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IDM2008 - Identification of Dark Matter 2008
IDM2008 - Identification of Dark Matter 2008
18-22 August 2008 AlbaNova
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"DM-TPC: a novel approach to directional Dark Matter detection" (15'+5')
 
Directional detection of dark matter can provide unambiguous
observation of dark matter (DM) interactions even in the presence of
insidious backgrounds.

The DM-TPC collaboration is developing a detector with the goal
of measuring the direction and sense ("head-tail") of nuclear recoils
produced in spin-dependent DM interactions.
The detector consists of a low pressure TPC with optical readout
filled with CF4 gas at low pressure. A collision between a WIMP with
a gas molecule results in a nucleus recoil of 1-2 mm. The
measurement of the energy loss along the recoil allows us to
determine the sense and the direction of the recoil.

Results from a prototype detector operated in a low-energy neutron beam
clearly demonstrate the suitability of this approach to measure directionality.
In particular, the first observation of the "head-tail" effect for low-energy 
neutrons
had been recently published  by our Collaboration.

A full-scale (1m^3) module is now being designed. This detector, which
will be operated underground in 2009, will allow us to set  limits on
spin-dependent Dark Matter interactions using a directional detector.
The sensitivity of this experiment will be discussed in this talk.
 
Id: 363
Place: AlbaNova
Room: Oskar Klein auditorium
Starting date:
20-Aug-2008   10:10
Duration: 20'
Contribution type: Talk
Primary Authors: Prof. GABRIELLA, Sciolla (MIT)
Presenters: Prof. GABRIELLA, Sciolla
Material: slide Slides
 
Included in session: Direct detection - experiments
Included in track: Direct detection - experiments
 

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