Heidelberg 2022 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 63: Search for New Particles 4

T 63.2: Vortrag

Mittwoch, 23. März 2022, 16:30–16:45, T-H22

Study of e⁺e⁻ → D_s^±D_s0^*(2317)^∓A process at Belle+BaBar — •Dmytro Meleshko¹, Elisabetta Prencipe^1,2, Jens Soeren Lange¹, and Ashish Thampi² — ¹Justus-Liebig Univ. Giessen — ²IKP-1, Forschungszentrum Juelich

The present analysis is focused on the study of the e⁺e⁻ → D_s^±D_s0^*(2317)^∓A process in the continuum (A = anything else) combining the BaBar and Belle data sets to cure problems of insufficient statistics. The main goal of this work is the analysis of the D_s⁺ D_s0^*(2317)⁻ invariant mass system to look for possible resonant states with c c s s quark content, and cross-section measurement. At the current stage of the analysis, a preliminary study over MC samples and Belle data has already been performed. The acquired results contain intriguing sign of a possible state seen in the invariant mass distribution of the D_s^±D_s0^*(2317)^∓ system. In addition, the analysis is opened to a potential perspective of measuring the D_s0^*(2317)^± width upper limit, which plays an important role in understanding the nature of the D_s0^*(2317)^± itself.