5-9 October 2020
Online
Europe/Moscow timezone
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Partial-wave analysis of $J/\psi\to K^+K^-\pi^0$

7 Oct 2020, 13:00
15m
HEP (Zoom)

HEP

Zoom

https://zoom.us/j/98248822832
Oral talk High energy physics High Energy Physics

Speaker

Igor Denisenko (JINR)

Description

The recent results of the partial wave analysis of $J/\psi \to K^+K^-\pi^0$ reaction using $(223.7\pm1.4)\times 10^{6}$ $J/\psi$ decays collected by BESIII collaboration in 2009 will be presented. The high data quality and statistics of the BESIII experiment allowed revealing signals that had not been observed previously in $J/\psi$ decays. The reported results for $K^*(892)^\pm$ and $K^*_2(1430)^\pm$ parameters are currently the most precise. The $K^*_2(1980)^\pm$, $K^*_4(2045)^\pm$ resonances are reported for the first time in $J/\psi$ decays. Two resonance signals in the $K^+K^-$ channel are reported and their interpretation will be discussed. Results also include branching ratios for decays through these intermediate states and a high precision measurement of $Br(J/\psi \to K^+K^-\pi^0)$. The results are significantly different from those presented earlier by BESII and BABAR.

Primary author

Presentation Materials

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