We study QQqq and QqQq states as mixed states in QCD sum rules.By calculating the two-point correlation functions of pure states of their corresponding currents,we review the mass and coupling constant predictions of ...We study QQqq and QqQq states as mixed states in QCD sum rules.By calculating the two-point correlation functions of pure states of their corresponding currents,we review the mass and coupling constant predictions of J^(PC)=1^(++),1^(--),and 1^(-+)states.By calculating the two-point mixed correlation functions of QQqq and QqQq currents,we estimate the mass and coupling constants of the corresponding"physical state"that couples to both QQqq and QqQq currents.Our results suggest that for 1^(++)states,the QQqq and QqQq components are more likely to mix,while for 1^(--)and 1^(-+)states,there is less mixing between QQqq and QqQq.Our results suggest the Y series of states have more complicated components.展开更多
基金Supported by NSFC(11175153,11205093)the Natural Sciences and Engineering Research Council of Canada(NSERC)。
文摘We study QQqq and QqQq states as mixed states in QCD sum rules.By calculating the two-point correlation functions of pure states of their corresponding currents,we review the mass and coupling constant predictions of J^(PC)=1^(++),1^(--),and 1^(-+)states.By calculating the two-point mixed correlation functions of QQqq and QqQq currents,we estimate the mass and coupling constants of the corresponding"physical state"that couples to both QQqq and QqQq currents.Our results suggest that for 1^(++)states,the QQqq and QqQq components are more likely to mix,while for 1^(--)and 1^(-+)states,there is less mixing between QQqq and QqQq.Our results suggest the Y series of states have more complicated components.
