Seminar QUANTUM FIELD THEORY
Date and Time: Wednesday, 16 November 2016, at 11:00 AM
Venue: Blokhintsev Hall (4th floor), Bogoliubov Laboratory of Theoretical Physics
Seminar topic: «Exotic glueball 0— state from QCD Sum Rules»
Speaker: Alexander Pimikov
Abstract:
We present our preliminary results on study of exotic glueball state 0— in QCD sum rules (SR). It was shown that previously used current for this state is doubtful. Therefore we have constructed new current for three gluon 0— state. Using the new current, OPE of two current correlator was calculated up to dimension 8 gluon condensates. The direct instanton contribution was found to be zero. The preliminary estimation for mass of 0— from QCD SR is about ~ 5-7 GeV2.