Effects of a<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msubsup><mml:mi>N</mml:mi><mml:mrow><mml:mi>c</mml:mi><mml:mover accent="true"><mml:mi>c</mml:mi><mml:mo>¯</mml:mo></mml:mover></mml:mrow><mml:mo>*</mml:mo></mml:msubsup></mml:math>resonance with hidden charm in the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msup><mml:mi>π</mml:mi><mml:mo>−</mml:mo></mml:msup><mml:mi>p</mml:mi><mml:mo>→</mml:mo><mml:msup><mml:mi>D</mml:mi><mml:mo>−</mml:mo></mml:msup><mml:

Garzon, E. J.; Xie, Ju-Jun

doi:10.1103/physrevc.92.035201

Cited by 42 publications

(43 citation statements)

References 43 publications

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“…The hidden-charm baryons are generated dynamically [249,250]. The same/similar method was also used to study the hidden-charm baryons in a series of papers [261,262,263,264,265,266,267], all of which are done before the LHCb's discovery of the P c (4380) and P c (4450) [2]. The same/similar approach was applied to study hiddenbottom baryons [268,269] and their productions [270,271,272,273], some of which will be discussed in Sec.…”

Section: Dynamically Generated Resonancementioning

confidence: 99%

The hidden-charm pentaquark and tetraquark states

et al. 2016

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In the past decade many charmonium-like states were observed experimentally. Especially those charged charmoniumlike Z c states and bottomonium-like Z b states can not be accommodated within the naive quark model. These charged Z c states are good candidates of either the hidden-charm tetraquark states or molecules composed of a pair of charmed mesons. Recently, the LHCb Collaboration discovered two hidden-charm pentaquark states, which are also beyond the quark model. In this work, we review the current experimental progress and investigate various theoretical interpretations of these candidates of the multiquark states. We list the puzzles and theoretical challenges of these models when confronted with the experimental data. We also discuss possible future measurements which may distinguish the theoretical schemes on the underlying structures of the hidden-charm multiquark states.

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Section: Dynamically Generated Resonancementioning

confidence: 99%

The hidden-charm pentaquark and tetraquark states

et al. 2016

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“…It has also been argued that the observed enhancement could be due to kinematical effects or triangular singularities [23][24][25]. Suggestions of different reactions to observe the pentaquarks have been reported [26][27][28][29][30], while explicit decay modes to elucidate their structure have also been studied in [31,32]. Further discussions on the issue and the nature of the two P c states can be found in Refs.…”

Section: Introductionmentioning

confidence: 99%

A hidden-charm $$\varvec{S=-1}$$ S = - 1 pentaquark from the decay of $$\varvec{\varLambda _b}$$ Λ b into $$\varvec{J/\psi \, \eta \varLambda }$$ J / ψ η Λ states

et al. 2016

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The hidden-charm pentaquark P c (4450) observed recently by the LHCb collaboration may be of molecular nature, as advocated by some unitary approaches that also predict pentaquark partners in the strangeness S = −1 sector. In this work we argue that a hidden-charm strange pentaquark could be seen from the decay of the Λ b , just as in the case of the non-strange P c (4450), but looking into the J/ψ ηΛ decay mode and forming the invariant mass spectrum of J/ψΛ pairs. In the model presented here, which assumes a standard weak decay topology and incorporates the hadronization process and final-state interaction effects, we find the J/ψ ηΛ final states to be populated with similar strength as the J/ψ K − p states employed for the observation of the nonstrange pentaquark. This makes the Λ b → J/ψ ηΛ decay to be an interesting process to observe a possible strange partner of the P c (4450). We study the dependence of the J/ψΛ mass spectra on various model ingredients and on the unknown properties of the strange pentaquark.

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“…Prompt production experiments may also be proposed at CERN, KEK, GSI-FAIR, and J-PARC. There have also been theoretical discussions about the pentaquark productions via the photoproduction [83,84], the pion-nucleon collision [85][86][87], and the pp collision [29,30]. The studies from both experimental and theoretical sides are also important to know that the LHCb data shows whether a resonance structure or a kinematic effect as discussed in Refs.…”

Section: Introductionmentioning

confidence: 99%

Hidden-charm and bottom meson-baryon molecules coupled with five-quark states

et al. 2017

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In this paper, we investigate the hidden-charm pentaquarks asD ( * ) Λ c andD ( * ) Σ ( * ) c molecules coupled to the five-quark states. Furthermore, we extend our calculations to the hidden-bottom sector. The coupling to the five-quark states is treated as the short range potential, where the relative strength for the meson-baryon channels is determined by the structure of the five-quark states. We found that resonant and/or bound states appear in both the charm and bottom sectors.The five-quark state potential turned out to be attractive and, for this reason, it plays an important role to produce these states. In the charm sector, we need the five-quark potential in addition to the pion exchange potential in producing bound and resonant states, whereas, in the bottom sector, the pion exchange interaction is strong enough to produce states. Thus, from this investigation, it emerges that the hidden-bottom pentaquarks are more likely to form than their hidden-charm counterparts; for this reason, we suggest that the experimentalists should look for states in the bottom sector.

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Effects of aNcc¯*resonance with hidden charm in theπ−p→D−

Cited by 42 publications

References 43 publications

The hidden-charm pentaquark and tetraquark states

The hidden-charm pentaquark and tetraquark states

A hidden-charm $$\varvec{S=-1}$$ S = - 1 pentaquark from the decay of $$\varvec{\varLambda _b}$$ Λ b into $$\varvec{J/\psi \, \eta \varLambda }$$ J / ψ η Λ states

Hidden-charm and bottom meson-baryon molecules coupled with five-quark states

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