Screening of quark charge and mixing effects on transition moments and M1 decay widths of baryons

Abstract

Motivated by the precision measurements of heavy flavor baryon masses, we analyze the modification of quark charge by employing the screening effect inside the baryon. In addition, we calculate the isospin mass splitting up to charmed baryons employing isospin symmetry breaking. Consequently, we obtain the masses, magnetic moments, and transition moments of $J^P={\frac{1}{2}}^{+}$ and ${\frac{3}{2}}^{+}$ baryons to predict radiative decay widths for ${\frac{1}{2}}^{\prime +}\to {\frac{1}{2}}^{+}$ and ${\frac{3}{2}}^{+}\to {\frac{1}{2}}^{(\prime )+}$ transitions. Finally, we include the effects of state mixing in flavor degenerate baryon magnetic and transition moments, as well as M1 transition decay widths.

43 pages, to appear in Phys. Rev. D

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• Spectroscopic survey of higher-lying states of $B_c$ meson family
• Radiative decays and magnetic moments of the predicted $B_c$-like molecules
• New type of doubly charmed molecular pentaquarks containing most strange quarks: Mass spectra, radiative decays, and magnetic moments
• Investigating the M1 radiative decay behaviors and the magnetic moments of the predicted triple-charm molecular-type pentaquarks
• Exploring the mass spectrum and the electromagnetic properties of the possible ${\Xi }_{cc}{K}^{(\ast )}$ and ${\Xi }_{cc}{\bar{K}}^{(\ast )}$ molecules
• Spectroscopic Properties of Double-Strangeness Molecular Tetraquarks
• Precise study of triply charmed baryons ${\Omega }_{ccc}$
• Unveiling the Composition of the Single-Charm Molecular Pentaquarks: Insights from Radiative Decay and Magnetic Moment
• Chiral extrapolation of the doubly charmed baryons magnetic properties
• Mass spectrum and magnetic moments of singly-charmed baryons: a quark-diquark model analysis of ${\Omega }_c(3185{)}^0$ and ${\Omega }_c(3327{)}^0$