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Measurement of $\Xi^-$ Polarization in the $K^- p → \Xi^- K^+$ + Reaction at 1.8 GeV/c

Year: 2025
Type: conference-paper
Abstract: The polarization of a $\Xi^-$ baryon produced in the p$(K^-,K^+)\Xi^-$ reaction offers critical insights into the double-strangeness exchange mechanism. Since polarization reflects the spin-flip amplitude of the reaction, it helps us describe the reaction mechanism involving high-spin resonances, which are expected to dominate in the forward region. We have measured the cross-section for the $K^-p\to K^+\Xi^-$ reaction and $\Xi^-$ polarization in the forward angular region at 1.8 GeV/c. We present preliminary results from J-PARC E42.
DOI: 10.22323/1.483.0079
Authors: Byungmin Kang, J. K. Ahn, W.S. Jung, Y. Ichikawa, S.W. Choi, M. Fujita, S. Hasegawa, S.H. Hwang, S. Hayakawa, K. Hicks, Y. Ishikawa, S. Kajikawa, K. Kamada, S.H. Kim, T. Kitaoka, J. Y. Lee, T. Morino, F. Oura, H. Sako, T. Sakao, M. Saito, S. Sato, H. Tamura, K. Tanida, T. Takahashi, M. Ukai, S. Wada, T.O. Yamamoto, S.B. Yang
Institutions: Korea University, Japan Atomic Energy Agency, Tohoku University, Advanced Science Research Center, Korea Research Institute of Standards and Science, Ohio University, Kyungpook National University, Seoul National University, High Energy Accelerator Research Organization
Language: English
Open Access status: gold
OpenAlex ID: W4415516627
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