Analysis of the 1S and 2S states of ?<sub> Q </sub> and ?<sub> Q </sub> with QCD sum rules *
نویسندگان
چکیده
Abstract In this article, we study the ground states and first radial excited of flavor antitriplet heavy baryon $\Xi_Q$?> with spin-parity $J^P={1\over 2}^{+}$?> by carrying out operator product expansion up to vacuum condensates dimension $10$?> in a consistent way. We observe for time that higher dimensional play an important role, obtain very stable QCD sum rules variations Borel parameters states. The predicted masses $6.08\pm0.09\,{\rm{GeV}}$?> , $2.78\pm0.08\,{\rm{GeV}}$?> $2.96\pm0.09\,{\rm{GeV}}$?> $\Lambda_b(2{{S}})$?> $\Lambda_c(2{{S}})$?> $\Xi_c(2{{S}})$?> respectively, are excellent agreement experimental data support assigning $\Lambda_b(6072)$?> $\Lambda_c(2765)$?> $\Xi_c(2980/2970)$?> be $\Lambda_b$?> $\Lambda_c$?> $\Xi_c$?> respectively. mass $6.24\pm0.07\,{\rm{GeV}}$?> $\Xi_b(2{{S}})$?> can confirmed using future.
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ژورنال
عنوان ژورنال: Chinese Physics C
سال: 2021
ISSN: ['1674-1137', '2058-6132']
DOI: https://doi.org/10.1088/1674-1137/abc1d3