High Energy Physics - Lattice
[Submitted on 25 Mar 2015 (v1), last revised 10 Jun 2015 (this version, v2)]
Title:$Ω_c γ\rightarrowΩ_c^\ast$ transition in lattice QCD
View PDFAbstract:We study the electromagnetic $\Omega_c \gamma \rightarrow\Omega_c^\ast$ transition in 2+1 flavor lattice QCD, which gives access to the dominant decay mode of $\Omega_c^\ast$ baryon. The magnetic dipole and the electric quadrupole transition form factors are computed. The magnetic dipole form factor is found to be mainly determined by the strange quark and the electric quadrupole form factor to be negligibly small, in consistency with the quark model. We also evaluate the helicity amplitudes and the decay rate.
Submission history
From: Kadir Utku Can [view email][v1] Wed, 25 Mar 2015 12:45:45 UTC (124 KB)
[v2] Wed, 10 Jun 2015 07:42:43 UTC (46 KB)
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