Investigation of ΛQ and ΞQ baryons in the heavy quark-light diquark picture

Chen, Bing; Wei, Ke-Wei; Zhang, Ailin

doi:10.1140/epja/i2015-15082-3

Cited by 162 publications

(197 citation statements)

References 64 publications

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“…The most likely spin-parity assignment for Λ c (2940) + is J P = 3/2 − but the other solutions with spins 1/2 to 7/2 cannot be excluded. The J P = 3/2 − assignment for Λ c (2940) + state is consistent with its interpretations as a D * N molecule [16,17,19] or a radial 2P excitation [21].…”

Section: Jhep05(2017)030supporting

confidence: 84%

“…The recent observation of pentaquark states at LHCb [8] has renewed the interest in baryon spectroscopy. c ground state and its orbital excitations from a study based on the nonrelativistic heavy quark-light diquark model [21], along with the observed resonances corresponding to those states [23].…”

Section: Introductionmentioning

confidence: 99%

“…The mass spectrum of the predicted and observed orbitally excited Λ + c states [21] is shown in figure 1. In addition to the ground state Λ + c and to the Λ c (2595) + and Λ c (2625) + states, which are identified as the members of the P -wave doublet, a D-wave doublet with higher mass is predicted.…”

Section: Introductionmentioning

confidence: 99%

“…One of the members of this doublet could be the state known as the Λ c (2880) + , which is measured to have spin and parity J P = 5/2 + [22,23], while no candidate for the other state has been observed yet. Several theoretical studies provide mass predictions for this state and other excited charm baryons [21,[24][25][26][27][28][29]. The BaBar collaboration has previously reported indications of a structure in the D 0 p mass spectrum close to threshold, at a mass around 2.84 GeV, 1 which could be the missing member of the D-wave doublet [30].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Study of the D 0 p amplitude in Λ b 0 → D 0 pπ − decays

Aaij¹,

Adeva²,

Adinolfi³

et al. 2017

J. High Energ. Phys.

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Section: Jhep05(2017)030supporting

confidence: 84%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Study of the D 0 p amplitude in Λ b 0 → D 0 pπ − decays

Aaij¹,

Adeva²,

Adinolfi³

et al. 2017

J. High Energ. Phys.

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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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Observation of a new baryon state in the $$ {\Lambda}_{\mathrm{b}}^0{\pi}^{+}{\pi}^{-} $$ mass spectrum

Aaij¹,

Beteta²,

Ackernley³

et al. 2020

J. High Energ. Phys.

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A new baryon state is observed in the Λ 0 b π + π − mass spectrum with high significance using a data sample of pp collisions, collected with the LHCb detector at centre-of-mass energies √ s = 7, 8 and 13 TeV, corresponding to an integrated luminosity of 9 fb −1. The mass and natural width of the new state are measured to be m = 6072.3 ± 2.9 ± 0.6 ± 0.2 MeV , Γ = 72 ± 11 ± 2 MeV , where the first uncertainty is statistical and the second systematic. The third uncertainty for the mass is due to imprecise knowledge of the Λ 0 b baryon mass. The new state is consistent with the first radial excitation of the Λ 0 b baryon, the Λ b (2S) 0 resonance. Updated measurements of the masses and the upper limits on the natural widths of the previously observed Λ b (5912) 0 and Λ b (5920) 0 states are also reported.

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Investigation of ΛQ and ΞQ baryons in the heavy quark-light diquark picture

Cited by 162 publications

References 64 publications

Study of the D 0 p amplitude in Λ b 0 → D 0 pπ − decays

Study of the D 0 p amplitude in Λ b 0 → D 0 pπ − decays

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

Observation of a new baryon state in the $$ {\Lambda}_{\mathrm{b}}^0{\pi}^{+}{\pi}^{-} $$ mass spectrum

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