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Article overview
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Possible $H$-like dibaryon states with heavy quarks | Hongxia Huang
; Jialun Ping
; Fan Wang
; | Date: |
19 Nov 2013 | Abstract: | Possible $H$-like dibaryon states $Lambda_{c}Lambda_{c}$ and
$Lambda_{b}Lambda_{b}$ are investigated within the framework of quark
delocalization color screening model. The results show that the interaction
between two $Lambda_{c}$’s is repulsive, so it cannot be bound state by
itself. However, the strong attraction in $Sigma_{c}Sigma_{c}$ and
$Sigma^{*}_{c}Sigma^{*}_{c}$ channels and the strong channel coupling, due to
the central interaction of one-gluon-exchange and one-pion-exchange, among
$Lambda_{c}Lambda_{c}$, $Sigma_{c}Sigma_{c}$ and
$Sigma^{*}_{c}Sigma^{*}_{c}$ push the energy of system below the threshold of
$Lambda_{c}Lambda_{c}$ by $22$ MeV. The corresponding system
$Lambda_{b}Lambda_{b}$ has the similar properties as that of
$Lambda_{c}Lambda_{c}$ system, and a bound state is also possible in
$Lambda_{b}Lambda_{b}$ system. | Source: | arXiv, 1311.4732 | Services: | Forum | Review | PDF | Favorites |
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