About
We measured the strange-meson spectrum in the scattering reaction $K^- + p\to K^-\pi^-\pi^+ + p$ with the COMPASS spectrometer at CERN. Using the world's largest sample of this reaction, we performed a comprehensive partial-wave analysis of the mesonic final state. It substantially extends the strange-meson spectrum covering twelve states with masses up to $2.4\, \text{GeV}/c^2$. We observe the first candidate for a crypto-exotic strange meson with $J^P=0^-$ and find $K_3$ and $K_4$ states consistent with predictions for the ground states.
Refreshments will be served at 10:30 .
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The talk
Credits and licence
- Institution
- CERN
- Department
- EP Seminar
- Speaker
- Stefan Wallner
- Year
- 2025
- Language
- English
- Source
- CERN
- Licence
- CERN, as CERN states it. CERN's terms
- Attribution
- © CERN. CERN provides its audiovisual media free of charge for educational and informational use, credited to CERN; this lecture is shown in CERN's own player.
- Who can watch
- CERN gives no rating. Invisible Network shows it to Teens profiles and older, judged from what the source says about it. How courses are placed