Nuclear/Particle Theory Seminar
This page contains the schedule for talks in the
Duke Nuclear/Particle Theory Seminar series. The seminar
is held every Thursday at 2:00 pm in the faculty lounge,
Room 298 (Old Room 234) of the Duke Physics Department
unless indicated otherwise below.
Some days are labeled "Informal Theory Lunch". On these days
there is no specific topic and we encourage folks to show up
with questions and topics they would like to discuss.
If you have any questions feel free to contact the organizer
| March 6
|| Shailesh Chandrasekharan |
An Exotic Kosterlitz-Thouless Phase Transition
| March 27
|| Bryon Neufeld |
Sonic Mach Cones Induced by Fast Partons in a
Perturbative Quark-Gluon Plasma
Quantum-Chromodynamics predicts a phase transition in sufficiently hot
and/or dense nuclear matter. It is believed that this new state of matter,
called the quark-gluon plasma (QGP), is accessible in ultra-relativistic
heavy-ion collisions, such as those performed at Relativistic Heavy-Ion
Collider (RHIC). An interesting problem in the study of QGP physics is to
determine the effect of fast partons (i.e. quarks and gluons) on the bulk
behavior of the evolving medium. Recent experimental results supporting the
possible formation of a mach cone make this problem all the more relevant.
I will present the space-time distribution of energy and momentum deposited
by a fast parton traversing a weakly coupled quark-gluon plasma derived by
treating the fast parton as the source of an external color field perturbing
the medium. I use this result as a source term for the linearized
hydrodynamical equations of the medium and show that the solution contains a
sonic Mach cone and a dissipative wake if the parton moves at a supersonic
The Work is described in R.~B.~Neufeld, B.~Muller and J.~Ruppert,
``Sonic Mach Cones Induced by Fast Partons in a Perturbative
Quark-Gluon Plasma,'', arXiv:0802.2254 [hep-ph].
| April 3
Modeling Pions on a Lattice: "A Poor Man's QCD"
| April 17
|| Nasser Demir |
Hadronic Transport Coefficients from microscopic transport model.