron Final States with DarkSide-50

AU - The Darkside Collaboration

AU - Price, Darren

AU - Sandford, Ellen

PY - 2023/3/6

Y1 - 2023/3/6

N2 - We present a search for dark matter particles with sub-GeV/𝑐2 masses whose interactions have final state electrons using the DarkSide-50 experiment’s (12 306±184) kg d low-radioactivity liquid argon exposure. By analyzing the ionization signals, we exclude new parameter space for the dark matter-electron cross section¯𝜎𝑒, the axioelectric coupling constant 𝑔A⁢𝑒, and the dark photon kinetic mixing parameter 𝜅. We also set the first dark matter direct-detection constraints on the mixing angle |𝑈𝑒⁢4|2 for keV/𝑐2 sterile neutrinos.

AB - We present a search for dark matter particles with sub-GeV/𝑐2 masses whose interactions have final state electrons using the DarkSide-50 experiment’s (12 306±184) kg d low-radioactivity liquid argon exposure. By analyzing the ionization signals, we exclude new parameter space for the dark matter-electron cross section¯𝜎𝑒, the axioelectric coupling constant 𝑔A⁢𝑒, and the dark photon kinetic mixing parameter 𝜅. We also set the first dark matter direct-detection constraints on the mixing angle |𝑈𝑒⁢4|2 for keV/𝑐2 sterile neutrinos.

U2 - 10.1103/PhysRevLett.130.101002

DO - 10.1103/PhysRevLett.130.101002

M3 - Letter

SN - 0031-9007

VL - 130

JO - Physical Review Letters

JF - Physical Review Letters

IS - 10

M1 - 101002

ER -

Search for Dark Matter Particle Interactions with Electron Final States with DarkSide-50

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