Dark Matter Search Results from the PICO-60 C3 F8 Bubble Chamber
- NázevTitle
- Dark Matter Search Results from the PICO-60 C3 F8 Bubble ChamberDark Matter Search Results from the PICO-60 C3 F8 Bubble Chamber
- Druh výsledkuResult type
- Článek v časopiseJournal article
- AutořiAuthors
- C. Amole, M. Ardid, IJ Arnquist, DM. Asner, B. Baxter, E. Behnke, P. Bhattacharjee, H. Borsodi, M. Bou-Cabo, P. Campion, G. Cao, CJ. Chen, U. Chowdhury, K. Clark, JI. Collar, PS. Cooper, M. Crisler, G. Crowder, CE. Dahl, M. Das, S. Fallows, J. Farine, I. Felis, R. Filgas, F. Girard, G. Giroux, J. Hall, O. Harris, EM. Hoppe, M. Jin, CB. Krauss, M. Laurin, I. Lawson, A. Leblanc, I. Levine, WH. Lippincott, F. Mamedov, D. Maurya, P. Mitra, T. Nania, I. Štekl … a dalších 21… and 21 more
- DOIDOI
- 10.1103/PhysRevLett.118.251301
- Časopis / citaceJournal / citation
- Physical Review Letters. 2017, 118(25), ISSN 0031-9007.
- RokYear
- 2017
- JazykLanguage
- eng
- WoSWoS
- 000404004200003
- ScopusScopus
- 2-s2.0-85021376534
- RIVRIV
- RIV/68407700:21340/17:00312389!RIV18-MSM-21340___
- ProjektProject
- Podzemní laboratoř LSM (Laboratoire Souterrain de Modane, Francie) - český příspěvek do výzkumné infrastruktury evropského významuUnderground laboratory LSM (Laboratoire Souterrain de Modane, Francie) - Czech contribution to research infrastructure of European level
AbstraktAbstract
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 x 10(-41) cm(2) for a 30-GeVc(-2) WIMP, more than 1 order of magnitude improvement from previous PICO results.
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 x 10(-41) cm(2) for a 30-GeVc(-2) WIMP, more than 1 order of magnitude improvement from previous PICO results.