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![Page 1: 2/27/2012Katsushi Arisaka, UCLA 1 Katsushi Arisaka University of California, Los Angeles Department of Physics and Astronomy arisaka@physics.ucla.edu Why.](https://reader034.fdocuments.in/reader034/viewer/2022050714/56649e555503460f94b4c069/html5/thumbnails/1.jpg)
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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2/27/2012 Katsushi Arisaka, UCLA 2Why are we here?
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Solar System
Sun Earth
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2/27/2012 Katsushi Arisaka, UCLA 4
Andromeda
~100 Billions Stars in a Galaxy
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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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2/27/2012 Katsushi Arisaka, UCLA 7
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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2/27/2012 Katsushi Arisaka, UCLA 8
Hubble Deep FieldPhysicists’ View of Early Universe
Fiat lux
Let there be light
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2/27/2012 Katsushi Arisaka, UCLA 9
CERN and LHC in Geneva
27 km Circumference
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2/27/2012 Katsushi Arisaka, UCLA 10
LHC Tunnel with Magnets
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2/27/2012 Katsushi Arisaka, UCLA 11
CMS Collaboration (1993 ~)
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2/27/2012 Katsushi Arisaka, UCLA 12
CMS
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2/27/2012 Katsushi Arisaka, UCLA 13
CMS Barrel Yoke
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2/27/2012 Katsushi Arisaka, UCLA 14
Installing muon Detectors
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2/27/2012 Katsushi Arisaka, UCLA 15
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2/27/2012 Katsushi Arisaka, UCLA 16
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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 19
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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.