Results of a Search for Sub-GeV Dark Matter Using 2013 LUX Data

(LUX Collaboration)

doi:10.1103/PhysRevLett.122.131301

Results of a Search for Sub-GeV Dark Matter Using 2013 LUX Data

(LUX Collaboration)

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

51 Scopus citations

Abstract

The scattering of dark matter (DM) particles with sub-GeV masses off nuclei is difficult to detect using liquid xenon-based DM search instruments because the energy transfer during nuclear recoils is smaller than the typical detector threshold. However, the tree-level DM-nucleus scattering diagram can be accompanied by simultaneous emission of a bremsstrahlung photon or a so-called "Migdal" electron. These provide an electron recoil component to the experimental signature at higher energies than the corresponding nuclear recoil. The presence of this signature allows liquid xenon detectors to use both the scintillation and the ionization signals in the analysis where the nuclear recoil signal would not be otherwise visible. We report constraints on spin-independent DM-nucleon scattering for DM particles with masses of 0.4-5 GeV/c2 using 1.4×104 kg day of search exposure from the 2013 data from the Large Underground Xenon (LUX) experiment for four different classes of mediators. This analysis extends the reach of liquid xenon-based DM search instruments to lower DM masses than has been achieved previously.

Original language	English (US)
Article number	131301
Journal	Physical review letters
Volume	122
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevLett.122.131301
State	Published - Apr 1 2019

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1103/PhysRevLett.122.131301

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@article{d899351013f848f88c7224bda407e175,

title = "Results of a Search for Sub-GeV Dark Matter Using 2013 LUX Data",

abstract = "The scattering of dark matter (DM) particles with sub-GeV masses off nuclei is difficult to detect using liquid xenon-based DM search instruments because the energy transfer during nuclear recoils is smaller than the typical detector threshold. However, the tree-level DM-nucleus scattering diagram can be accompanied by simultaneous emission of a bremsstrahlung photon or a so-called {"}Migdal{"} electron. These provide an electron recoil component to the experimental signature at higher energies than the corresponding nuclear recoil. The presence of this signature allows liquid xenon detectors to use both the scintillation and the ionization signals in the analysis where the nuclear recoil signal would not be otherwise visible. We report constraints on spin-independent DM-nucleon scattering for DM particles with masses of 0.4-5 GeV/c2 using 1.4×104 kg day of search exposure from the 2013 data from the Large Underground Xenon (LUX) experiment for four different classes of mediators. This analysis extends the reach of liquid xenon-based DM search instruments to lower DM masses than has been achieved previously.",

author = "{(LUX Collaboration)} and Akerib, {D. S.} and S. Alsum and Ara{\'u}jo, {H. M.} and X. Bai and J. Balajthy and P. Beltrame and Bernard, {E. P.} and A. Bernstein and Biesiadzinski, {T. P.} and Boulton, {E. M.} and B. Boxer and P. Br{\'a}s and S. Burdin and D. Byram and Carmona-Benitez, {M. C.} and C. Chan and Cutter, {J. E.} and Davison, {T. J.R.} and E. Druszkiewicz and Fallon, {S. R.} and A. Fan and S. Fiorucci and Gaitskell, {R. J.} and J. Genovesi and C. Ghag and Gilchriese, {M. G.D.} and C. Gwilliam and Hall, {C. R.} and Haselschwardt, {S. J.} and Hertel, {S. A.} and Hogan, {D. P.} and M. Horn and Huang, {D. Q.} and Ignarra, {C. M.} and Jacobsen, {R. G.} and O. Jahangir and W. Ji and K. Kamdin and K. Kazkaz and D. Khaitan and R. Knoche and Korolkova, {E. V.} and S. Kravitz and Kudryavtsev, {V. A.} and Lenardo, {B. G.} and Lesko, {K. T.} and J. Liao and J. Lin and A. Lindote and Lopes, {M. I.}",

note = "Publisher Copyright: {\textcopyright} 2019 American Physical Society.",

year = "2019",

month = apr,

day = "1",

doi = "10.1103/PhysRevLett.122.131301",

language = "English (US)",

volume = "122",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "13",

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TY - JOUR

T1 - Results of a Search for Sub-GeV Dark Matter Using 2013 LUX Data

AU - (LUX Collaboration)

AU - Akerib, D. S.

