Nature of the Omega (2012) through its strong decays

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2018-11-03

Author

Alıyev, Tahmasıb
SARAÇ OYMAK, YASEMİN
SUNDU PAMUK, HAYRİYE

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We extend our previous analysis on the mass of the recently discovered Omega (2012) state by investigation of its strong decays and calculation of its width employing the method of light cone QCD sum rule. Considering two possibilities for the quantum numbers of Omega (2012) state, namely 1P orbital excitation with J(P) = 3/2(-) and 2S radial excitation with J(P) = 3/2(+), we obtain the strong coupling constants defining the Omega (1P/2S) -> Xi K decays. The results of the coupling constants are then used to calculate the decay width corresponding to each possibility. Comparison of the obtained results on the total widths in this work with the experimental value and taking into account the results of our previous mass prediction on the Omega (2012) state, we conclude that this state is 1P orbital excitation of the ground state Omega baryon, whose quantum numbers are J(P) = 3/2(-).

Subject Keywords

Physics and Astronomy (miscellaneous), Engineering (miscellaneous)

URI

https://hdl.handle.net/11511/48588

Journal

EUROPEAN PHYSICAL JOURNAL C

DOI

https://doi.org/10.1140/epjc/s10052-018-6375-y

Collections

Department of Physics, Article

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Citation Formats

T. Alıyev, Y. SARAÇ OYMAK, and H. SUNDU PAMUK, “Nature of the Omega (2012) through its strong decays,” EUROPEAN PHYSICAL JOURNAL C, pp. 0–0, 2018, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/48588.