Eva Ziebarth
(Karlsruhe Institute of Technology)
27/08/2010, 14:00
Astro
The neutralino is the lightest supersymmetric particle in many SUSY models. Thus in R parity
conserving models it provides a perfect dark matter candidate by being electromagnetically
neutral, weakly interacting and stable. Following cosmological models, at the freeze-out time
most neutralinos should have been transformed into standard model particles by annihilation.
The annihilation...
Dr
Chung-Lin Shan
(Department of Physics, National Cheng Kung University)
27/08/2010, 14:17
Astro
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...
Dr
Debottam Das
(Laboratoire de Physique Theorique d'Orsay (LPT, Orsay))
27/08/2010, 14:34
Astro
In the Next-to-Minimal Supersymmetric Standard Model, a bino-like LSP
can be as light as a few GeV and satisfy WMAP constraints on the dark
matter relic density in the presence of a light CP-odd Higgs scalar. We
study upper bounds on direct detection cross sections for such a light
LSP in the mass range 2--20~GeV in the NMSSM, respecting all constraints
from B-physics and LEP. The OPAL...
Dr
Klaus Eitel
(Karlsruhe Institute of Technology)
27/08/2010, 14:51
Astro
EDELWEISS-2 is the second phase of a Ge-bolometer experiment located in the underground laboratory Laboratoire Souterrain de Modane (LSM, France). New cryogenic detectors with an improved background rejection (interleaved electrodes design, Phys. Lett. B681 (2009) 305) have been successfully implemented. A continuous operation of ten of these bolometers at LSM together with an active muon veto...
Dr
Erik Strahler
(Vrije Universiteit Brussel)
27/08/2010, 15:08
Astro
IceCube is a km^3 scale neutrino detector being constructed deep in the Antarctic ice. When complete, IceCube will consist of over 5000 optical modules deployed on 86 strings between 1450 and 2450 m of depth. Of these, 6 strings will comprise a densely packed subarray of high efficiency modules in the deepest, clearest ice called DeepCore, which will extend the sensitivity of neutrino...
Dr
Jong-Chul Park
(KIAS)
27/08/2010, 15:25
Astro
We investigate the leptophilic properties of Dirac gauginos in a R-symmetric N=2 supersymmetric model with extended gauge and Higgs sectors. The annihilation of Dirac gauginos to leptons requires no chirality flip in the final states so that it is not suppressed as in the Majorana case. This implies that it can be sizable enough to explain the positron excess observed by the PAMELA experiment...
