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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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Constraining the Spin-Independent WIMP-Nucleon Coupling from Direct Dark Matter Detection Data (15'+5')
 
Weakly Interacting Massive Particles (WIMPs) are one of the leading 
candidates for Cold Dark Matter. For understanding the properties of WIMPs 
and identifying them among new particles produced at colliders (hopefully in 
the near future), determinations of their mass and their couplings on nucleons 
from direct Dark Matter detection experiments are essential. Based on our 
method for determining the WIMP mass model-independently from 
experimental data, we present a way to also estimate the spin-independent 
(SI) WIMP-nucleon coupling by using measured recoil energies directly. This 
method is independent of the as yet unknown velocity distribution of halo 
WIMPs. In spite of the uncertainty of the local WIMP density, at least an upper 
limit on the SI WIMP-nucleon coupling could be given, once two (or more) 
detectors with different target nuclei obtain positive signals. In a background-
free environment, for a WIMP mass of 100 GeV its SI coupling on nucleons 
could 
in principle be determined with an error of O(30\%) with only 50 events from 
each experiment.
 
Id: 491
Place: AlbaNova
Room: Oskar Klein auditorium
Starting date:
19-Aug-2008   14:45
Duration: 20'
Contribution type: Talk
Primary Authors: Dr. SHAN, Chung-Lin (DMRC, Seoul National University, Korea)
Presenters: Dr. SHAN, Chung-Lin
Material: slide Slides
 
Included in session: Direct detection - phenomenology/theory
Included in track: Dark matter phenomenology / theory
 

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