AU - Alsum, S.

AU - Araújo, H. M.

AU - Bai, X.

AU - Balajthy, J.

AU - Beltrame, P.

AU - Bernard, E. P.

AU - Bernstein, A.

AU - Biesiadzinski, T. P.

AU - Boulton, E. M.

AU - Boxer, B.

AU - Brás, P.

AU - Burdin, S.

AU - Byram, D.

AU - Carmona-Benitez, M. C.

AU - Chan, C.

AU - Cutter, J. E.

AU - Davison, T. J.R.

AU - Druszkiewicz, E.

AU - Fallon, S. R.

AU - Fan, A.

AU - Fiorucci, S.

AU - Gaitskell, R. J.

AU - Genovesi, J.

AU - Ghag, C.

AU - Gilchriese, M. G.D.

AU - Gwilliam, C.

AU - Hall, C. R.

AU - Haselschwardt, S. J.

AU - Hertel, S. A.

AU - Hogan, D. P.

AU - Horn, M.

AU - Huang, D. Q.

AU - Ignarra, C. M.

AU - Jacobsen, R. G.

AU - Jahangir, O.

AU - Ji, W.

AU - Kamdin, K.

AU - Kazkaz, K.

AU - Khaitan, D.

AU - Knoche, R.

AU - Korolkova, E. V.

AU - Kravitz, S.

AU - Kudryavtsev, V. A.

AU - Lenardo, B. G.

AU - Lesko, K. T.

AU - Liao, J.

AU - Lin, J.

AU - Lindote, A.

AU - Lopes, M. I.

PY - 2019/4/1

Y1 - 2019/4/1

N2 - The scattering of dark matter (DM) particles with sub-GeV masses off nuclei is difficult to detect using liquid xenon-based DM search instruments because the energy transfer during nuclear recoils is smaller than the typical detector threshold. However, the tree-level DM-nucleus scattering diagram can be accompanied by simultaneous emission of a bremsstrahlung photon or a so-called "Migdal" electron. These provide an electron recoil component to the experimental signature at higher energies than the corresponding nuclear recoil. The presence of this signature allows liquid xenon detectors to use both the scintillation and the ionization signals in the analysis where the nuclear recoil signal would not be otherwise visible. We report constraints on spin-independent DM-nucleon scattering for DM particles with masses of 0.4-5 GeV/c2 using 1.4×104 kg day of search exposure from the 2013 data from the Large Underground Xenon (LUX) experiment for four different classes of mediators. This analysis extends the reach of liquid xenon-based DM search instruments to lower DM masses than has been achieved previously.

AB - The scattering of dark matter (DM) particles with sub-GeV masses off nuclei is difficult to detect using liquid xenon-based DM search instruments because the energy transfer during nuclear recoils is smaller than the typical detector threshold. However, the tree-level DM-nucleus scattering diagram can be accompanied by simultaneous emission of a bremsstrahlung photon or a so-called "Migdal" electron. These provide an electron recoil component to the experimental signature at higher energies than the corresponding nuclear recoil. The presence of this signature allows liquid xenon detectors to use both the scintillation and the ionization signals in the analysis where the nuclear recoil signal would not be otherwise visible. We report constraints on spin-independent DM-nucleon scattering for DM particles with masses of 0.4-5 GeV/c2 using 1.4×104 kg day of search exposure from the 2013 data from the Large Underground Xenon (LUX) experiment for four different classes of mediators. This analysis extends the reach of liquid xenon-based DM search instruments to lower DM masses than has been achieved previously.

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U2 - 10.1103/PhysRevLett.122.131301

DO - 10.1103/PhysRevLett.122.131301

M3 - Article

C2 - 31012624

AN - SCOPUS:85064037160

VL - 122

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 13

M1 - 131301

ER -

Results of a Search for Sub-GeV Dark Matter Using 2013 LUX Data

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