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The 24th International Spin Symposium

18–22 Oct 2021
Matsue, Shimane Prefecture, Japan
Asia/Tokyo timezone

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Session

Joint BSM - Accelerator - Future Session EU timezone

19 Oct 2021, 18:50
Matsue, Shimane Prefecture, Japan

Matsue, Shimane Prefecture, Japan

Matsue City, Shimane Prefecture, Japan

Conveners

Joint BSM - Accelerator - Future Session EU timezone: Chair: Tsutomu Mibe

  • Hiroki Nagahama (CNS, The University of Tokyo)
  • Shinsuke Kawasaki (KEK)
  • Tsutomu Mibe (IPNS/KEK)
  • Vahid Ranjbar (BNL)
  • Mitsuhiro Fukuda (RCNP, Osaka University)
  • Hanjie Liu (University of Massachusetts)
  • Kenichi Nakano (University of Virginia)
  • Tanja Horn (The Catholic University of America)

Presentation materials

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  1. 72. Spin-related measurements on charmed baryons at Belle
    Kiyoshi Tanida (Japan Atomic Energy Agency)
    19/10/2021, 18:50
    Future facilities and experiments
    Parallel Session Presentation

    Charmed baryons are actively studied in Belle experiment
    and measurements on spin-related phenomena such as
    weak decay asymmetries are obtained recently.
    In this talk, we will report the determination of
    $\Xi_c(2970)$ spin-parity and the measurements of
    decay asymmetries in $\Xi_c$ weak decays.
    In addition, other results on charmed baryon will be
    presented if time allows.

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  2. 154. A new search for time-reversal symmetry-breaking in muon decays
    Sohtaro Kanda (KEK)
    19/10/2021, 19:10
    Future facilities and experiments
    Parallel Session Presentation

    One of the key open questions on the nature of the neutrino is whether it is a Dirac or a Majorana particle. If the neutrino is a Majorana particle, then the interference terms that break the time-reversal symmetry of muon decay appear as the transverse spin polarization of the decay electron [1]. Experiments have been performed at Paul Scherrer Institute to measure the spin polarization of...

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  3. 60. Development of Iron Thin Films for Polarization Analysis of Ultracold Neutrons
    Hiroaki Akatsuka (Nagoya University)
    19/10/2021, 19:30
    Future facilities and experiments
    Parallel Session Presentation

    The TRIUMF Ultra-Cold Advanced Neutron (TUCAN) collaboration aims to measure the neutron electric dipole moment (EDM) with a sensitivity of $10^{-27} e·\rm cm$ with a high-intensity ultracold neutron (UCN) source. Our target accuracy is an order-of-magnitude improvement over the current best experimental limit of the neutron EDM [1]. In the neutron EDM measurement, the Larmor precession...

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  4. 135. Polarization facilities at the JINR accelerator complex
    Victor Fimushkin (Joint Institute for Nuclear Research)
    19/10/2021, 19:50
    Acceleration, Storage and Polarimetry of polarized Beams
    Poster Presentation

    Polarization facilities are being developed at the JINR accelerator complex in the framework of the polarization research program under the NICA project. Those are the polarized deuteron and proton source SPI, SPI low energy and linac output polarimeters, and the absolute polarimeter at the NICA collider. The status of the above facilities and the results achieved are presented.

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