The charged Zc states from rescattering in conventional B decays

International Conference on Particle Physics and Astrophysics

Pakhlov, P.^1 ; Uglov, T.^1

National Research Nuclear University MEPhI, Moscow Engineering Physics Institute, Kashirskoe highway 31, Moscow

115409, Russia^1

关键词: B-decays;    Charmonium;    Intermediate state;    Mass spectra;    Rescattering;    Rescattering process;    Three body;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/675/2/022010/pdf
DOI  :  10.1088/1742-6596/675/2/022010

来源: IOP

【 摘 要 】

In this paper we discuss a possible interpretation of the charged charmonium-like states observed in B decays as a rescattering effect. This approach allows to avoid introduction of exotic hadrons into the theory, while explains the unusual peaking structures 4observed recently in three body B decays. In particular, the peaks in the ψ(2S)π+mass spectrum are ascribed to the rescattering process with kinematics governed by the presence of conventional radial excitations, the Ds(∗)'resonances, in the hidden intermediate state. Our predictions are compared to the LHCb results.