Abstract
Abstract
Inspired by the LHCb observations of hidden-charm
states, we study their hidden-strange analog
states in both the
and
configurations. We investigate
pentaquark states in the
,
,
,
, and
structures with
and
and
with
and calculate their masses in the framework of QCD sum rules. Our numerical results show that the extracted hadron masses for all the
,
,
,
, and
structures are significantly higher than the
mass threshold, and the masses for
and
are also higher than the threshold of the corresponding hadron; hence, no bound state exists in such channels, which is consistent with the current experimental status.
Funder
Fundamental Research Funds for the Central Universities
National Natural Science Foundation of China
National Key R$\&$D Program of China
Subject
Astronomy and Astrophysics,Instrumentation,Nuclear and High Energy Physics
Cited by
2 articles.
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