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AbstractAbstract
[en] Recently, the Belle collaboration measured the ratios of the branching fractions of the newly observed Ω(2012) excited state. They did not observe significant signals for the Ω(2012)→Ξ∗(1530)→πΞ decay, and reported an upper limit for the ratio of the three body decay to the two body decay mode of Ω(2012)→Ξ. In this work, we revisit the newly observed Ω(2012) from the molecular perspective where this resonance appears to be a dynamically generated state with spin-parity 3/2 from the coupled channels interactions of the Ξ∗(1530) and ηΩ in s-wave and Ξ in d-wave. With the model parameters for the d-wave interaction, we show that the ratio of these decay fractions reported recently by the Belle collaboration can be easily accommodated.
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Source
Available from: http://dx.doi.org/10.1140/epjc/s10052-020-7944-4; AID: 361
Record Type
Journal Article
Literature Type
Numerical Data
Journal
European Physical Journal. C, Particles and Fields (Online); ISSN 1434-6052;
; v. 80(5); p. 1-6

Country of publication
AMPLITUDES, BARYONS, DATA, DECAY, DIMENSIONLESS NUMBERS, ELEMENTARY PARTICLES, ENERGY LEVELS, FERMIONS, HADRON-HADRON INTERACTIONS, HADRONS, HYPERONS, INFORMATION, INTERACTIONS, MASS, MESON-BARYON INTERACTIONS, NUMERICAL DATA, PARTIAL WAVES, PARTICLE DECAY, PARTICLE INTERACTIONS, PARTICLE PROPERTIES, SPECTRA, STRANGE PARTICLES
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