HEP101_Lecture3

HEP101_Lecture3 - 1 A. T. Goshaw Duke University HEP101 - 3...

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Unformatted text preview: 1 A. T. Goshaw Duke University HEP101 - 3 April 12, 2010 The ATLAS Experiment and the CERN Large Hadron Collider HEP 101 Plan March 29: Introduction and basic HEP terminology March 30: Special LHC event: first high-energy p+p collisions. Live video broadcasts in physics lobby and in this room. The LHC is now operating with 7 TeV pp collisions! April 5: relativistic mechanics April 12: measuring particle properties; applications of relativistic mechanics ?? : particle detectors ?? : analysis tools used in HEP research ?? : some short term research goals and projects 2 3 Recap: Single Particle Relativistic Kinematics E 2 = (pc) 2 + (mc 2 ) 2 for any free particle Four momentum P = (E/c, p ) X = (tc, r ) etc. Scalar product P 2 = P P = (E/c) 2 ( p ) 2 = (mc) 2 etc. Transformation of variables between inertial reference frames with relative velocity v o : X = L X where the elements of L are fixed by v o v p = m c E = m c 2 E 2 = (p c) 2 + (m c 2 ) 2 m 4 Lorentz transformations Let o = v o /c and o = 1/ 1 - o 2 Any 4-vector V in O has a value V when measured in O....
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HEP101_Lecture3 - 1 A. T. Goshaw Duke University HEP101 - 3...

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