Updated particle collisions on quark and gluon level
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Updated particle Collisions on Quark and Gluon level. Erik Johansson Stockholm University ATLAS week Montreux 2012. Quark and Gluon Collisions. Dynamics Gluon exchange Gluon fusion Quark-antiquark annihilation Quark and gluon interactions Higgs particle production Decaying to ZZ

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Updated particle collisions on quark and gluon level

Updated particle Collisions onQuark and Gluon level

Erik Johansson

Stockholm University

ATLAS week Montreux 2012


Quark and gluon collisions
Quark and Gluon Collisions

  • Dynamics

    • Gluon exchange

    • Gluon fusion

    • Quark-antiquark annihilation

  • Quark and gluon interactions

    • Higgs particle production

      • Decaying to ZZ

      • Decaying to gg

    • Top-antitop production

      • Decaying to almost every quark and lepton of the Standard Model

    • Z particle production

      • Decaying to an electron and a positron


Physics in about a minute
Physics in about a minute

  • Physics in a minute (or two ... or three)

    • Each animation is about a minute and a half long

      • About 80 MB HD (the double for top-antitop) (QuickTime, H264 compact.)

  • Simplifications

    • No Lorentz contraction

    • No virtual loops

  • Start with the proton

    • A complex object

3


One example one of the most complex
ONE EXAMPLE – ONE OF THE MOST COMPLEX

On atlas.ch (thanks to Paul Schaffner)


In the pipeline
In the pipeline

  • Update of four jet production – hadronisation

  • A bit of a challenge

  • Article ”Exploring Quarks, Gluons and the Higgs particle” to appear in Physics Education explains the physics a bit more in detail.


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