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Amole C, Ardid M, Arnquist IJ, et al. Dark Matter Search Results from the PICO-60 C_{3}F_{8} Bubble Chamber. Phys Rev Lett. 2017;118(25):251301doi: 10.1103/PhysRevLett.118.251301.
Amole, C., Ardid, M., Arnquist, I. J., Asner, D. M., Baxter, D., Behnke, E., Bhattacharjee, P., Borsodi, H., Bou-Cabo, M., Campion, P., Cao, G., Chen, C. J., Chowdhury, U., Clark, K., Collar, J. I., Cooper, P. S., Crisler, M., Crowder, G., Dahl, C. E., Das, M., Fallows, S., Farine, J., Felis, I., Filgas, R., Girard, F., Giroux, G., Hall, J., Harris, O., Hoppe, E. W., Jin, M., Krauss, C. B., Laurin, M., Lawson, I., Leblanc, A., Levine, I., Lippincott, W. H., Mamedov, F., Maurya, D., Mitra, P., Nania, T., Neilson, R., Noble, A. J., Olson, S., Ortega, A., Plante, A., Podviyanuk, R., Priya, S., Robinson, A. E., Roeder, A., Rucinski, R., Scallon, O., Seth, S., Sonnenschein, A., Starinski, N., Štekl, I., Tardif, F., Vázquez-Jáuregui, E., Wells, J., Wichoski, U., Yan, Y., Zacek, V., Zhang, J. (2017). Dark Matter Search Results from the PICO-60 C_{3}F_{8} Bubble Chamber. Physical review letters, 118(25), 251301. https://doi.org/10.1103/PhysRevLett.118.251301
Amole, C, et al. "Dark Matter Search Results from the PICO-60 C_{3}F_{8} Bubble Chamber." Physical review letters vol. 118,25 (2017): 251301. doi: https://doi.org/10.1103/PhysRevLett.118.251301
Amole C, Ardid M, Arnquist IJ, Asner DM, Baxter D, Behnke E, Bhattacharjee P, Borsodi H, Bou-Cabo M, Campion P, Cao G, Chen CJ, Chowdhury U, Clark K, Collar JI, Cooper PS, Crisler M, Crowder G, Dahl CE, Das M, Fallows S, Farine J, Felis I, Filgas R, Girard F, Giroux G, Hall J, Harris O, Hoppe EW, Jin M, Krauss CB, Laurin M, Lawson I, Leblanc A, Levine I, Lippincott WH, Mamedov F, Maurya D, Mitra P, Nania T, Neilson R, Noble AJ, Olson S, Ortega A, Plante A, Podviyanuk R, Priya S, Robinson AE, Roeder A, Rucinski R, Scallon O, Seth S, Sonnenschein A, Starinski N, Štekl I, Tardif F, Vázquez-Jáuregui E, Wells J, Wichoski U, Yan Y, Zacek V, Zhang J. Dark Matter Search Results from the PICO-60 C_{3}F_{8} Bubble Chamber. Phys Rev Lett. 2017 Jun 23;118(25):251301. doi: 10.1103/PhysRevLett.118.251301. Epub 2017 Jun 23. PMID: 28696731.
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Phys Rev Lett. 2017 Jun 23;118(25):251301. doi: 10.1103/PhysRevLett.118.251301. Epub 2017 Jun 23.

Dark Matter Search Results from the PICO-60 C_{3}F_{8} Bubble Chamber.

Physical review letters

C Amole, M Ardid, I J Arnquist, D M Asner, D Baxter, E Behnke, P Bhattacharjee, H Borsodi, M Bou-Cabo, P Campion, G Cao, C J Chen, U Chowdhury, K Clark, J I Collar, P S Cooper, M Crisler, G Crowder, C E Dahl, M Das, S Fallows, J Farine, I Felis, R Filgas, F Girard, G Giroux, J Hall, O Harris, E W Hoppe, M Jin, C B Krauss, M Laurin, I Lawson, A Leblanc, I Levine, W H Lippincott, F Mamedov, D Maurya, P Mitra, T Nania, R Neilson, A J Noble, S Olson, A Ortega, A Plante, R Podviyanuk, S Priya, A E Robinson, A Roeder, R Rucinski, O Scallon, S Seth, A Sonnenschein, N Starinski, I Štekl, F Tardif, E Vázquez-Jáuregui, J Wells, U Wichoski, Y Yan, V Zacek, J Zhang,

Affiliations

  1. Department of Physics, Queen's University, Kingston K7L 3N6, Canada.
  2. Departament de Física Aplicada, IGIC-Universitat Politècnica de València, Gandia 46730 Spain.
  3. Pacific Northwest National Laboratory, Richland, Washington 99354, USA.
  4. Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, USA.
  5. Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA.
  6. Department of Physics, Indiana University South Bend, South Bend, Indiana 46634, USA.
  7. Astroparticle Physics and Cosmology Division, Saha Institute of Nuclear Physics, Kolkata 700064, India.
  8. Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104, USA.
  9. Department of Physics, Laurentian University, Sudbury P3E 2C6, Canada.
  10. SNOLAB, Lively, Ontario P3Y 1N2, Canada.
  11. Enrico Fermi Institute, KICP and Department of Physics, University of Chicago, Chicago, Illinois 60637, USA.
  12. Department of Physics, University of Alberta, Edmonton T6G 2E1, Canada.
  13. Institute of Experimental and Applied Physics, Czech Technical University in Prague, Prague, Cz-12800, Czech Republic.
  14. Département de Physique, Université de Montréal, Montréal H3C 3J7, Canada.
  15. Northeastern Illinois University, Chicago, Illinois 60625, USA.
  16. Bio-Inspired Materials and Devices Laboratory (BMDL), Center for Energy Harvesting Material and Systems (CEHMS), Virginia Tech, Blacksburg, Virginia 24061, USA.
  17. Instituto de Física, Universidad Nacional Autónoma de México, México D. F. 01000, Mexico.

PMID: 28696731 DOI: 10.1103/PhysRevLett.118.251301

Abstract

New results are reported from the operation of the PICO-60 dark matter detector, a bubble chamber filled with 52 kg of C_{3}F_{8} located in the SNOLAB underground laboratory. As in previous PICO bubble chambers, PICO-60 C_{3}F_{8} 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}  cm^{2} for a 30-GeV c^{-2} WIMP, more than 1 order of magnitude improvement from previous PICO results.

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