B^0_s中間子の粒子・反粒子振動の観測  [in Japanese] Observation of Particle-Antiparticle Oscillations of the B^0_s Meson  [in Japanese]

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Abstract

米国フェルミ国立加速器研究所で陽子反陽子衝突型加速器テバトロンを用いて行われている大型国際共同実験CDFがB^O_S中間子の粒子・反粒子振動の初の観測に成功した.その結果と物理的意義と今後の展望について報告する.

The CDF experiment at the Tevatron proton-antiproton collider at Fermi National Accelerator Laboratory in Batavia, Illinois, USA, has recently observed particle-antiparticle oscillations of the bottom-strange meson, B^O_S, and measured the frequency of the oscillations, Δm_s. It has led to a precise determination of the elements V_<td>/V_<ts> of the Kobayashi-Maskawa matrix, providing a unique test of the Kobayashi-Maskawa theory of CP violation in weak interactions of elementary particles. The observation will also enable studies of CP-violation phenomena using the decay modes of the B^O_S meson that have not been explored previously.

Journal

  • Butsuri

    Butsuri 62(4), 249-254, 2007-04-05

    The Physical Society of Japan (JPS)

References:  16

Keywords

Codes

  • NII Article ID (NAID)
    110006242013
  • NII NACSIS-CAT ID (NCID)
    AN00196952
  • Text Lang
    JPN
  • Article Type
    REV
  • ISSN
    00290181
  • NDL Article ID
    8696769
  • NDL Source Classification
    ZM35(科学技術--物理学)
  • NDL Call No.
    Z15-13
  • Data Source
    CJP  NDL  NII-ELS  IR 
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