Bonn 2020 – wissenschaftliches Programm
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HK 3.1: Gruppenbericht
Montag, 30. März 2020, 16:30–17:00, J-HS M
Study of multiple D(s)-resonant states at e+e− colliders. — •Elisabetta Prencipe1, James Ritman1, Jens Soeren Lange2, Ashish Thampi1, Dmytro Meleshko3, and Taisiia Tysak3 — 1Forschungszentrum Juelich, Germany — 2Justus-Liebig Univ. Giessen, Germany — 3Taras Schevchenko National Univ. Kyiv, Ukraine
The systematic study of multiple D and Ds resonances with the BaBar and Belle full data sets will be presented. Too little has been done in this field, due to the limited available statistics.
We want to present preliminary results of our study for the e+e− → Ds− Ds0*(2317)+ X and e+e− → D D D Xc processes, in the continuum. In the first analysis, the possibility to fix a better upper limit of the Ds0*(2317)+ width is shown, and confirmation of its spin parity; in the second, we are looking for hexaquark states, and -in case of signal - it would be the first time for the X(3872) to be observed in a different production mechanism than B meson decays, only.