Studying the potential of QQq at finite temperature in a holographic model

Abstract

Using the gauge/gravity duality, we investigate the string breaking and dissolution of two heavy quarks coupled to a light quark at finite temperature. It is found that there exist three configurations of QQq with the increase of separate distance for heavy quarks in the confined phase. Besides, the string breaking occurs at the distance $L_{\mathrm{QQq}}=1.27\mathrm{fm}$($T=0.1\mathrm{GeV}$) for the decay mode $\mathrm{QQq}\to \mathrm{Qqq}+\mathrm{Q}\bar{\mathrm{q}}$. In the deconfined phase, QQq will melt at a certain distance then becomes free quarks. At last, we compare the potential of QQq with that of $\mathrm{Q}\bar{\mathrm{Q}}$ and find $\mathrm{Q}\bar{\mathrm{Q}}$ is more stable than QQq at high temperature.

23 pages, 24 figures

References in corpus (13)

• Linear Confinement and AdS/QCD
• Observation of the doubly charmed baryon ${\Xi }_{cc}^{++}$
• A holographic critical point
• 1/q^2 Corrections and Gauge/String Duality
• The Spatial String Tension, Thermal Phase Transition, and AdS/QCD
• Holography, Heavy-Quark Free Energy, and the QCD Phase Diagram
• Some Thermodynamic Aspects of Pure Glue, Fuzzy Bags and Gauge/String Duality
• Thermodynamics of heavy quarkonium in magnetic field background
• Remarks on Static Three-Quark Potentials, String Breaking and Gauge/String Duality
• String Breaking, Baryons, Medium, and Gauge/String Duality
• Heavy quark potential and QCD beta function from a deformed $Ad{S}_5$ model
• Lattice QCD study of the heavy-heavy-light quark potential
• Heavy-heavy-light quark potential in two approaches

Cited by in corpus (3)

• Three-quark potential at finite temperature and chemical potential
• String breaking and running coupling of $\mathrm{Q}\bar{\mathrm{Q}}$ in a rotating media from holography
• Strings of diquark-quark (QQ)Q baryon before phase transition