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

PICO Collaboration

doi:10.1103/PhysRevLett.118.251301

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

PICO Collaboration

Physics and Astronomy

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

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 language	English (US)
Article number	251301
Journal	Physical review letters
Volume	118
Issue number	25
DOIs	https://doi.org/10.1103/PhysRevLett.118.251301
State	Published - Jun 23 2017

Funding

We wish to acknowledge the support of the Natural Sciences and Engineering Research Council of Canada (NSERC) and the Canada Foundation for Innovation (CFI) for funding. We acknowledge the support from National Science Foundation (NSF) (Grants No.0919526, No.1506337, No.1242637, and No.1205987). We acknowledge that this work is supported by the U.S. Department of Energy (DOE) Office of Science, Office of High Energy Physics (under Award No.DE-SC-0012161), by a DOE Office of Science Graduate Student Research (SCGSR) award, by Direccion General Asuntos del Personal Academico, Universidad Nacional Autonoma de Mexico (DGAPA-UNAM) through the grant Programa de Apoyo a Proyectos de Investigaciun e Innovacian Tecnolagica (PAPIIT) No.IA100316 and by Consejo Nacional de Ciencia y Tecnologia (CONACyT) (Mexico) through Grant No.252167, by the Department of Atomic Energy (DAE), the Government of India, under the Center of AstroParticle Physics II project (CAPP-II) at Saha Institute of Nuclear Physics (SINP), by the Czech Ministry of Education, Youth and Sports (Grant No.LM2015072), and by the Spanish Ministerio de Economia y Competitividad, Consolider MultiDark (Grant No.CSD2009-00064). This work is partially supported by the Kavli Institute for Cosmological Physics at the University of Chicago through NSF Grant No.1125897, and an endowment from the Kavli Foundation and its founder Fred Kavli. We also wish to acknowledge the support from Fermi National Accelerator Laboratory under Contract No.De-AC02-07CH11359, and Pacific Northwest National Laboratory, which is operated by Battelle for the U.S. Department of Energy under Contract No.DE-AC05-76RL01830. We also thank Compute Canada and the Center for Advanced Computing, ACENET, Calcul Quebec, Compute Ontario, and WestGrid for the computational support.

ASJC Scopus subject areas

General Physics and Astronomy

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10.1103/PhysRevLett.118.251301

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@article{09d2535062b0413985db536a107fb687,

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 = jun,

day = "23",

doi = "10.1103/PhysRevLett.118.251301",

language = "English (US)",

volume = "118",

journal = "Physical review letters",

issn = "0031-9007",

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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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U2 - 10.1103/PhysRevLett.118.251301

DO - 10.1103/PhysRevLett.118.251301

M3 - Article

C2 - 28696731

SN - 0031-9007

VL - 118

JO - Physical review letters

JF - Physical review letters

IS - 25

M1 - 251301

ER -

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

Abstract

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