Bottom baryons

2007/10/31 by Xiang Liu, Hua-Xing Chen, Yan-Rui Liu +2 · 2 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex #hep-ph #nucl-ex #nucl-th

paper · pdf · doi:10.1103/physrevd.77.014031

published as Phys.Rev.D77:014031,2008 · 8 pages, 5 figures, 3 tables. More discussions and references added

arxiv created 2007/11/08 · openalex publication_date 2008/01/28 · arxiv updated 2009/12/01 · openalex created_date 2020/07/02 · openalex updated_date 2026/07/28

Abstract

Recently the CDF and D0 Collaborations observed several bottom baryons. In this work we perform a systematic study of the masses of bottom baryons up to 1/m_Q in the framework of heavy quark effective field theory using the QCD sum rule approach. The extracted chromo-magnetic splitting between the bottom baryon heavy doublet agrees well with the experimental data.

Citations

• First Observation of Bottom Baryon ∑bStates at CDF
• Improved analysis for the baryon masses to orderΛQCD/mQfrom QCD sum rules
• Systematic uncertainties of hadron parameters obtained with QCD sum rules
• Bdecays in the upsilon expansion

Cited by

• Bottom baryons from a dynamical lattice QCD simulation
• Measurement of theΛb0,Ξb−, andΩb−Baryon Masses