28th International Scientific Conference of Young Scientists and Specialists (AYSS-2024)

The current status of studying Zc(4200) exotic state

30 Oct 2024, 15:05

15m

4-451 (MLIT)

Oral High Energy Physics High Energy Physics

Speaker

Artem Vasyukov (JINR)

Description

Exotic hadron states with quark content beyond conventional meson and baryon models are natural laboratory to study the properties of strong interaction. Charmonium-like state $Z_c(4200)$ with a potentially tetraquark structure was found as an intermediate state in $B^0\to J/\psi K^{\pm }{\pi }^{\mp }$ decays. The large width of this state leads to significant interference effects with other intermediate states, e.g. $K^{\ast }$ mesons. The nature of this state and even its existence is still controversial. Further theoretical studies require high-precision measurements of the properties of this state using amplitude analysis methods.

In this report, the current theoretical and experimental status of studying $Z_c(4200)$ exotic state together with prospects for further research will be presented.

Presentation materials

AYSS_2024_Vasyukov.pdf

Peer reviewing

Paper

Accepted on 28 Feb 2025 by Veronika Smirnova

Paper files:

• AYSS_2024_PEPAN_Lett.zip
• Copyright_Vasyukov.pdf
• h_Jpsipi_weighted_Zcs_both.pdf
• Bswave_AYSS.pdf
• Bdwave_AYSS.pdf