Conveners
Friday Morning 1: Light/Charge Detection
- Denver Whittington (Syracuse University)
10.
Study of the Low-Energy ER/NR Discrimination and its Electric-Field Dependence with Liquid Argon
Mr
Tatsuki Washimi
(Waseda university)
22/09/2017, 09:00
Light/charge response in Noble Elements (gas, liquid, dual phase)
Presentation
ANKOK project is a dark matter search experiment in Japan using the double-phase argon detector, specialized for the low mass WIMP (~10GeV) detection. Double-phase Argon detector is generally a good technique for WIMP dark matter direct search due to powerful rejection power against electron recoil BG events. However compared with xenon, the basic properties and discrimination power from S2...
Dr
Carlos Ourivio Escobar
(FERMILAB)
22/09/2017, 09:15
Light/charge response in Noble Elements (gas, liquid, dual phase)
Presentation
After a short review of previous attempts to observe and measure the near-infrared scintillation in liquid argon, we present new results obtained with a dedicated cryostat at the Fermilab Proton Assembly Building (PAB). The new results give confidence that the near-infrared light can be used as the much needed light signal in large liquid argon time projection chambers and we present first...
Dr
Tessa Johnson
(UC Davis)
22/09/2017, 09:30
Light/charge response in Noble Elements (gas, liquid, dual phase)
Presentation
The Argon Response to Ionization and Scintillation (ARIS) experiment was constructed to characterize the response of single-scatter nuclear and electronic recoils in liquid argon for support of direct dark matter detection experiments with a liquid argon target. A 0.5 kg active volume scintillation cell of liquid argon was exposed to the highly collimated and quasi-monoenergetic LICORNE...
Dr
Roberto Santorelli
(CIEMAT Madrid)
22/09/2017, 09:45
Light/charge response in Noble Elements (gas, liquid, dual phase)
Presentation
With an active target mass of 850 kg, ArDM represents an important milestone towards developments for large LAr Dark Matter detectors. In this talk we introduce the experimental apparatus currently installed underground at the Laboratorio Subterráneo de Canfranc (LSC), Spain, presenting the results of the analysis of the first underground run. A relatively low value close to 0.5 m was found...
Ms
Elizabeth Boulton
(Lawrence Berkeley National Lab)
22/09/2017, 10:00
Light/charge response in Noble Elements (gas, liquid, dual phase)
Presentation
The Particle Identification in Xenon at Yale (PIXeY) experiment is a small, two-phase (liquid and gas) xenon detector. PIXeY has been designed and built to investigate and optimize properties of this class of detectors with an applied drift field of 0.5 to 2.0 kV/cm and an extraction field as high as 13.3 kV/cm in the xenon gas. This talk will discuss analyses of data collected from PIXeY...
Brian Lenardo
(LLNL / UC Davis)
22/09/2017, 10:15
Light/charge response in Noble Elements (gas, liquid, dual phase)
Presentation
The Large Underground Xenon (LUX) experiment is a 250kg, dual-phase xenon time projection chamber (TPC) located in the Sanford Underground Research Facility in Lead, South Dakota, USA. The experiment searches for nuclear recoils (NR) that may be caused by Weakly Interacting Massive Particles (WIMPs), a leading candidate for the dark matter content of the universe. Residual backgrounds due to...
Mr
Jingqiang Ye
(UC San Diego)
22/09/2017, 10:30
Light/charge response in Noble Elements (gas, liquid, dual phase)
Presentation
The XENON100 detector uses liquid xenon time projection chamber to search for nuclear recoils(NR) caused by hypothetical Weakly Interacting Massive Particles (WIMPs). The backgrounds are mostly electronic recoils(ER), thus it’s crucial to distinguish NR from ER. Using high statistical calibration data from tritiated methane, AmBe and other sources in XENON100, the ER/NR discrimination under...
