Exotic triple-charm deuteronlike hexaquarks

Chen, Rui; Wang, Fu-Lai; Hosaka, Atsushi; Liu, Xiang

doi:10.1103/physrevd.97.114011

Cited by 51 publications

(41 citation statements)

References 31 publications

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“…This discovery not only complements the baryon family, but also provides us a good opportunity to study the interactions involved in a doubly charmed baryon. Moreover, we can search for possible double-charm, triple-charm, and tetrad-charm multiquark molecules by constructing a doubly charmed baryon and a nucleon system [5], a doubly charmed baryon and a charmed baryon system [6], a doubly charmed baryon and a doubly charmed baryon system [7], and a doubly charmed baryon and a charmed meson system [8]. Here, we also notice another theoretical prediction of triple-charm pentaquarks [9,10].…”

Section: Introductionsupporting

confidence: 52%

Possible triple-charm molecular pentaquarks from ΞccD1/ΞccD2*
Wang
¹
,
Chen
²
,
Liu
³

et al. 2019
Phys. Rev. D
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41
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23
0
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In this work, we explore a systematic investigation on S -wave interactions between a doubly charmed baryon Ξ cc (3621) and a charmed meson in a T doublet (D 1 , D * 2 ). We first analyze the possibility for forming Ξ cc D 1 /Ξ cc D * 2 bound states with the heavy quark spin symmetry. Then, we further perform a dynamical study on the Ξ cc D 1 /Ξ cc D * 2 interactions within a one-boson-exchange model by considering both the S -D wave mixing and coupled channel effect. Finally, our numerical results conform the proposals from the heavy quark spin symmetry analysis: the Ξ cc D 1 systems with I(J P ) = 0(1/2 + , 3/2 + ) and the Ξ cc D * 2 systems with I(J P ) = 0(3/2 + , 5/2 + ) can possibly be loose triple-charm molecular pentaquarks. Meanwhile, we also extend our model to the Ξ ccD1 and Ξ ccD * 2 systems, and our results indicate the isoscalars of Ξ ccD1 and Ξ ccD * 2 can be possible molecular candidates.

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Section: Introductionsupporting

confidence: 52%

Possible triple-charm molecular pentaquarks from ΞccD1/ΞccD2*
Wang
¹
,
Chen
²
,
Liu
³

et al. 2019
Phys. Rev. D
Self Cite
41
0
23
0
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“…The possible bound states composed of the doubly charmed baryons were investigated in Refs. [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Light pseudoscalar meson and doubly charmed baryon scattering lengths with heavy diquark-antiquark symmetry

Meng

Zhu

2019

Phys. Rev. D

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We adopt the heavy baryon chiral perturbation theory (HBChPT) to calculate the scattering lengths of φB ( * ) cc up to O(p 3 ), where φ is the pseudoscalar mesons. The recoil effect and the mass splitting between the spin-1 2 and spin-3 2 doubly charmed baryons are included. In order to give the numerical results, we construct the chiral Lagrangians with heavy diquark-antiquark (HDA) symmetry in a formally covariant approach. Then, we relate the low energy constants (LECs) of the doubly charmed baryons to those of D ( * ) mesons. The LECs for the φD ( * ) scattering are estimated in two scenarios, fitting lattice QCD results and using the resonance saturation model. The chiral convergence of the first scenario is not good enough due to the the large strange quark mass and the presence of the possible bound states, virtual states and resonance. The final results for two scenarios are consistent with each other. The interaction for the [πΞ ( * ) cc ] (1/2) , [KΞ ( * ) cc ] (0) , [KΩ ( * ) cc ] (1/2) , [ηΞ ( * ) cc ] (1/2) , [ηΩ ( * ) cc ] (0) and [KΞ ( * ) cc ] (0) channels are attractive. The most attractive channel [KΞ ( * ) cc ] (0) may help to form the partner states of the D * s0 (2317) (Ds1 (2460)) in the doubly heavy sector.

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“…[18]. We cannot associate any of our states to this one, since the authors in [18] did not consider Ξ ( * ) D ( * ) channels.…”

Section: Common Uv Cutoff Regularizationmentioning

confidence: 99%

Ω_c Excited States: A Molecular Approach with Heavy-Quark Spin Symmetry

Tolós

Pavao

Nieves

2019

Proceedings of the 8th International Conference on Quarks and Nuclear Physics (QNP2018)

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The LHCb Collaboration has recently discovered five excited Ω c states with masses between 3 and 3.1 GeV, four of them corroborated by the Belle Collaboration. We analyse the dynamical generation of these states within a molecular baryon-meson model that is consistent with both chiral and heavyquark spin symmetries. Earlier predictions within this model found five Ω c states with masses below 3 GeV. Thus, in order to study the possible identification of any of these states with the experimental ones in the correct energy region, we explore two different regularization schemes, that is, a modified regularization subtraction method and a cutoff regularization scheme. We find that at least three of the dynamically generated states can be identified with the experimental ones and have spin-parity J = 1/2 − or J = 3/2 −

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Exotic triple-charm deuteronlike hexaquarks

Cited by 51 publications

References 31 publications

Possible triple-charm molecular pentaquarks from ΞccD1/ΞccD2*
Wang
¹
,
Chen
²
,
Liu
³

et al. 2019
Phys. Rev. D
Self Cite
41
0
23
0
View full text Add to dashboard Cite

Possible triple-charm molecular pentaquarks from ΞccD1/ΞccD2*
Wang
¹
,
Chen
²
,
Liu
³

et al. 2019
Phys. Rev. D
Self Cite
41
0
23
0
View full text Add to dashboard Cite

Light pseudoscalar meson and doubly charmed baryon scattering lengths with heavy diquark-antiquark symmetry

Ω_c Excited States: A Molecular Approach with Heavy-Quark Spin Symmetry

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Exotic triple-charm deuteronlike hexaquarks

Cited by 51 publications

References 31 publications

Possible triple-charm molecular pentaquarks from ΞccD1/ΞccD2*Wang1, Chen2, Liu3 et al. 2019Phys. Rev. DSelf Cite410230View full textAdd to dashboardCite

Possible triple-charm molecular pentaquarks from ΞccD1/ΞccD2*Wang1, Chen2, Liu3 et al. 2019Phys. Rev. DSelf Cite410230View full textAdd to dashboardCite

Light pseudoscalar meson and doubly charmed baryon scattering lengths with heavy diquark-antiquark symmetry

Ωc Excited States: A Molecular Approach with Heavy-Quark Spin Symmetry

Contact Info

Product

Resources

About

Possible triple-charm molecular pentaquarks from ΞccD1/ΞccD2*
Wang
¹
,
Chen
²
,
Liu
³

et al. 2019
Phys. Rev. D
Self Cite
41
0
23
0
View full text Add to dashboard Cite

Possible triple-charm molecular pentaquarks from ΞccD1/ΞccD2*
Wang
¹
,
Chen
²
,
Liu
³

et al. 2019
Phys. Rev. D
Self Cite
41
0
23
0
View full text Add to dashboard Cite

Ω_c Excited States: A Molecular Approach with Heavy-Quark Spin Symmetry