Precise measurement of the e⁺e^-→ D_s⁺D_s^- cross sections at center-of-mass energies from threshold to 4.95 GeV

2024/03/22 by BESIII Collaboration, Ablikim, M., М. Н. Ачасов +738
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.2403.14998

openalex publication_date 2024/03/22 · openalex created_date 2024/03/26 · openalex updated_date 2026/08/03

Abstract

Using the e⁺e^- collision data collected with the BESIII detector operating at the BEPCII collider, at center-of-mass energies from the threshold to 4.95~GeV, we present precise measurements of the cross sections for the process e⁺e^-→ D_s⁺D_s^- using a single tag method. The resulting cross section lineshape exhibits several new structures, thereby offering an input for coupled channel analysis and model tests, which are critical to understand vector charmonium-like states with masses between 4 and 5~GeV.

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