History of spin and moments

1
7. E D M ?????????
2
1. ???????
????
?????Newton???
3
????
4
2. ??????????(T-violation)
Pauli ?Luders?CPT?????????? ???????????????????
?????????? ??(??????)??????????????(??????)
2.a. ?????????? (Parity-violation)
1956? K????2p?3p?????(t- q???)?????Lee?
Yang???????????????????????????? 1957? C.S. Wu
60Co??????????????? L. Lederman
µ????????????
2.b. ???????
5
2.c. C????CP??
??????????????
??
??
6
2.d. CP??????
???????CP????????
1964 Christenson, Cronin, Fitch, ??Turlay??KL ???
????? 3p????, 2p?????????????????
e 0.23
7
???CP?????KEK,SLAC ? (4S) ? B0 B0 B0
?B0???????????????
8GeV
3.5GeV
8
CP-violation?6?????????????????? (????
???) ??????????????????????????????????
9
1973? ??????????
10
4. Electric Dipole Moment (EDM)
????Hamiltonian H -mB dE
???? H -(-m)(-B)
(-d)E
-mB dE ????P ?
s?????? ??????H???????????? P0 ????
d
d
11
?????????EDM??????????
?????? P lt 10-31 e.cm
12

1. ?????????

Smith, Purcel ??Ramsey ?1951????????????
13
???EDM ??????
14
5.a. EDM (?????)

1. Schiff???

dA Rde SACS TACT
KAQN Leptonic
semi-leptonic hadronic dA ???EDM de ???EDM R
Z3a2??????, R(Cs) 114, R(Tl)-585 CS
scalar-pseudoscalar CT tensor-peeudotensor QN
Schiff ????????????EDM???????? KA QN????
15
?? ???? Hamiltonian
?? EE and E- ????Larmor?????????
wL and wL-??????d ???????????
16
????
????? dA lt 2.1x10-28 e.cm for 199Hg,
then, de lt 9x10-26 e.cm dA lt 2.3x10-24
e.cm for 205Tl, then, de lt 4x10-27 e.cm
(205Tl??????????????????)
EDM?????
3He, 129Xe Chupp (UMICH) Zeeman
maser????? 171Yb ?? (??) ??????????????
17
5.b. UCN(Ultra Cold Neutron)???EDM

• UCN?????
• v 15m/s E 10100 neV
  l 100001000 A

2. ?? 1932 Chadwick ????????
1936 Fermi ???????????????
1940 Fermi ??????????????????????
1946 Fermi ????????????
1959 Zeldovich?UCN??????????????????
???????
1969 Shapiro ?IBR (6kW, pulse
reactor)?????????? UCN?????? 1969
Steyerl 4MW????????????UCN??????
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1974 Steyerl ??????? UCN ?????
1979 Golub????????????superthermal??
??
1985 ?? (KEK) ????? superthermal ????
2000 (NIST) ??????????UCN??????????
19
3. ???He???UCN ??
?? E11K (l8.9A)
EE ????????????????
?????????? Boltzmann factor, e-11K/T
???F(E) ???????, n ?He??, S ????????
20
1998 Ramsey??Pendlebury (ILL, Grenoble) ???
P lt
6.3x10-26 e.cm ???E4.5 kV/cm, B10
mG, T120150 s Hg ?????? (B ? 10nG
rms?????????)
21
????
?????
???
22

• ?????
• a) EDM
• b) ????????
• c) ??