Jul 26 – 30, 2021
US/Eastern timezone

Determination of the masses of hybrid charmonium mesons

Jul 28, 2021, 7:00 AM
15m
Oral presentation Hadron Spectroscopy and Interactions Hadron Spectroscopy and Interactions

Speaker

Gaurav Ray (University of Plymouth)

Description

There are several unexplained resonances in the charmonium sector. To this end we present a study of the masses and decay constants of the lightest multiplet of charmonium-like hybrid mesons. We obtain precise measurements through the use of a variational basis and a large number of configurations at three lattice spacings. We use staggered fermion operators and our configurations are generated using the HISQ action with 2+1+1 dynamical flavours. The mixing of the vector hybrid with the $\small J/\Psi$ is examined and bounds on the vector hybrid decay constant are presented.

Primary authors

Gaurav Ray (University of Plymouth) Dr Craig McNeile (Plymouth University)

Presentation materials