Course Outline for Physics 880.05

II. C. Hard Processes in Nucleon-Nucleon Collisions (Ch. 4)

We will substitute most of the details given in Wong with more up-to-date descriptions. Therefore in preparation, read the Introduction to 4, sections 4.2, 4.3, and 4.5 but don't worry about the supplemental discussions in those sections.

  1. Anatomy of a Heavy Ion Collision
  2. Deep Inelastic Scattering (DIS): carried out at SLAC in 1972 (Nobel Prize in 1990) between an electron and a proton.
  3. Beyond Deep Inelastic Scattering: Scaling violations
  4. There are two theoretical approaches which are presently used to answer the following question:

    When two coherent parton wavefunctions collide, how does it initially form into a quark-gluon plasma?

    The reason to have these models are actually two-fold: to decide what signals will determine if a quark-gluon plasma has been formed in heavy-ion collisions and to decide how to build the detectors to look for these signals.

    Both rely on the idea of a Cascade: a scenario in which particles freely propagate and quantum mechanical cross sections are taken into account only when two particles are close enough together (like billiard balls or molecules in a box). The statistics of the particles are input through the Boltzmann transport equation which relates the propagation of the particles in question to the particle distribution function in phase space.

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Copyright © 1997,1998 Richard Furnstahl and James Steele.