Recent progress and future prospects of hyperon nucleon scattering experiment

Koji Miwa; Takuya Nanamura; Tamao Sakao; J. K. Ahn; Y. Akazawa; T. Aramaki; S. Ashikaga; S. Callier; N. Chiga; N. Chiga; S. W. Choi; H. Ekawa; P. Evtoukhovitch; N. Fujioka; M. Fujita; T. Gogami; T. Harada; S. Hasegawa; S. H. Hayakawa; R. Honda; S. Hoshino; K. Hosomi; M. Ichikawa; Y. Ichikawa; M. Ieiri; M. Ikedai; K. Imai; Y. Ishikawa; S. Ishimoto; W. S. Jung; S. Kajikawa; H. Kanauchi; H. Kanda; T. Kitaoka; B. M. Kang; H. Kawai; S. H. Kim; K. Kobayashi; T. Koike; K. Matsuda; Y. Matsumoto; S. Nagao; R. Nagatomi; Y. Nakada; M. Nakagawa; I. Nakamura; M. Naruki; S. Ozawa; L. Raux; T. G. Rogers; A. Sakaguchi; H. Sako; S. Sato; T. Shiozaki; K. Shirotori; K. N. Suzuki; S. Suzuki; M. Tabata; C. d. L. Taille; H. Takahashi; T. Takahashi; T. N. Takahashi; H. Tamura; M. Tanaka; K. Tanida; Z. Tsamalaidze; M. Ukai; H. Umetsu; S. Wada; T. O. Yamamoto; J. Yoshida; K. Yoshimura

doi:10.1051/epjconf/202227104001

All issues

Volume 271 (2022)

EPJ Web Conf., 271 (2022) 04001

Abstract

Open Access

Issue		EPJ Web Conf. Volume 271, 2022 HYP2022 - 14^th International Conference on Hypernuclear and Strange Particle Physics


Article Number		04001
Number of page(s)		7
Section		Hyperon – Nucleon Scatttering
DOI		https://doi.org/10.1051/epjconf/202227104001
Published online		09 November 2022

EPJ Web of Conferences 271, 04001 (2022)
https://doi.org/10.1051/epjconf/202227104001

Recent progress and future prospects of hyperon nucleon scattering experiment

Koji Miwa¹^,2^*, Takuya Nanamura³^,4, Tamao Sakao¹, J. K. Ahn⁵, Y. Akazawa², T. Aramaki¹, S. Ashikaga³, S. Callier⁶, N. Chiga¹, N. Chiga¹, S. W. Choi³, H. Ekawa⁷, P. Evtoukhovitch⁸, N. Fujioka¹, M. Fujita⁴, T. Gogami³, T. Harada³^,4, S. Hasegawa⁴, S. H. Hayakawa¹, R. Honda², S. Hoshino⁹, K. Hosomi⁴, M. Ichikawa³^,14, Y. Ichikawa⁴, M. Ieiri², M. Ikedai¹, K. Imai⁴, Y. Ishikawa¹, S. Ishimoto², W. S. Jung⁵, S. Kajikawa¹, H. Kanauchi¹, H. Kanda¹⁰, T. Kitaoka¹, B. M. Kang⁵, H. Kawai¹¹, S. H. Kim⁵, K. Kobayashi⁹, T. Koike¹, K. Matsuda¹, Y. Matsumoto¹, S. Nagao¹^**, R. Nagatomi⁹, Y. Nakada⁹, M. Nakagawa⁷, I. Nakamura², M. Naruki³, S. Ozawa¹, L. Raux⁶, T. G. Rogers¹, A. Sakaguchi⁹, H. Sako⁴, S. Sato⁴, T. Shiozaki¹, K. Shirotori¹⁰, K. N. Suzuki³, S. Suzuki¹, M. Tabata¹¹, C. d. L. Taille⁶, H. Takahashi², T. Takahashi², T. N. Takahashi¹⁵, H. Tamura¹^,4, M. Tanaka², K. Tanida⁴, Z. Tsamalaidze⁸^,12, M. Ukai²^,1, H. Umetsu¹, S. Wada¹, T. O. Yamamoto⁴, J. Yoshida¹^*** and K. Yoshimura¹³

^1. Graduate School of Science, Tohoku University
^2. Institute of Particle and Nuclear Studies (IPNS), High Energy Accelerator Research Organization (KEK)
^3. Department of Physics, Kyoto University
^4. Advanced Science Research Center (ASRC), Japan Atomic Energy Agency (JAEA)
^5. Department of Physics, Korea University
^6. OMEGA Ecole Polytechnique-CNRS/IN2P3
^7. High Energy Nuclear Physics Laboratory, RIKEN
⁸ Joint Institute for Nuclear Research (JINR), Dubna
⁹ Department of Physics, Osaka University
¹⁰ Research Center for Nuclear Physics (RCNP), Osaka University
¹¹ Department of Physics, Chiba University
¹² Georgian Technical University (GTU)
¹³ Department of Physics, Okayama University
¹⁴ Meson Science Laboratory, Cluster for Pioneering Research, RIKEN
¹⁵ Nishina Center for Accelerator-based Science, RIKEN

^* e-mail: miwa9@lambda.phys.tohoku.ac.jp
^** Present institution : Graduate Shook of Science, University of Tokyo
^*** Present institution : International Center for Synchrotron Radiation Innovation Smart, Tohoku University

Published online: 9 November 2022

Abstract

A new hyperon-proton scattering experiment, dubbed J-PARC E40, was performed to measure differential cross sections of the Σ⁺p, Σ⁻p elastic scatterings and the Σ⁻p → Λn scattering by identifying a lot of Σ particles in the momentum ranging from 0.4 to 0.8 GeV/c produced by the π^±p → K⁺Σ^± reactions. We successfully measured the differential cross sections of these three channels with a drastically improved accuracy with a fine angular step. These new data will become important experimental constraints to improve the theories of the two-body baryon-baryon interactions. Following this success, we proposed a new experiment to measure the differential cross sections and spin observables by using a highly polarized Λ beam for providing quantitative information on the ΛN interaction. The results of three Σp channels and future prospects of the Λp scattering experiment are described.

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