22-26 October 2018
Hotel Intourist Kolomenskoye 4*
Europe/Moscow timezone

Exotic hadrons in the decays of vector bottomonia

26 Oct 2018, 10:50
Alekseevskiy hall (Hotel Intourist Kolomenskoye 4*)

Alekseevskiy hall

Hotel Intourist Kolomenskoye 4*

Kashyrskoye shosse, 39B, Moscow, Russia, 115409
Plenary/section talk Particle physics Particle Physics


Dr. Alexey Nefediev (MEPhI)


Line shapes of the Zb(10610) and Zb(10650) bottomonium-like exotic states produced in the decays of vector bottomonium Upsilon(10860) are analysed. A combined analysis of the existing experimental data in the elastic and inelastic decay channels of Upsilon(10860) is performed within a nonperturbative coupled-channel approach which complies with the requirements of unitarity and analyticity of the multichannel amplitude. The nature of the Zb states is revealed and the parameters of the interaction are extracted from the fit for the data. The heavy quark spin symmetry is employed then to predict the poles position and the line shapes of the spin partners of the Zb states which are expected to be produced in radiative decays of the vector bottomonia Upsilon(10860) and Upsilon(11020).

Primary author

Dr. Alexey Nefediev (MEPhI)

Presentation Materials

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