Dark Matter Search Results from the PICO-60 C3 F8 Bubble Chamber

PICO Collaboration

Research output: Contribution to journalArticle

121 Citations (Scopus)

Abstract

New results are reported from the operation of the PICO-60 dark matter detector, a bubble chamber filled with 52 kg of C3F8 located in the SNOLAB underground laboratory. As in previous PICO bubble chambers, PICO-60 C3F8 exhibits excellent electron recoil and alpha decay rejection, and the observed multiple-scattering neutron rate indicates a single-scatter neutron background of less than one event per month. A blind analysis of an efficiency-corrected 1167-kg day exposure at a 3.3-keV thermodynamic threshold reveals no single-scattering nuclear recoil candidates, consistent with the predicted background. These results set the most stringent direct-detection constraint to date on the weakly interacting massive particle (WIMP)-proton spin-dependent cross section at 3.4×10-41 cm2 for a 30-GeV c-2 WIMP, more than 1 order of magnitude improvement from previous PICO results.

Original languageEnglish (US)
Article number251301
JournalPhysical Review Letters
Volume118
Issue number25
DOIs
StatePublished - Jun 23 2017

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bubble chambers
weakly interacting massive particles
dark matter
nuclear scattering
alpha decay
rejection
neutron scattering
neutrons
thermodynamics
thresholds
protons
detectors
cross sections
decay
electrons

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

@article{2fc4fdccb4184742bde6ff7881a83e58,
title = "Dark Matter Search Results from the PICO-60 C3 F8 Bubble Chamber",
abstract = "New results are reported from the operation of the PICO-60 dark matter detector, a bubble chamber filled with 52 kg of C3F8 located in the SNOLAB underground laboratory. As in previous PICO bubble chambers, PICO-60 C3F8 exhibits excellent electron recoil and alpha decay rejection, and the observed multiple-scattering neutron rate indicates a single-scatter neutron background of less than one event per month. A blind analysis of an efficiency-corrected 1167-kg day exposure at a 3.3-keV thermodynamic threshold reveals no single-scattering nuclear recoil candidates, consistent with the predicted background. These results set the most stringent direct-detection constraint to date on the weakly interacting massive particle (WIMP)-proton spin-dependent cross section at 3.4×10-41 cm2 for a 30-GeV c-2 WIMP, more than 1 order of magnitude improvement from previous PICO results.",
author = "{PICO Collaboration} and C. Amole and M. Ardid and Arnquist, {I. J.} and Asner, {D. M.} and D. Baxter and E. Behnke and P. Bhattacharjee and H. Borsodi and M. Bou-Cabo and P. Campion and G. Cao and Chen, {C. J.} and U. Chowdhury and K. Clark and Collar, {J. I.} and Cooper, {P. S.} and M. Crisler and G. Crowder and Dahl, {C. E.} and M. Das and S. Fallows and J. Farine and I. Felis and R. Filgas and F. Girard and G. Giroux and J. Hall and O. Harris and Hoppe, {E. W.} and M. Jin and Krauss, {C. B.} and M. Laurin and I. Lawson and A. Leblanc and I. Levine and Lippincott, {W. H.} and F. Mamedov and D. Maurya and P. Mitra and T. Nania and R. Neilson and Noble, {A. J.} and S. Olson and A. Ortega and A. Plante and R. Podviyanuk and S. Priya and Robinson, {A. E.} and A. Roeder and R. Rucinski",
year = "2017",
month = "6",
day = "23",
doi = "10.1103/PhysRevLett.118.251301",
language = "English (US)",
volume = "118",
journal = "Physical Review Letters",
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Dark Matter Search Results from the PICO-60 C3 F8 Bubble Chamber. / PICO Collaboration.

In: Physical Review Letters, Vol. 118, No. 25, 251301, 23.06.2017.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Dark Matter Search Results from the PICO-60 C3 F8 Bubble Chamber

AU - PICO Collaboration

AU - Amole, C.

AU - Ardid, M.

AU - Arnquist, I. J.

AU - Asner, D. M.

AU - Baxter, D.

AU - Behnke, E.

AU - Bhattacharjee, P.

AU - Borsodi, H.

AU - Bou-Cabo, M.

AU - Campion, P.

AU - Cao, G.

AU - Chen, C. J.

AU - Chowdhury, U.

AU - Clark, K.

AU - Collar, J. I.

AU - Cooper, P. S.

AU - Crisler, M.

AU - Crowder, G.

AU - Dahl, C. E.

AU - Das, M.

AU - Fallows, S.

AU - Farine, J.

AU - Felis, I.

AU - Filgas, R.

AU - Girard, F.

AU - Giroux, G.

AU - Hall, J.

AU - Harris, O.

AU - Hoppe, E. W.

AU - Jin, M.

AU - Krauss, C. B.

AU - Laurin, M.

AU - Lawson, I.

AU - Leblanc, A.

AU - Levine, I.

AU - Lippincott, W. H.

AU - Mamedov, F.

AU - Maurya, D.

AU - Mitra, P.

AU - Nania, T.

AU - Neilson, R.

AU - Noble, A. J.

AU - Olson, S.

AU - Ortega, A.

AU - Plante, A.

AU - Podviyanuk, R.

AU - Priya, S.

AU - Robinson, A. E.

AU - Roeder, A.

AU - Rucinski, R.

PY - 2017/6/23

Y1 - 2017/6/23

N2 - New results are reported from the operation of the PICO-60 dark matter detector, a bubble chamber filled with 52 kg of C3F8 located in the SNOLAB underground laboratory. As in previous PICO bubble chambers, PICO-60 C3F8 exhibits excellent electron recoil and alpha decay rejection, and the observed multiple-scattering neutron rate indicates a single-scatter neutron background of less than one event per month. A blind analysis of an efficiency-corrected 1167-kg day exposure at a 3.3-keV thermodynamic threshold reveals no single-scattering nuclear recoil candidates, consistent with the predicted background. These results set the most stringent direct-detection constraint to date on the weakly interacting massive particle (WIMP)-proton spin-dependent cross section at 3.4×10-41 cm2 for a 30-GeV c-2 WIMP, more than 1 order of magnitude improvement from previous PICO results.

AB - New results are reported from the operation of the PICO-60 dark matter detector, a bubble chamber filled with 52 kg of C3F8 located in the SNOLAB underground laboratory. As in previous PICO bubble chambers, PICO-60 C3F8 exhibits excellent electron recoil and alpha decay rejection, and the observed multiple-scattering neutron rate indicates a single-scatter neutron background of less than one event per month. A blind analysis of an efficiency-corrected 1167-kg day exposure at a 3.3-keV thermodynamic threshold reveals no single-scattering nuclear recoil candidates, consistent with the predicted background. These results set the most stringent direct-detection constraint to date on the weakly interacting massive particle (WIMP)-proton spin-dependent cross section at 3.4×10-41 cm2 for a 30-GeV c-2 WIMP, more than 1 order of magnitude improvement from previous PICO results.

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DO - 10.1103/PhysRevLett.118.251301

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AN - SCOPUS:85021376534

VL - 118

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

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M1 - 251301

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