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SUMMARY:Seeing the high energy universe - Subir Sarkar (Oxford)
DTSTART:20080305T141500Z
DTEND:20080305T153000Z
UID:TALK10899@talks.cam.ac.uk
CONTACT:Diego Hernan Correa
DESCRIPTION:Our view of the universe has historically been shaped by the t
 hermal radiation we see from hot objects such as stars. However the cosmos
  is also filled with non-thermal radiation with comparable energy density 
 generated by violent phenomena such as supernovae\,  ctive galactic nuclei
  and gamma-ray bursts. In this talk I will focus on the cosmic rays whose 
 energies extend far beyond those that can be achieved at terrestrial accel
 erators. Their origin remains a mystery although recent data from the Pier
 re Auger Observatory in Argentina has begun to provide crucial clues. It i
 s expected that the sources of cosmic rays also emit ultrahigh energy neut
 rinos and the IceCube observatory under construction at the South Pole sho
 uld soon be able to detect them. I will discuss how such  observations can
  provide a probe of new physics both in and beyond the Standard Model 
LOCATION:MR2\, Centre for Mathematical Sciences
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