M.
David Phillips
(Graduate Student)
11/03/2009 08:50
Using data collected by the KTeV Experiment at Fermi National Accelerator Laboratory in Batavia, Illinois, this study will be the first experimental analysis of $K_{L}\rightarrow\pi^{0}\pi^{0}\mu^{+}\mu^{-}$. Although this decay mode is possible within the Standard Model, it is limited to a very narrow band of phase space. The HyperCP Experiment has recently observed three...
Dr
Fu-Sin LING
(Service de Physique Théorique - U.L.B. (Brussels))
11/03/2009 09:10
We investigate the possibility of having a TeV scale scalar dark matter candidate for different representations of SU(2)L. Aside from gauge interactions, scalar couplings are shown to play a key role. Their contributions to annihilation and DM-nucleon cross-sections are derived, and discussed in light of current direct and indirect dark matter detection experiments.
Dr
Emiliano Mocchiutti
(INFN (Istituto Nazionale di Fisica Nucleare) Trieste)
11/03/2009 09:30
On the 15th of June 2006, the PAMELA satellite-borne experiment was
launched from the Baikonur cosmodrome and it has been collecting data
since July 2006. The apparatus comprises a time-of-flight system, a
silicon-microstrip magnetic spectrometer, a silicon-tungsten
electromagnetic calorimeter, an anticoincidence system, a shower tail
counter scintillator and a neutron detector. The...
M.
Marco CIRELLI
(SPhT - CEA/Saclay)
11/03/2009 10:25
Recent data from the PAMELA satellite and a number of balloon experiment have reported unexpected excesses in the measured fluxes of cosmic rays. Are these the first direct evidences for Dark Matter? If yes, which DM models and candidates can explain these anomalies and what do they imply for future searches? Is this all compatible with other constraints?
Prof.
Tsvi Piran
(Racah Institute for Physics Hebrew University Jerusalem Israel)
11/03/2009 10:45
I review the astrophysical issues that are at the heart of the Pamela and ATIC observations. Specifically I stress the
importance of diffusion and escape of Cosmic Rays from the Galaxy as well as the issue of cooling of Cosmic Ray leptons while traveling in the Galaxy. I summarize various astrophysical resolutions of these two observations. I then present a novel idea - the concentration...
M.
Timur Delahaye
(LAPTh (Annecy, France))
11/03/2009 11:10
Recent PAMELA data seem to indicate an excess in positron
cosmic rays around ~10 GeV that may be due to galactic
Dark Matter particle annihilation. I will explain how the
background of this signal is estimated and focus on the
uncertainties that make our task difficult in constraining
Dark Matter. I will explain how analysing simultaneously
different cosmic ray particles is the only way...
