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<pre wrap="">Theory Center Seminar
Wed., March 13, 2013
2:00 p.m. (coffee at 2:45 p.m.)
CEBAF Center, Room L102
Michael Doering
University of Bonn
<b>Excited Hadrons From Data</b>
Mapping out the spectrum of excited hadrons from data is a cornerstone to the
understanding of the strong interaction. With the advent of high-precision photo
and electroproduction data from JLab and other facilities, and the future data
from GlueX, there is finally the chance to come to more conclusive answers
regarding the resonance content. One challenge on this path is to combine the
data of different reactions in a global analysis while respecting unitarity, analyticity,
gauge invariance and other theoretical requirements such as chiral constraints.
I will present recent results of the analysis of photon and pion-induced reactions
that allow for the reliable extraction of resonance poles and residues. Special
emphasis will be placed on future challenges in the analysis of excited mesons
and the interconnections to baryon analysis. Universal principles like coupled-
channel unitarity even apply to the analysis of upcoming data of resonances
decaying in the finite volume of lattice simulations.</pre>
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