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Strange pentaquarks and excited $\Xi$ hyperons in $\Xi_b^- \to J/\psi \Lambda K^-$ final states
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abstract
We comment on the recent evidence by the LHCb Collaboration for a structure in the $J/\psi \Lambda$ final state produced in the decay $\Xi^-_b \to J/\psi \Lambda K^-$, with minimal quark content $c \bar c u d s$.
Forward citations
Cited by 2 Pith papers
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Compactness, mass spectra, and strong stability of singly heavy tetraquarks
A radius-dependent chromoelectric interaction in the MIT bag model predicts that the state T_ncs̄n̄(0+, 2.925) is a compact tetraquark candidate corresponding to the experimentally observed T_c̄s0^a(2900).
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Searching for compact pentaquark state within the bag model framework
A bag-model analysis identifies a compact radius limit of 5.615 GeV^-1 and predicts that nnccbar c pentaquarks fall below it, making them candidates for tightly bound compact states.
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