Probing new types of 
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 states inspired by the interaction between an 
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-wave charmed baryon and an anticharmed meson in a 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mover><mml:mi>T</mml:mi><mml:mo>¯</mml:mo></mml:mover></mml:math>
 doublet state

Wang, Fu-Lai; Chen, Rui; Liu, Zhanwei; Liu, Xiang

doi:10.1103/physrevc.101.025201

Cited by 42 publications

(41 citation statements)

References 80 publications

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“…By borrowing the experience of the former study of deuteron in the framework of one boson exchange, the cutoff is taken as around 1 GeV [27]. Usually, in realistic calculation [13,33,34,[40][41][42][43][44], setting the order of magnitude of the value of cutoff as O(1) is adopted.…”

Section: Mass Spectrum Analysismentioning

confidence: 99%

Newly observed X(4630): a new charmoniumlike molecule

et al. 2021

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Very recently, the LHCb Collaboration at the Large Hadron Collider at CERN observed new resonance X(4630). The X(4630) is decoded as a charmoniumlike molecule with hidden-strange quantum number well in the one-boson-exchange mechanism. Especially, the study of its hidden-charmed decays explicitly shows the dominant role of $$J/\psi \phi $$ J / ψ ϕ among all allowed hidden-charmed decays of the X(4630), which enforces the conclusion of X(4630) as a charmoniumlike molecule. The discovery of the X(4630) is a crucial step of constructing charmoniumlike molecule zoo.

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Section: Mass Spectrum Analysismentioning

confidence: 99%

Newly observed X(4630): a new charmoniumlike molecule

et al. 2021

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“…As a concrete example one can take the case of the triad P c (4312), P c (4440) and P c (4457), found experimentally in [67,68], with a vast literature devoted to this phenomenon, called pentaquark, see a review in PDG, 2 and for the latest pentaquark papers see [69][70][71][72][73][74][75][76][77][78][79][80][81][82][83][84][85][86].…”

Section: Jhep04(2021)051mentioning

confidence: 99%

Recoupling mechanism for exotic mesons and baryons

Simonov

2021

J. High Energ. Phys.

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The infinite chain of transitions of one pair of mesons (channel I) into another pair of mesons (channel II) can produce bound states and resonances in both channels even if no interactions inside channels exist. These resonances which can occur also in meson-baryon channels are called channel-coupling (CC) resonances. A new mechanism of CC resonances is proposed where transitions occur due to a rearrangement of confining strings inside each channel — the recoupling mechanism. The amplitude of this recoupling mechanism is expressed via overlap integrals of the wave functions of participating mesons (baryons). The explicit calculation with the known wave functions yields the peak at E = 4.12 GeV for the transitions $$ J/\psi +\phi \leftrightarrow {D}_s^{\ast }+{\overline{D}}_s^{\ast } $$ J / ψ + ϕ ↔ D s ∗ + D ¯ s ∗ , which can be associated with χc1 (4140), and a narrow peak at 3.98 GeV with the width 10 MeV for the transitions $$ {D}_s^{-}+{D}_0^{\ast}\leftrightarrow J/\psi +{K}^{\ast -} $$ D s − + D 0 ∗ ↔ J / ψ + K ∗ − , which can be associated with th recently discovered Zcs (3985).

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“…where A n is the antisymmetry operator of the 5-quark system and their expressions are shown in Eqs. (13) to (16). This is needed because we have constructed an antisymmetric wave function for only two quarks of the 3-quark cluster, the remaining (anti-)quarks of the system have been added to the wave function by simply considering the appropriate Clebsch-Gordan coefficients.…”

Section: Theoretical Frameworkmentioning

confidence: 99%

“…A common one is the baryonmeson molecular picture, i.e. Σ cD ( * ) states described within different kind of formalisms such as effective field theories [3,4], heavy quark spin symmetry approach [5,6], phenomenological potential models [7][8][9][10][11][12][13], heavy hadron chiral perturbation theory [14], and QCD sum rules [15,16]. The P c (4312) + and P c (4457) + signals have been studied independently in Refs.…”

Section: Introductionmentioning

confidence: 99%

Doubly charmed pentaquarks

2020

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The LHCb Collaboration, using its full data set from runs 1 and 2, announced in 2019 a surprising update of the hidden-charm pentaquark states Pc(4380) + and Pc(4450) + , observed in 2015. A new state, Pc(4312) + , was clearly seen at lower energies; furthermore, the original Pc(4450) resonance was resolved into two individual states, named the Pc(4440) + and the Pc(4457) + . Motivated by the fact that these new hidden-charm pentaquark states were successfully predicted by our chiral quark model, we extend herein such study to the doubly charmed sector. The analyzed total spin and parity quantum numbers are J P = 1

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Probing new types of Pc states inspired by the interaction between an S -wave charmed baryon and an anticharmed meson in a T¯ doublet state

Cited by 42 publications

References 80 publications

Newly observed X(4630): a new charmoniumlike molecule

Newly observed X(4630): a new charmoniumlike molecule

Recoupling mechanism for exotic mesons and baryons

Doubly charmed pentaquarks

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