g-2%20??%20????????????%20?%20????????

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g-2 ???????????????????????
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1. ????????????

??

• Dirac ?????????????????g-??
• ???2?????????

1947 Schwinger ?quantum electro dynamics (QED)?
???g-???2?????????????

• Kusch?g2???????0.1??????
• ?????

????, ???(g-2)????????????
??????????????QED????? (Standard
Model)????????????? ????
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2. Quantum Electro Dynamic (QED)

• ??????????????????????
• ??????????????

• ????????????????????

• ??????????????????????
• ???????(Vacuum Polarization)????
• ?????????????????

• ??????????????????????Schwinger?
• Feynman??????????????????????????
• ?????????????

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(No Transcript)
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• Schwinger?QED???
• ?g-2??????(1947)

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• ????g-2 ????????????(Cornel)??a?4?????????????
  ????????????????????????????????a(??????)?????????
  ????

????????
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(No Transcript)
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1. ?????

3.a. ?????
Kusch 1948
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• ????????? Larmor?Cyclotron?????
• ???

• Crane (Michigan) ????????????
• ???????Mott????????.

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1976 Dehmelt (Washington) ????????????
????????????4K????????? ?????1?????????????
?????
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?????????????????????????????????????geonium??????
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????????????? Larmor ????? ?????????????? ????????
???????????????????????????????????????????????? ?
???????????????????????????
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3.b. ?????????

• ????????
• Farley, Picasso at CERN, ??Hughes (Yale) at
  BNL

• t ?? ??????????????
• Theory for muon
  Theory for t

3.c. ??????????(BNL)??????????

• ?????????? (?? 14 m) 3.094 GeV/c ????
• ????????????
• ?????????????? ( 1ppm) ?????
• ??

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• ?????????
• ???????????????????????
• ??????????????????????
• ????????????????????????
• ?????????????????????????
• ????????????
• ?????????????????????????
• ????????

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(No Transcript)
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m-on storage ring at BNL
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(No Transcript)
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(No Transcript)
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2001???????