Analysis of the fully-heavy pentaquark states via the QCD sum rules
نویسندگان
چکیده
In the article, we investigate diquark-diquark-antiquark type fully-heavy pentaquark states with spin-parity JP=12? via QCD sum rules for first time, and obtain masses Mccccc¯=7.93±0.15 GeV Mbbbbb¯=23.91±0.15 GeV. We can search in J/??ccc ??bbb invariant mass spectrum future.
منابع مشابه
A QCD sum rule analysis of the pentaquark
We perform a full QCD sum rule calculation to determine the mass and the parity of the lowest lying pentaquark state. We include operators up to dimension d = 13 in the OPE and also take into account the direct instanton contributions. We find a positive parity state with a mass close to that of the Θ pentaquark. The contribution from operators of dimension d > 5 is instrumental in determining ...
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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 2021
ISSN: ['1873-1562', '0550-3213']
DOI: https://doi.org/10.1016/j.nuclphysb.2021.115579