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This Week at Physics

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Events on Tuesday, March 19th, 2013

Chaos & Complex Systems Seminar
The textual structure of REM dreaming
Time: 12:05 pm
Place: 4274 Chamberlin (refreshments will be served)
Speaker: Art Schmaltz, Prairie State College
Abstract: The human brain during REM dreaming is a singular neurological event that may well be the most complex event known to science. As a biologically evolved system, dreaming long predates the evolution of human language.<br>
In this presentation, I will parse out one of the ten lines of evidence that argues that human language evolved &quot;down&quot; from the complexity of dreaming, and not &quot;up&quot; from a simpler biological system.
Host: Sprott
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WIPAC Seminar
Ultra-high energy neutrino events at the IceCube and the Glashow resonance
Time: 4:00 pm
Place: 5280 Chamberlin
Speaker: Atri Bhattacharya, Harish-Chandra Research Institute, Allahabad, India
Abstract: The Glashow resonance is a peak of enhanced cross-section for an electron-anti-neutrino of 6.3 PeV energy interacting with an electron and producing a resonant W boson, which further decays into electrons and hadrons producing cascades in a large volume (Km^3) neutrino detector such as the IceCube. We will explore the significance of this narrow bin of energy, generally with respect to ultra-high energy events in the IceCube, and particularly, in view of the two recently observed neutrino events at the PeV energies; we will show that the observation of (or lack of) events at 6.3 PeV energies in the future will allow us to understand several facets of the Ultra-high energy neutrino flux coming, possibly, from extra-galactic sources.
Host: Halzen
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