Establishing low-lying doubly charmed baryons

2017/07/31 by Hua-Xing Chen, Qiang Mao, Wei Chen +2 · 1 citation
Physics and Astronomy · #Baryon #Charmed baryons #Excited state #High-Energy Particle Collisions Research #Nuclear physics #Omega #Order (exchange) #Particle physics #Particle physics theoretical and experimental studies #Physics #QCD sum rules #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum mechanics #State (computer science) #hep-ex #hep-lat #hep-ph

paper · pdf · doi:10.1103/physrevd.96.031501

published as Phys. Rev. D 96, 031501 (2017) · 6 pages, 2 figures, 1 table; A mistake was found when evaluating decay constants of the S-wave charmed baryons. The conclusion is not changed

openalex publication_date 2017/08/17 · arxiv created 2017/12/05 · arxiv updated 2017/12/06 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We systematically study the S-wave doubly charmed baryons using the method of QCD sum rules. Our results suggest that the \mathrm\ensuremathΞ_cc⁺⁺ recently observed by LHCb can be well identified as the S-wave \mathrm\ensuremathΞ_cc state of J^P=1/2⁺. We study its relevant \mathrm\ensuremathΩ_cc state, the mass of which is predicted to be around 3.7 GeV. We also systematically study the P-wave doubly charmed baryons, the masses of which are predicted to be around 4.1 GeV. Especially, there can be several excited doubly charmed baryons in this energy region, and we suggest searching for them in order to study the fine structure of the strong interaction.

Citations

• Estimate of the hadronic production of the doubly charmed baryonΞccin the general-mass variable-flavor-number scheme
• Radiative decays of double heavy baryons in a relativistic constituent three-quark model including hyperfine mixing effects
• Search for doubly charmed baryonsΞcc+andΞcc++inBABAR
• Doubly heavy baryons in QCD sum rules
• Static properties and semileptonic decays of doubly heavy baryons in a nonrelativistic quark model
• Mass spectra of doubly heavy baryons in the relativistic quark model
• Mass-splittings of doubly heavy baryons in QCD
• Effective field theory Lagrangians for baryons with two and three heavy quarks
• The hidden-charm pentaquark and tetraquark states
• A review of the open charm and open bottom systems
• Observation of five new narrow Ω_c⁰ states decaying to Ξ_c⁺ K^-
• Static properties and semileptonic decays of doubly heavy baryons in a nonrelativistic quark model
• Bottom baryons
• Review of Multibody Charm Analyses

Cited by

• Prediction of triple-charm molecular pentaquarks