Possible bound state of the double heavy meson-baryon system

Abstract

We calculate the two-pion exchange potential between a heavy meson and a heavy baryon. We find this potential is as strong as the one-pion exchange potential between two heavy mesons and is enough to bind ${\Lambda }_b-\bar{B}$. Though our result is sensitive to the cut-off, the value of the cut-off is in the reasonable region.

11 pages, 3 figures, replace the old verson which does not correspond to the published version

References in corpus (6)

• Pion Interactions in the X(3872)
• Is X(3872) a molecule?
• Observation of anomalous Upsilon(1S)pi+pi- and Upsilon(2S)pi+pi- production near the Upsilon(5S) resonance
• X(3872) as a molecular DD* state in a potential model
• Possibility of Exotic States in the Upsilon system
• Heavy Baryons and Exotics Spectrum

Cited by in corpus (8)

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• Pentaquark and Tetraquark states
• A survey of heavy-heavy hadronic molecules
• Surveying exotic pentaquarks with the typical $QQqq\bar{q}$ configuration
• Spectrum of the doubly charmed molecular pentaquarks in chiral effective field theory
• Electromagnetic properties of doubly heavy pentaquark states
• Doubly-charmed pentaquark states in a mass splitting model
• The study of doubly charmed pentaquark $cc\bar{q}qq$ with the SU(3) symmetry