Charmed baryon spectroscopy using a hadron beam at J-PARC

ORAL

Abstract

One of main subjects in the hadron physics is to understand how hadrons are originated by quarks. Charmed baryon spectroscopy gives us opportunities to understand degree of freedoms to describe the hadron structure. For understanding the charmed baryon structure, it is essential for the diquark correlation which is generated by the isolated two quarks and the charm quark. Properties of the diquark correlation are expected to be emerged as excitation modes in the excited states. We proposed a spectroscopy experiment to measure excited states of charmed baryons at the J-PARC high-momentum beam line. The systematic measurement such as excitation energies, production rates and the decay properties of charmed baryons will be performed by a spectroscopy experiment with a general purpose spectrometry system. In particular, the measurement of hadronic production rates of the π- + p -> Yc*+ + D*- reaction which can excite a particular diquark motion called λ-mode give us information of the collective motion between diquark and charm quark in the excited charmed baryons. From the experimental results of systematic measurements, the diquark correlation which is expectedly an essential degree of freedom to describe the hadron structure can be established.

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Presenters

  • Kotaro Shirotori

    • Research Center for Nuclear Physics, Osaka University

Authors

  • Kotaro Shirotori

    • Research Center for Nuclear Physics, Osaka University

  • Jung-Kun Ahn

    • Korea University

  • Shuhei Ajimura

    • Research Center for Nuclear Physics, Osaka University

  • Takaya Akaishi

    • Osaka University

  • Kazuya Aoki

    • Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization

  • Hidemitsu Asano

    • RIKEN

  • Wen-Chen Chang

    • Academia Sinica

  • Ryotaro Honda

    • Tohoku University
    • Tohoku university

  • Yudai Ichikawa

    • Advanced Science Research Center, Japan Atomic Energy Agency
    • JAEA
    • Japan Atomic Energy Agency

  • Takatsugu Ishikawa

    • Research Center for Electron Photon Science, Tohoku University

  • Yusuke Komatsu

    • Research Center for Nuclear Physics, Osaka University

  • Yue Ma

    • RIKEN

  • Koji Miwa

    • Tohoku University
    • Tohoku university

  • Yoshiyuki Miyachi

    • Yamagata University
    • Faculty of Science, Yamagata University

  • Yuhei Morino

    • Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization

  • Takashi Nakano

    • Research Center for Nuclear Physics, Osaka University

  • Megumi Naruki

    • Department of Physics, Kyoto University
    • Kyoto University

  • Hiroyuki Noumi

    • Research Center for Nuclear Physics, Osaka University
    • RCNP, Osaka University

  • Kyoichiro Ozawa

    • KEK
    • Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization

  • Fuminori Sakuma

    • RIKEN

  • Takahiro Sawada

    • University of Michigan

  • Yorihito Sugaya

    • Research Center for Nuclear Physics, Osaka University

  • Tomonori Takahashi

    • Research Center for Nuclear Physics, Osaka University

  • Kiyoshi Tanida

    • Advanced Science Research Center, Japan Atomic Energy Agency
    • Japan Atomic Energy Agency

  • Natsuki Tomida

    • Research Center for Nuclear Physics, Osaka University