• DocumentCode
    644946
  • Title

    Sub-THz spectroscopy of the ground state hyperfine splitting of positronium

  • Author

    Yamazaki, Tsutomu ; Miyazaki, A. ; Namba, T. ; Asai, Satoshi ; Kobayashi, Takehiko ; Suehara, T. ; Tatematsu, Y. ; Ogawa, Isamu ; Ideharac, T.

  • Author_Institution
    Dept. of Phys., Univ. of Tokyo, Tokyo, Japan
  • fYear
    2013
  • fDate
    1-6 Sept. 2013
  • Firstpage
    1
  • Lastpage
    2
  • Abstract
    We plan to directly measure the hyperfine structure of the ground-state positronium. The hyperfine structure between ortho-positronium and para-positronium is about 203 GHz. We develop a new optical system to accumulate about 20 kW power using a gyrotron and high finesse Fabry-Pérot resonator. We report the current status of our experiment.
  • Keywords
    ground states; hyperfine structure; positronium; terahertz wave spectra; frequency 203 GHz; ground state hyperfine splitting; ground-state positronium; gyrotron; high finesse Fabry-Perot resonator; hyperfine structure; optical system; orthopositronium; parapositronium; power 20 kW; subTHz spectroscopy; Educational institutions; Frequency measurement; Gamma-rays; Gyrotrons; Magnetic field measurement; Optical resonators; Stationary state;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on
  • Conference_Location
    Mainz
  • Type

    conf

  • DOI
    10.1109/IRMMW-THz.2013.6665918
  • Filename
    6665918
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=644946