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

2017/03/31 by Hua-Xing Chen, Qiang Mao, Wei Chen +3 · 8 citations
Physics and Astronomy · #Atomic physics #Baryon #Charmed baryons #Ground state #High-Energy Particle Collisions Research #Lambda #Meson #Omega #Particle physics #Particle physics theoretical and experimental studies #Physics #Pseudoscalar #Pseudoscalar meson #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #hep-ex #hep-lat #hep-ph

paper · pdf · doi:10.1103/physrevd.95.094008

published as Phys. Rev. D 95, 094008 (2017) · 44 pages, 9 figures. Version appears in Phys. Rev. D

openalex created_date 2017/04/28 · openalex publication_date 2017/05/19 · arxiv created 2017/05/22 · arxiv updated 2017/05/24 · openalex updated_date 2026/08/05

Abstract

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 flavor 3_F P-wave charmed baryons into ground-state charmed baryons accompanied by a pseudoscalar meson (\ensuremathπ or K) or a vector meson (\ensuremathρ or K^*), and the S-wave decays of the flavor 6_F P-wave charmed baryons into ground-state charmed baryons accompanied by a pseudoscalar meson (\ensuremathπ or K). We study both two-body and three-body decays which are kinematically allowed. We find two mixing solutions from internal \ensuremathρ- and \ensuremathλ-mode excitations, which can well describe both masses and decay properties of the \mathrm\ensuremathΛ_c(2595), \mathrm\ensuremathΛ_c(2625), \mathrm\ensuremathΞ_c(2790) and \mathrm\ensuremathΞ_c(2815). We also discuss the possible interpretations of P-wave charmed baryons for the \mathrm\ensuremathΣ_c(2800), \mathrm\ensuremathΞ_c(2930), \mathrm\ensuremathΞ_c(2980), and the recently observed \mathrm\ensuremathΩ_c(3000), \mathrm\ensuremathΩ_c(3050), \mathrm\ensuremathΩ_c(3066), \mathrm\ensuremathΩ_c(3090), and \mathrm\ensuremathΩ_c(3119).

Citations

• Excited heavy baryon masses to orderΛQCD/mQfrom QCD sum rules
• Masses of excited heavy baryons in the relativistic quark–diquark picture
• Faddeev study of heavy-baryon spectroscopy
• Analysis of the vertices DDV and D*DV with light-cone QCD sum rules
• Vector meson and heavy meson strong interaction
• Strong and electromagnetic decays of theD-wave heavy mesons
• Baryonic currents and their correlators in the heavy quark effective theory
• Excitations of single-beauty hadrons
• Light quark dependence of the Isgur-Wise function from QCD sum rules
• Measurements of [script B]([overline B]⁰ → Λ_c⁺[overline p]) and [script B](B^- → Λ_c⁺[overline p]π^-) and studies of Λ_c⁺π^- resonances
• The hidden-charm pentaquark and tetraquark states
• Strong decays ofDsJ(2317)andDsJ(2460)
• Higher-twist distribution amplitudes of the K meson in QCD
• Bottom baryons
• Review of Multibody Charm Analyses
• 2P-wave charmed baryons from QCD sum rules

Cited by

• Identifying the Ξ_b(6227) and Σ_b(6097) as P-wave bottom baryons of J^P = 3/2^-
• Study of P-wave excitations of observed charmed strange baryons
• New Λb(6072)0 state as a 2S bottom baryon
• Identifying the Λb(6146)0 and Λb(6152)0 as D-Wave Bottom Baryons
• Interpretation of the newly observed Ωc0 resonances
• Ω _c Ω c excited states within a SU(6)_lsf× SU ( 6 ) lsf × HQSS model
• Study of 2S- and 1D-excitations of observed charmed strange baryons
• Strong decay of Λ _c(2940) Λ c ( 2940 ) as a 2P state in the Λ _c Λ c family

Related

• Radiative decays of P-wave charmed baryons in the SU(3) flavor \bf6_F representation
• P-wave single charmed baryons of the SU(3) flavor \bf3_F
• 2P-wave charmed baryons from QCD sum rules
• Quantum numbers of excited Ξ_c^′ and Ω_c baryons and the P-wave Σ_c spectrum
• Radiative decays of the Σ_c, Ξ'_c and Ω_c charmed baryons