Study of Doubly Heavy Baryon Spectrum via QCD Sum Rules

2011/04/30 by Liang Tang, Xu-Hao Yuan, Cong-Feng Qiao +1 · 2 citations
Physics and Astronomy · #Baryon #Dimension (graph theory) #Diquark #High-Energy Particle Collisions Research #Operator (biology) #Particle physics theoretical and experimental studies #QCD sum rules #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Spectrum (functional analysis) #hep-ph

paper · pdf · doi:10.1088/0253-6102/57/3/15

published as Commun. Theor. Phys. 57 (2012) 435 · 23 pages, 9 figures, minor corrections in expressions

arxiv created 2012/02/24 · openalex publication_date 2012/03/01 · arxiv updated 2015/05/28 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

In this work, we calculate the mass spectrum of doubly heavy baryons with the diquark model in terms of the QCD sum rules. The interpolating currents are composed of a heavy diquark field and a light quark field. Contributions of the operators up to dimension six are taken into account in the operator product expansion. Within a reasonable error tolerance, our numerical results are compatible with other theoretical predictions. This indicates that the diquark picture reflects the reality and is applicable to the study of doubly heavy baryons.

Citations

• Diquarks andΛb→Λcweak decays
• Heavy quark fragmentation to baryons containing two heavy quarks
• Octet-baryon form factors in the diquark model
• Analysis of Scalar Doubly Heavy Tetraquark States with QCD Sum Rules
• Mass and decay constant of I=1/2 scalar meson in QCD sum rule
• Search for doubly charmed baryonsΞcc+andΞcc++inBABAR
• Doubly heavy baryons in QCD sum rules
• Mass spectra of doubly heavy baryons in the relativistic quark model
• Mass-splittings of doubly heavy baryons in QCD
• Review of Particle Physics
• Confirmation of the doubly charmed baryon Ξcc+(3520) via its decay to pD+K−
• A schematic model of baryons and mesons

Cited by

• Magnetic dipole moments of the spin-(3)/(2) doubly heavy baryons
• Charmed bottom baryon spectroscopy from lattice QCD