Constraints on Sub-GeV Dark-Matter-Electron Scattering from the DarkSide-50 Experiment

The DarkSide Collaboration

doi:10.1103/PhysRevLett.121.111303

Constraints on Sub-GeV Dark-Matter-Electron Scattering from the DarkSide-50 Experiment

The DarkSide Collaboration

Research output: Contribution to journal › Article

47 Scopus citations

Abstract

We present new constraints on sub-GeV dark-matter particles scattering off electrons based on 6780.0 kg d of data collected with the DarkSide-50 dual-phase argon time projection chamber. This analysis uses electroluminescence signals due to ionized electrons extracted from the liquid argon target. The detector has a very high trigger probability for these signals, allowing for an analysis threshold of three extracted electrons, or approximately 0.05 keVee. We calculate the expected recoil spectra for dark matter-electron scattering in argon and, under the assumption of momentum-independent scattering, improve upon existing limits from XENON10 for dark-matter particles with masses between 30 and 100 MeV/c2.

Original language	English (US)
Article number	111303
Journal	Physical review letters
Volume	121
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevLett.121.111303
State	Published - Sep 12 2018

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All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

Cite this

The DarkSide Collaboration (2018). Constraints on Sub-GeV Dark-Matter-Electron Scattering from the DarkSide-50 Experiment. Physical review letters, 121(11), [111303]. https://doi.org/10.1103/PhysRevLett.121.111303

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title = "Constraints on Sub-GeV Dark-Matter-Electron Scattering from the DarkSide-50 Experiment",

abstract = "We present new constraints on sub-GeV dark-matter particles scattering off electrons based on 6780.0 kg d of data collected with the DarkSide-50 dual-phase argon time projection chamber. This analysis uses electroluminescence signals due to ionized electrons extracted from the liquid argon target. The detector has a very high trigger probability for these signals, allowing for an analysis threshold of three extracted electrons, or approximately 0.05 keVee. We calculate the expected recoil spectra for dark matter-electron scattering in argon and, under the assumption of momentum-independent scattering, improve upon existing limits from XENON10 for dark-matter particles with masses between 30 and 100 MeV/c2.",

author = "{The DarkSide Collaboration} and P. Agnes and Albuquerque, {I. F.M.} and T. Alexander and Alton, {A. K.} and Araujo, {G. R.} and Asner, {D. M.} and M. Ave and Back, {H. O.} and B. Baldin and G. Batignani and K. Biery and V. Bocci and G. Bonfini and W. Bonivento and B. Bottino and F. Budano and S. Bussino and M. Cadeddu and M. Cadoni and F. Calaprice and A. Caminata and N. Canci and A. Candela and M. Caravati and M. Cariello and M. Carlini and M. Carpinelli and S. Catalanotti and V. Cataudella and P. Cavalcante and S. Cavuoti and R. Cereseto and A. Chepurnov and C. Cical{\`o} and L. Cifarelli and Cocco, {A. G.} and G. Covone and D. D'Angelo and M. D'Incecco and D. D'Urso and S. Davini and {De Candia}, A. and {De Cecco}, S. and {De Deo}, M. and {De Filippis}, G. and {De Rosa}, G. and {De Vincenzi}, M. and P. Demontis and Derbin, {A. V.} and A. Devoto",

year = "2018",

month = sep,

day = "12",

doi = "10.1103/PhysRevLett.121.111303",

language = "English (US)",

volume = "121",

journal = "Physical Review Letters",

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T1 - Constraints on Sub-GeV Dark-Matter-Electron Scattering from the DarkSide-50 Experiment

AU - The DarkSide Collaboration

AU - Agnes, P.

AU - Albuquerque, I. F.M.

AU - Alexander, T.

AU - Alton, A. K.

AU - Araujo, G. R.

AU - Asner, D. M.

AU - Ave, M.

AU - Back, H. O.

AU - Baldin, B.

AU - Batignani, G.

AU - Biery, K.

AU - Bocci, V.

AU - Bonfini, G.

AU - Bonivento, W.

AU - Bottino, B.

AU - Budano, F.

AU - Bussino, S.

AU - Cadeddu, M.

AU - Cadoni, M.

AU - Calaprice, F.

AU - Caminata, A.

AU - Canci, N.

AU - Candela, A.

AU - Caravati, M.

AU - Cariello, M.

AU - Carlini, M.

AU - Carpinelli, M.

AU - Catalanotti, S.

AU - Cataudella, V.

AU - Cavalcante, P.

AU - Cavuoti, S.

AU - Cereseto, R.

AU - Chepurnov, A.

AU - Cicalò, C.

AU - Cifarelli, L.

AU - Cocco, A. G.

AU - Covone, G.

AU - D'Angelo, D.

AU - D'Incecco, M.

AU - D'Urso, D.

AU - Davini, S.

AU - De Candia, A.

AU - De Cecco, S.

AU - De Deo, M.

AU - De Filippis, G.

AU - De Rosa, G.

AU - De Vincenzi, M.

AU - Demontis, P.

AU - Derbin, A. V.

AU - Devoto, A.

PY - 2018/9/12

Y1 - 2018/9/12

N2 - We present new constraints on sub-GeV dark-matter particles scattering off electrons based on 6780.0 kg d of data collected with the DarkSide-50 dual-phase argon time projection chamber. This analysis uses electroluminescence signals due to ionized electrons extracted from the liquid argon target. The detector has a very high trigger probability for these signals, allowing for an analysis threshold of three extracted electrons, or approximately 0.05 keVee. We calculate the expected recoil spectra for dark matter-electron scattering in argon and, under the assumption of momentum-independent scattering, improve upon existing limits from XENON10 for dark-matter particles with masses between 30 and 100 MeV/c2.

AB - We present new constraints on sub-GeV dark-matter particles scattering off electrons based on 6780.0 kg d of data collected with the DarkSide-50 dual-phase argon time projection chamber. This analysis uses electroluminescence signals due to ionized electrons extracted from the liquid argon target. The detector has a very high trigger probability for these signals, allowing for an analysis threshold of three extracted electrons, or approximately 0.05 keVee. We calculate the expected recoil spectra for dark matter-electron scattering in argon and, under the assumption of momentum-independent scattering, improve upon existing limits from XENON10 for dark-matter particles with masses between 30 and 100 MeV/c2.

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U2 - 10.1103/PhysRevLett.121.111303

DO - 10.1103/PhysRevLett.121.111303

M3 - Article

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AN - SCOPUS:85053343618

VL - 121

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 11

M1 - 111303

ER -

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10.1103/PhysRevLett.121.111303