[Jlab-seminars] Physics Seminar

[Luci Collins]

*Physics Seminar
Fri., Feb. 19, 2010
11:00AM
CEBAF Center AUD.
Cookies & Coffee 10:45AM

*
*Neal Weiner Center for Cosmology and Particle Physics
New York University *

*"Astrophysical Motivations for Dark Forces" *

The existence of dark mater has been confirmed by a wide variety of 
experiments, on a wide variety of length scales. However, the nature of 
the dark matter remains elusive. One intriguing class of candidates - 
weakly interacting massive particles or ``WIMPs'' - offer the prospect 
of detection in cosmic rays, in direct detection experiments, and at 
colliders. Of late, there has been an increasing set of experimental 
signals, principally from cosmic rays, which may be providing a first 
sign of dark matter. I will explore the range of signals and anomalies, 
and the challenges of understanding all of them in terms of dark matter. 
Remarkably, dark matter theories with new forces at the GeV scale seem 
to provide a natural explanation. Thus, if dark matter is responsible 
for these anomalies, it may be pointing us to a much richer set of 
physics in the dark sector.
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