2018 CAP Congress / Congrès de l'ACP 2018

QCD Sum-Rules Analysis of Meson-Hybrid Mixing in Vector Heavy Quarkonium (G)

13 Jun 2018, 16:30

15m

SUB 224 (cap. 50) (Dalhousie University)

Oral (Graduate Student) / Orale (Étudiant(e) du 2e ou 3e cycle) Theoretical Physics / Physique théorique (DTP-DPT) W4-3 Advances in Nuclear and Particle Physics Theory (DTP/PPD/DNP) | Progrès en physique nucléaire et en physique des particules théorique (DPT/PPD/DPN)

Speaker

A. Palameta

Description

We use QCD Laplace sum-rule to explore meson-hybrid mixing in vector heavy quarkonium. Our cross-correlator calculation supplements perturbation theory with non-perturbative corrections proportional to the four-dimensional and six-dimensional gluon condensates and the six-dimensional quark condensate. After forming the Laplace sum-rule we use experimentally determined hadronic masses to build several single- and multi-resonance models of the $c\bar{c}$ and $b\bar{b}$ mass spectra. These models and the QCD Laplace sum-rule are then used to probe resonances for meson-hybrid mixing. Observations and results of the analysis will be presented.