Analysis of the 1\over2^± flavor antitriplet heavy baryon states with QCD sum rules

2010/01/31 by Zhi-Gang Wang · 1 citation
Chemistry · Physics and Astronomy · #Baryon #Chemistry #Flavor #Hadron #High-Energy Particle Collisions Research #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #QCD sum rules #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #hep-ph

paper · pdf · doi:10.1140/epjc/s10052-010-1365-8

published as Eur.Phys.J.C68:479-486,2010 · 11 pages, 16 figures, published version

arxiv created 2010/06/08 · openalex publication_date 2010/06/29 · arxiv updated 2010/08/09 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

In this article, we study the masses and pole residues of the 1\over 2^± flavor antitriplet heavy baryon states (Λ_c⁺, Ξ_c⁺,Ξ_c⁰) and (Λ_b⁰, Ξ_b⁰,Ξ_b^-) by subtracting the contributions from the corresponding 1\over 2^∓ heavy baryon states with the QCD sum rules, and observe the masses are in good agreement with the experimental data and make reasonable predictions for the unobserved 1\over 2^- bottom baryon states. Once reasonable values of the pole residues λ_Λ and λ_Ξ are obtained, we can take them as basic parameters to study the revelent hadronic processes with the QCD sum rules.

Citations

• Review of Particle Physics
• Physics Performance Report for PANDA: Strong Interaction Studies with Antiprotons
• Excited heavy baryon masses to orderΛQCD/mQfrom QCD sum rules
• Heavy Quark Spectroscopy - Theory Overview
• Excited heavy baryon masses in HQET QCD sum rules
• Baryonic currents and their correlators in the heavy quark effective theory
• Improved analysis for the baryon masses to orderΛQCD/mQfrom QCD sum rules
• Negative-parity nucleon resonance in the QCD sum rule
• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Analysis of the verticesΩQ*ΩQϕand radiative decaysΩQ*→ΩQγ
• Bottom baryons

Cited by

• Semileptonic decays of doubly charmed or bottom baryons to single heavy baryons