Dr
Chung-Lin SHAN
(Department of Physics, National Cheng Kung University)
27/07/2010 10:20
Dark Matter Direct Searches
Talk
We reexamine the model-independent data analysis methods for extracting properties of Weakly Interacting Massive Particles (WIMPs) using data (measured recoil energies) from direct Dark Matter detection experiments directly and, as a more realistic study, consider small fractions of residue background events, which pass all discrimination criteria and then mix with other real WIMP-induced...
M.
Tatsuhiro Naka
(Nagoya university)
27/07/2010 10:40
Dark Matter Direct Searches
Talk
We are approaching the R&D of high resolution nuclear emulsion:NIT for directional dark matter search. NIT is the only detector that is direction-sensitive and solid.
Now this project is developing for construction of prototype detector and test running. In this talk, status of new production system of nuclear emulsion and readout system of recoil tracks will be reported.
Dr
Daniel Santos
(LPSC/Grenoble/UJF/IN2P3/CNRS)
27/07/2010 11:00
Talk
MIMAC is a project of directonal direct detection of non-baryonic dark matter using a matrix of micro-tpc chambers with a 3D reconstruction of recoil tracks.
The directionality degree of freedom opens the possibility to reject the background efficiently by its isotropic spatial distribution as it has been shown in our recent papers (J.Billard et al.). The 3D reconstruction is possible due to...
Dr
James Battat
(MIT)
27/07/2010 11:20
Dark Matter Direct Searches
Talk
A WIMP detector with directional sensitivity could correlate signal events with astrophysical sources, thereby providing a definitive observable signature of dark matter. Our Dark Matter Time Projection Chamber (DMTPC) collaboration uses a gas-based detector with optical and charge readout to achieve directional sensitivity. We have built a 10-liter prototype detector and operated it in a...
Dr
Daniel Snowden-Ifft
(Occidental College)
27/07/2010 11:40
Dark Matter Direct Searches
Talk
The DRIFT dark matter detector is a 1 m^3 scale TPC with direction sensitivity to WIMP recoils operating in the Boulby Mine in England. For many years DRIFT operated with CS2 as our target gas. Recently we have researched the possibility of mixing a spin-dependent gases to the electronegative CS2 gas. This effort was successful and we have recently begun underground operation of a 30 Torr...
M.
Eric Miller
(Unviersity of New Mexico)
27/07/2010 11:55
Dark Matter Direct Searches
Talk
The DRIFT dark matter detector is a 1 m^3 scale TPC with direction sensitivity to WIMP recoils operating in the Boulby Mine in England. Our primary background are from low-energy nuclear recoil events due to radon progeny plated out on the detector's wire central cathode. Here we describe a dramatic background reduction resulting from the installation of a new thin-film central cathode. We...
Prof.
Neil Spooner
(University of Sheffield)
27/07/2010 12:15
Dark Matter Direct Searches
Talk
Directional WIMP experiments are now reaching a level of maturity that suggests a scale-up towards a very large experiment able to identify a directional galactic signal for WIMPs is feasible. This is being widely discussed in the context of the CYGNUS cooperation of world groups active in directional technology. Progress towards possible concepts will be explored, including the new design...