Interpretation of the newly discovered Ω(2012)

Date

2018-7-25

Author

Alıyev, Tahmasıb
Azizi, K.
Sarac, Y.
Sundu, H.

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Very recently, Belle Collaboration reported observation of a narrow state called Omega(2012) with mass 2012.4 +/- 0.7(stat) +/- 0.6(syst) MeV and width 6.4(-2.0)(+2.5)(stat) +/- 1.6(syst) MeV. We calculate the mass and residue of the Omega(2012) state by employing the QCD sum rule method. Comparison of the obtained results with the experimental data allows us to interpret this state as a 1P orbital excitation of the ground state Omega baryon, i.e., with quantum numbers J(P) = 3-\2.

Subject Keywords

Quark-model, Resonance physics, Baryons, QCD

URI

https://hdl.handle.net/11511/28577

Collections

Department of Physics, Article