[Jlab-seminars] Theory Center Seminar

[Mary Fox]

Theory Center Seminar
Wed., March 21, 2012
CEBAF Center, Room L104
2:00 p.m. (coffee at 1:45 p.m.)


Thomas Cohen
University of Maryland

*The Hagedorn Spectrum: Theory and Practice*
     
Does QCD have a Hagedorn spectrum? That is, does the number
of hadrons grow exponentially with mass for asymptotically
high mass?
     
This talk addresses the question from both an experimental and
theoretical perspective. First, it is shown that while the data appear
to be consistent with the Hagedorn conjecture, there is surprisingly 
little strong evidence for it. The second part of the talk deals with
a theoretical viewpoint; in particular, we present an argument that
the large N_c limit of QCD naturally have a Hagedorn spectrum, provided
that certain technical assumptions are met.

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