Scalar and vector self-energies of heavy baryons in nuclear medium

Abstract

The in-medium sum rules are employed to calculate the shifts in the mass and residue as well as the scalar and vector self-energies of the heavy ${\Lambda }_Q,{\Sigma }_Q$ and ${\Xi }_Q$ baryons, with Q being $b$ or $c$ quark. The maximum shift in mass due to nuclear matter belongs to the ${\Sigma }_c$ baryon and it is found to be $\Delta m_{{\Sigma }_c}=-936MeV$. In the case of residue, it is obtained that the residue of ${\Sigma }_b$ baryon is maximally affected by the nuclear medium with the shift $\Delta {\lambda }_{{\Sigma }_b}=-0.014Ge{V}^3$. The scalar and vector self-energies are found to be ${\Sigma }_{{\Lambda }_b}^S=653MeV$, ${\Sigma }_{{\Sigma }_b}^S=-614MeV$, ${\Sigma }_{{\Xi }_b}^S=-17MeV$, ${\Sigma }_{{\Lambda }_c}^S=272MeV$, ${\Sigma }_{{\Sigma }_c}^S=-936MeV$, ${\Sigma }_{{\Xi }_c}^S=-5MeV$ and ${\Sigma }_{{\Lambda }_b}^{\nu }=436\pm 148MeV$, ${\Sigma }_{{\Sigma }_b}^{\nu }=382\pm 129MeV$, ${\Sigma }_{{\Xi }_b}^{\nu }=15\pm 5MeV$, ${\Sigma }_{{\Lambda }_c}^{\nu }=151\pm 45MeV$, ${\Sigma }_{{\Sigma }_c}^{\nu }=486\pm 144MeV$ and ${\Sigma }_{{\Xi }_c}^{\nu }=1.391\pm 0.529MeV$.

arXiv comment13 Pages, 11 Figures and 5 Tables

References in corpus (24)

• Big-Bang Nucleosynthesis
• QCD at Low Energies
• Physics Performance Report for PANDA: Strong Interaction Studies with Antiprotons
• QCD Sum Rules and Applications to Nuclear Physics
• Mass modification of D-meson at finite density in QCD sum rule
• Radiative Decays of the Heavy Flavored Baryons in Light Cone QCD Sum Rules
• Nucleon Properties from Unconventional Interpolating Fields
• QCD Sum Rule Calculation of Twist-3 Contributions to Polarized Nucleon Structure Functions
• Four-Quark Condensates in Nucleon QCD Sum Rules
• In-medium mass modifications of the $D_0$ and $B_0$ mesons with the QCD sum rules
• D meson mass increase by restoration of chiral symmetry in nuclear matter
• More about the $B$ and $D$ mesons in nuclear matter
• QCD Sum Rules for $\Sigma$ Hyperons in Nuclear Matter
• New QCD Sum Rules for Nucleons in Nuclear Matter
• Analysis of the ${\Sigma }_Q$ baryons in the nuclear matter with the QCD sum rules
• Analysis of the ${\Lambda }_Q$ baryons in the nuclear matter with the QCD sum rules
• Properties of nucleon in nuclear matter: once more
• In-Medium Modifications of Scalar Charm Mesons in Nuclear Matter
• Analysis of the doubly heavy baryons in the nuclear matter with the QCD sum rules
• Positive and negative parity hyperons in nuclear medium
• Dark matter Search and the Scalar Quark Contents of the Nucleon
• Measurement of spark probability of GEM detector for CBM muon chamber (MUCH)
• Algebraic vacuum limits of QCD condensates from in-medium projections of Lorentz tensors
• Heavy-quark expansion for D and B mesons in nuclear matter

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