Ξcγ→Ξc′ transition in lattice QCD

H. Bahtiyar; Kadir Utku Can; G. Erkol; Makoto Oka; Tôru Takahashi

doi:10.1016/j.physletb.2017.06.022

Abstract

We evaluate the electromagnetic Ξcγ→Ξc′ transition on 2+1 flavor lattices corresponding to a pion mass of ∼156 MeV. We extract the magnetic Sachs and Pauli form factors which give the Ξc–Ξc′ transition magnetic moment and the decay widths of Ξc′ baryons. We did not find a signal for the magnetic form factor of the neutral transition Ξc0γ→Ξc′0, which is suppressed by the U-spin flavor symmetry. As a byproduct, we extract the magnetic form factors and the magnetic moments of Ξc and Ξc′ baryons, which give an insight to the dynamics of u/d, s and c quarks having masses at different scales.

Keywords

Physics Baryon Particle physics Magnetic moment Quark Pauli exclusion principle Spin (aerodynamics) Symmetry (geometry) Condensed matter physics Geometry Thermodynamics

Subject Areas

Quantum Chromodynamics and Particle Interactions ·Nuclear and High Energy Physics ·Physical Sciences

Particle physics theoretical and experimental studies ·Nuclear and High Energy Physics ·Physical Sciences

High-Energy Particle Collisions Research ·Nuclear and High Energy Physics ·Physical Sciences

Ξcγ→Ξc′ transition in lattice QCD

Abstract

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