Heavy Hybrid Meson Masses derived from QCD sum rules in Heavy Quark Effective Theory
نویسنده
چکیده
QCD sum rules are derived for the heavy hybrid mesons with one heavy quark and JPC = 1−+, 0++, 1+−, 0−− in the leading order of heavy quark effective theory. We obatin the binding energy ΛH = (1.1±0.1), (1.51±0.10), (1.28±0.10), (1.5±0.1) GeV and decay constant fH = (0.205± 0.02), (0.415 ± 0.04), (0.217 ± 0.02), (0.317 ± 0.03)GeV 7 2 for 1−+, 0++, 1+−, 0−− respectively when the light quark is up or down quark. In all the four channels the binding energy is 0.13 GeV larger when the light quark is strange quark. PACS number: 12.39.Hg, 12.39.Mk, 12.38.Lg
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تاریخ انتشار 1998