Possible molecular bound state of two charmed baryons

Meguro, Wakafumi; Liu, Yan‐Rui; Oka, M.; Khemchandani, Kanchan; Nagahiro, Hideko; Nawa, Kanabu

doi:10.1063/1.3647411

Cited by 22 publications

(49 citation statements)

References 4 publications

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“…The double charm bound states (siblings of the H dibaryon) are also obtained using the OPE potential model [4]. The binding energies and the D wave probabilities are given in Table 2, which shows again strong effects of the tensor force and significant mixings of the Σ c and Σ * c baryons in the wave functions.…”

Section: λ C λ C Bound Statesmentioning

confidence: 95%

“…On the other hand, our recent studies [3,4] based on the modern effective theory with chiral symmetry and heavy-quark symmetry have shown that it is plausible to have Λ c N and also Λ c Λ c bound states. It is found that a significant attraction is induced by the channel couplings.…”

Section: Charmed Deuteronmentioning

confidence: 99%

“…We further introduce a coupling to the flavor-singlet scalar field σ . 4 ∆ B is the mass difference between the3 and 6 baryons in the heavy quark limit. The coupling constants are determined by the observed strong decay rates of the heavy baryons, the quark model, the chiral multiplet assumption, the vector meson dominance and the QCD sum rule results.…”

Section: )mentioning

confidence: 99%

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Charmed Deuteron and Nuclei

Oka¹,

Liu²,

Meguro³

2013

Proceedings of XTH Quark Confinement and the Hadron Spectrum — PoS(Confinement X)

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Bound states of two baryons with one or two charm quarks, such as Λ c N and Λ c Λ c , are considered in the meson exchange potential model. Effective Lagrangian for light mesons and charmed baryons is constructed with chiral symmetry, heavy quark symmetry and hidden local symmetry. The π, ρ, ω, and the σ (a scalar meson for the correlated two-pion exchange) mesons are the main components. In particular, we point out that the tensor force due to the pion exchange, which induces the coupling of Λ c with Σ c and Σ * c baryons, plays important roles for the binding of the two baryons. We find that both the Λ c N system with spin 0 and 1 and also the Λ c Λ c system with spin 0 will have a bound state. All the bound states have significant mixings of Σ * Speaker.

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Section: λ C λ C Bound Statesmentioning

confidence: 95%

Section: Charmed Deuteronmentioning

confidence: 99%

Section: )mentioning

confidence: 99%

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Charmed Deuteron and Nuclei

Oka¹,

Liu²,

Meguro³

2013

Proceedings of XTH Quark Confinement and the Hadron Spectrum — PoS(Confinement X)

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“…Makoto Oka I have mainly discussed the heavy hadron spectroscopy in this report. It is also interesting to see charm hadron bound states in ordinary matter [22,23,24,25]. Their properties may reveal differences of the QCD dynamics between light and heavy quark sectors.…”

Section: Pos(hadron 2013)001mentioning

confidence: 99%

Opening : New aspects of hadron spectroscopy

Oka¹

2014

Proceedings of XV International Conference on Hadron Spectroscopy — PoS(Hadron 2013)

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“…The existence of molecules made of heavy baryons is a hot topic in nowadays hadronic physics [1][2][3][4][5][6][7]. The observation in 2017 by the LHCb Collaboration of a doubly charmed baryon [8] increased the interest in exotic states containing pairs of charmed quarks.…”

Section: Introductionmentioning

confidence: 99%

Doubly charmed multibaryon systems

Garcilazo

Valcarce

2020

Eur. Phys. J. C

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We study two- and three-baryon systems with two units of charm looking for possible bound states or resonances. All two-baryon interactions are consistently derived from a constituent quark model tuned in the light-flavor hadron phenomenology: spectra and interactions. The presence of the heavy quarks makes the two-body interactions simpler than in the light-flavor sector. Our results show a narrow two-body resonance with quantum numbers $$(I,J^P)=(0,0^+)$$(I,JP)=(0,0+). It is located 6.2 MeV below the $$\Sigma _c\Sigma _c$$ΣcΣc threshold and has a width of 4.7 MeV. The foregoing two-body state contributes to generate a $$N \Sigma _c\Sigma _c$$NΣcΣc resonance with quantum numbers $$(I,J^P)=(1/2,1/2^+)$$(I,JP)=(1/2,1/2+) and a separation energy of 0.2 MeV.

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Possible molecular bound state of two charmed baryons

Cited by 22 publications

References 4 publications

Charmed Deuteron and Nuclei

Charmed Deuteron and Nuclei

Opening : New aspects of hadron spectroscopy

Doubly charmed multibaryon systems

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