Vector Charmonium Meson-Hybrid Mixing: a Field Theoretical Analysis

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Date
2016-07-18Author
Palameta, Alex 1976-
ORCID
0000-0001-8201-4788Type
ThesisDegree Level
MastersMetadata
Show full item recordAbstract
Quantum chromodynamics (QCD) is the quantum field theory describing strong interactions.
Hybrids in QCD, which are bound states consisting of a charm and an anticharm quark
with a constituent gluon, have been theorized for some time. In this thesis we begin to
explore the idea that perhaps these particles exist as quantum mechanical superpositions
of hybrid and pure mesonic states (which are bound states consisting of a quark and an
antiquark). In particular, we will be interested in vector charmonium (charm-anticharm)
meson-hybrid mixing. Here we do a field theoretical analysis of charmonium meson-hybrid mixing in the JPC = 1−− channel; the two point cross-correlator has been calculated to
leading order in the strong coupling (αs). We include the perturbative, four dimensional
and six dimensional condensate contributions. The perturbative contribution was found
to contain non-polynomial divergences which were addressed through the introduction of
operator mixing. The results of this calculation are presented in a form that is ready for a
QCD sum rules analysis.
Degree
Master of Science (M.Sc.)Department
Physics and Engineering PhysicsProgram
PhysicsCommittee
Spiteri, Ray; Moewes, Alexander; Ghezelbash, Masoud; Yao, YansunCopyright Date
July 2016Subject
chromodynamics
hybrid
charmonium
mixing