August 28, 2016 to September 4, 2016
Europe/Athens timezone

On the description of the exotic states within QCD sum rules

Aug 30, 2016, 5:50 PM
20m
Aristotelis II (Makedonia Palace)

Aristotelis II

Makedonia Palace

Section B: Light Quarks Section B

Speaker

Dmitri Melikhov (HEPHY)

Description

The method of QCD sum rules is based on the extraction of hadron observables (decay constants, form factors, etc) from the correlation functions of the appropriate quark currents. Because of the properties of the correlation functions containing the exotic multiquark (i.e. four-quark, five-quark) currents, the contribution of the exotic multiquark hadrons to these correlation functions emerge only at order alpha_s and higher; the leading-order diagrams do not contain the contributions of the exotic multiquark states. Respectively, for the analysis of the exotic-states properties within QCD sum rules, the knowledge of the radiative corrections to the correlations functions is mandatory.

Primary author

Co-author

Wolfgang LUCHA (Austrian Academy of Sciences)

Presentation materials