TY  - JOUR
AU  - XENON100 Collaboration (Aprile, E. et al
AU  - Orrigo, S. E. A.
PY  - 2016
DA  - 2016//
TI  - Low-mass dark matter search using ionization signals in XENON100
T2  - Phys. Rev. D
JO  - Physical Review D
SP  - 092001
EP  - 6pp
VL  - 94
IS  - 9
PB  - Amer Physical Soc
AB  - We perform a low-mass dark matter search using an exposure of 30 kg x yr with the XENON100 detector. By dropping the requirement of a scintillation signal and using only the ionization signal to determine the interaction energy, we lowered the energy threshold for detection to 0.7 keV for nuclear recoils. No dark matter detection can be claimed because a complete background model cannot be constructed without a primary scintillation signal. Instead, we compute an upper limit on the WIMP-nucleon scattering cross section under the assumption that every event passing our selection criteria could be a signal event. Using an energy interval from 0.7 keV to 9.1 keV, we derive a limit on the spin-independent WIMP-nucleon cross section that excludes WIMPs with a mass of 6 GeV/c(2) above 1.4 x 10(-41) cm(2) at 90% confidence level.
SN  - 2470-0010
UR  - http://arxiv.org/abs/1605.06262
UR  - https://doi.org/10.1103/PhysRevD.94.092001
DO  - 10.1103/PhysRevD.94.092001
LA  - English
N1  - WOS:000386772500001
ID  - XENON100CollaborationAprile+Orrigo2016
ER  -