Jul 22 – 28, 2018
Kellogg Hotel and Conference Center
EST timezone

Gluonic structure of spin-1 meson as it becomes unstable using variationally optimized operators

Jul 23, 2018, 4:10 PM
105 (Kellogg Hotel and Conference Center)


Kellogg Hotel and Conference Center

219 S Harrison Rd, East Lansing, MI 48824
Parallel Hadron Spectroscopy and Interactions Hadron Spectroscopy and Interactions


Dimitra Pefkou (Student at William and Mary)


We present a first calculation of the first moments of gluon GPDs for a vector rho meson as it becomes unstable. We construct three-point functions in the forward limit using ‘optimized’ operators that interpolate a single state as well as a gluonic operator insertion. The two-point correlation functions have been constructed using the ‘distillation’ method. The correlators are calculated in anisotropic lattices and the two spin-independent and one transversity gluon distributions are extracted. We compare the distributions and the resulting gluon momentum fractions between stable and unstable meson states. We discuss finite volume effects and outline how to apply our methods to probe the gluonic structure of hybrid and exotic states.

Primary author

Dimitra Pefkou (Student at William and Mary)


Prof. Phiala Shanahan (Massachusetts Institute of Technology) Raul Briceno (ODU/JLab) Dr Robert Edwards (Jefferson Lab)

Presentation materials