First search for a dark matter annual modulation signal with NaI(Tl) in the Southern Hemisphere by DM-Ice17 [electronic resource].

Published: Washington, D.C. : United States. National Nuclear Security Administration, 2017.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
Physical Description: Article numbers 032,006 : digital, PDF file
Additional Creators: Fermi National Accelerator Laboratory, United States. National Nuclear Security Administration, and United States. Department of Energy. Office of Scientific and Technical Information

Access Online

www.osti.gov

Availability

Finding items...

Restrictions on Access

Free-to-read Unrestricted online access

Summary

The first search for a dark matter annual modulation signal with NaI(Tl) target material in the Southern Hemisphere conducted with the DM-Ice17 experiment is presented. DM-Ice17 consists of 17 kg of NaI(Tl) scintillating crystal under 2200 m.w.e. overburden of Antarctic glacial ice. The analysis presented here utilizes a 60.8 kg yr exposure. While unable to exclude the signal reported by DAMA/LIBRA, the DM-Ice17 data are consistent with no modulation in the energy range of 4-20 keV, providing the strongest limits on WIMP candidates from a direct detection experiment located in the Southern Hemisphere. Additionally, the successful deployment and stable operation of 17 kg of NaI(Tl) crystal over 3.5 years establishes the South Pole ice as a viable location for future underground, low-background experiments.

Report Numbers

E 1.99:arxiv:1602.05939
E 1.99: fermilab-pub--16-043-ae
fermilab-pub--16-043-ae
arxiv:1602.05939

Subject(s)

Note

Published through SciTech Connect.
02/28/2017.
"arxiv:1602.05939"
" fermilab-pub--16-043-ae"
"1422186"
Physical Review D 95 3 ISSN 2470-0010; PRVDAQ FT
Barbosa de Souza, E.; Cherwinka, J.; Cole, A.; Ezeribe, A.; Grant, D.; Halzen, F.; Heeger, K.; Hsu, L.; Hubbard, A.; Jo, J.; Karle, A.; Kauer, M.; Kudryavtsev, V.; Lim, K.; Macdonald, C.; Maruyama, R.; Mouton, F.; Paling, S.; Pettus, W.; Pierpoint, Z.; Reilly, B.; Robinson, M.; Rogers, F.; Sandstrom, P.; Scarff, A.; Spooner, N.; Telfer, S.; Yang, L.

Funding Information

AC02-07CH11359

View MARC record | catkey: 23495224