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Physics & Astronomy

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October 10, 2017 | 3:30 p.m. - 4:30 p.m.
Category: Seminar
Location: Physics #312 | Map
666 W. Hancock
Detroit, MI 48201
Cost: Free!
Audience: Academic Staff, Current Graduate Students, Current Undergraduate Students, Faculty

Title: The phase diagram of QCD: effective theory, tetraquarks, and (almost) Lifshitz points

Speaker: Rob Pisarski (Brookhaven National Laboratory)
Abstract: I outline the development of an effective theory to describe
the phase diagram of Quantum ChromoDynamics (QCD)
at nonzero temperature and density.  The goal is to develop
a theory which can bridge numerical simulations on the lattice
with the computation of transport coefficents.  This is done
by combining a linear sigma model for the chiral phase transition
with a matrix model for deconfinement.  In this context, I discuss
how tetraquarks can affect the phase diagram, and even produce
two phase transitions for very light quarks.  I conclude with
an outline of the role which Lifshitz points might play.
For more information about this event, please contact Matt Barrett at +1 313 5770750 or