Exotic glueball 0— state from QCD Sum Rules
Семинары
Семинар «КВАНТОВАЯ ТЕОРИЯ ПОЛЯ»
Дата и время: среда, 16 ноября 2016 г., в 11:00
Место: Конференц-зал им. Блохинцева (4-й этаж), Лаборатория теоретической физики им. Н.Н. Боголюбова
Тема семинара: «Exotic glueball 0— state from QCD Sum Rules»
Докладчик: Александр Пимиков
Аннотация:
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.