Speaker
Fareed Alasiri
(The Ohio State University)
Description
We develop parameterizations of 8 of the lowest Born-Oppenheimer potentials for quarkonium
hybrid mesons as functions of the separation r of the static quark and antiquark sources. The
parameters are determined by fitting results calculated using pure SU(3) lattice gauge theory.
The parameterizations have the correct limiting behavior at small r, where the potentials form
multiplets associated with gluelumps. They have the correct limiting behavior at large r, where
the potentials form multiplets associated with excitations of a relativistic string. There is a narrow
avoided crossing in the small-r region between two potentials with the same Born-Oppenheimer
quantum numbers.
Primary author
Fareed Alasiri
(The Ohio State University)
Co-authors
Dr
Abhishek Mohapatra
(Technical University of Munich)
Eric Braaten
(Ohio State University)
