${\Omega }_c\gamma \to {\Omega }_c^{\ast }$ transition in lattice QCD

Abstract

We study the electromagnetic ${\Omega }_c\gamma \to {\Omega }_c^{\ast }$ 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.

8 pages, 1 figure. Added references and discussion

References in corpus (5)

• Big-Bang Nucleosynthesis
• Baryon spectrum with $N_f=2+1+1$ twisted mass fermions
• The nucleon to Delta electromagnetic transition form factors in lattice QCD
• Vector and axial-vector couplings of D and D* mesons in 2+1 flavor Lattice QCD
• Tuning Fermilab Heavy Quarks in 2+1 Flavor Lattice QCD with Application to Hyperfine Splittings

Cited by in corpus (4)

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• Lattice QCD study of the elastic and transition form factors of charmed baryons
• New ${\Lambda }_b(6072{)}^0$ state as a $2S$ bottom baryon
• Determination of the possible quantum numbers for the newly observed ${\Xi }_b(6227{)}^0$ state