Odd parity bottom-flavored baryon resonances

Garcı́a-Recio, C.; Nieves, J.; Romanets, Olena; Salcedo, L. L.; Tolós, Laura

doi:10.1103/physrevd.87.034032

Cited by 85 publications

(77 citation statements)

References 68 publications

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“…In this review we introduce this method and review their results briefly. However, we shall not discuss its application for open-charm baryons [274,275,276,277,278].…”

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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“…In this review we introduce this method and review their results briefly. However, we shall not discuss its application for open-charm baryons [274,275,276,277,278].…”

Section: Dynamically Generated Resonancementioning

confidence: 99%

The hidden-charm pentaquark and tetraquark states

et al. 2016

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“…The masses and decay constants are taken from Refs. [31,34]. The SU(6) × SUC (2) × UC (1) and SU(3) × SU(2) labels are displayed as well (for simplicity we do not explicitly give the spin of the heavy quark sector, since it is trivially 0 or 1/2.)…”

Section: Dynamically-generated Strange Charm and Beauty λ Statesmentioning

confidence: 99%

“…Then, it is appealing to construct a model for four flavors including all basic hadrons (pseudoscalar and vector mesons, and 1/2 + and 3/2 + baryons) which reduces to the WT interaction in the sector where Goldstone bosons are involved and which incorporates HQSS in the sector where heavy quarks participate [31][32][33][34][35]. This SU(6)×HQSS model is justified in view of the reasonable semi-qualitative outcome of the SU(6) extension [62] and on a formal plausibleness on how the SU(4) WT interaction in the heavy pseudoscalar meson-baryon sectors comes out in the vector-meson exchange picture.…”

Section: Dynamically-generated Strange Charm and Beauty λ Statesmentioning

confidence: 99%

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Compositeness of the strange, charm, and beauty odd parityΛstates

et al. 2015

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We study the dependence on the quark mass of the compositeness of the lowest-lying odd parity hyperon states. Thus, we pay attention to Λ−like states in the strange, charm and beauty, sectors which are dynamically generated using a unitarized meson-baryon model. In the strange sector we use an SU(6) extension of the Weinberg-Tomozawa meson-baryon interaction, and we further implement the heavy-quark spin symmetry to construct the meson-baryon interaction when charmed or beauty hadrons are involved. In the three examined flavor sectors, we obtain two J P = 1/2 − and one J P = 3/2 − Λ states. We find that the Λ states which are bound states (the three Λ b ) or narrow resonances (one Λ(1405) and one Λc(2595)) are well described as molecular states composed of s-wave meson-baryon pairs. The

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“…are also P -wave charmed baryon candidates of the flavor 6 F [7-13]. These charmed baryons are interesting in a theoretical point of view, and many phenomenological methods/models were proposed to study them [14], such as various quark models [15][16][17][18][19][20], various dynamical models [21][22][23][24][25][26], the hyperfine interaction [27,28], and the Lattice QCD [29][30][31], etc [32][33][34][35][36]. Their productions and decay properties were studied in Refs.…”

Section: Introductionmentioning

confidence: 99%

Decay properties of P -wave charmed baryons from light-cone QCD sum rules

et al. 2017

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We study decay properties of the P -wave charmed baryons using the method of light-cone QCD sum rules, including the S-wave decays of the flavor3F P -wave charmed baryons into groundstate charmed baryons accompanied by a pseudoscalar meson (π or K) or a vector meson (ρ or K * ), and the S-wave decays of the flavor 6F P -wave charmed baryons into ground-state charmed baryons accompanied by a pseudoscalar meson (π or K). We study both two-body and three-body decays which are kinematically allowed. We find two mixing solutions from internal ρ-and λ-mode excitations, which can well describe both masses and decay properties of the Λc(2595), Λc(2625), Ξc(2790) and Ξc(2815). We also discuss the possible interpretations of P -wave charmed baryons for the

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Odd parity bottom-flavored baryon resonances

Cited by 85 publications

References 68 publications

The hidden-charm pentaquark and tetraquark states

The hidden-charm pentaquark and tetraquark states

Compositeness of the strange, charm, and beauty odd parityΛstates

Decay properties of P -wave charmed baryons from light-cone QCD sum rules

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