Light double-gluon hybrid states from QCD sum rules
نویسندگان
چکیده
We study the double-gluon hybrid states with quark-gluon contents $\bar q gg$ ($q=u/d$) and s gg$. construct twelve currents various quantum numbers, five of which are found to be zero due some internal symmetries between two gluon fields. use rest seven perform QCD sum rule analyses. Especially, masses exotic number $J^{PC} = 2^{+-}$ calculated $M_{|\bar gg;2^{+-}\rangle} 2.26^{+0.20}_{-0.25}$ GeV 2.38^{+0.19}_{-0.25}$ GeV. Their two- three-meson decay patterns also investigated.
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ژورنال
عنوان ژورنال: Physical review
سال: 2023
ISSN: ['0556-2813', '1538-4497', '1089-490X']
DOI: https://doi.org/10.1103/physrevd.107.034010