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Subir Sarkar (Oxford)
Wednesday 05 March 2008, 14:15-15:30
Seeing the high energy universe
- 👤 Speaker: Subir Sarkar (Oxford)
- 📅 Date & Time: Wednesday 05 March 2008, 14:15 - 15:30
- 📍 Venue: MR2, Centre for Mathematical Sciences
Abstract
Our view of the universe has historically been shaped by the thermal 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 accelerators. Their origin remains a mystery although recent data from the Pierre Auger Observatory in Argentina has begun to provide crucial clues. It is expected that the sources of cosmic rays also emit ultrahigh energy neutrinos and the IceCube observatory under construction at the South Pole should 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
Series This talk is part of the Theoretical Physics Colloquium series.
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