2/27/2012katsushi arisaka, ucla 1 katsushi arisaka university of california, los angeles department...
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2/27/2012 Katsushi Arisaka, UCLA 1
Katsushi Arisaka
University of California, Los Angeles
Department of Physics and Astronomy
Why are we here?Origin of Universe and
Ourselves
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v
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Solar System
Sun Earth
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Andromeda
~100 Billions Stars in a Galaxy
2/27/2012 Katsushi Arisaka, UCLA 5~100 Billion Galaxies
Hubble Deep Field
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13 billion light years away(90% of speed of light)
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Hubble’s Law:Expansion of the Universe
Sun/Earth
Horizon of Universe
Moving Away at Speed of Light
14 BillonLight Years
Big Bang!
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Hubble Deep FieldPhysicists’ View of Early Universe
Fiat lux
Let there be light
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CERN and LHC in Geneva
27 km Circumference
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LHC Tunnel with Magnets
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CMS Collaboration (1993 ~)
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CMS
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CMS Barrel Yoke
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Installing muon Detectors
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Katsushi Arisaka, UCLASept 15, 2008 Issue
Particle detectorsconstructedat Westwood,now at LHC, CERN
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First Event at LHC – Recreation of the Big Bang! (Nov 7, 2009)2/27/2012 Katsushi Arisaka, UCLA 18
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2/27/2012 Katsushi Arisaka, UCLA 20Why are we here?
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Are there more than
one Universe?
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Linde’s Multiverseby Chaotic Inflation
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There may be ~100 Billion Universes.