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- W4387688032 abstract "While the spectrum of non-strange light mesons is well known, many predicted strange mesons have not yet been observed, and many potentially observed states require further confirmation. Using the $K^-$ component of the hadron beam at the M2 beamline at CERN, we study the strange-meson spectrum with the COMPASS experiment. The flagship channel is the $K^-pi^-pi^+$ final state, for which COMPASS has obtained the world's largest sample. Based on this sample, we have performed the most detailed and comprehensive partial-wave analysis of this final state to date. For example, we observe a clear signal from the well-known $K_2^*(1430)$, and for the first time we study the $K_2(1770)$, $K_2(1820)$, and $K_2(2250)$ in a single analysis. We also find evidence for a supernumerary signal called $K(1630)$, suggesting that this signal is a pseudoscalar exotic strange meson." @default.
- W4387688032 created "2023-10-17" @default.
- W4387688032 creator A5077002665 @default.
- W4387688032 date "2023-10-13" @default.
- W4387688032 modified "2023-10-18" @default.
- W4387688032 title "Strange-Meson Spectroscopy with COMPASS" @default.
- W4387688032 doi "https://doi.org/10.48550/arxiv.2310.09249" @default.
- W4387688032 hasPublicationYear "2023" @default.
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