Abstract
The distribution of M1 strength in Pb208 has been measured between 5.8 and 7.4 MeV with highly polarized tagged photons. 02(M1)=14.6-1.3+1.5 eV corresponding to B(M1)=(10.7-0.9+1.1)N2 was found, and can fully account for the much discussed "missing" M1 in Pb208. When the present result is combined with known 1+ transitions above neutron threshold, an M1 giant resonance emerges at 7.3 MeV, 1 MeV wide, with B(M1)15.6N2. Smaller 1+ resonances are also seen at both 5.85 and 6.24 MeV. The total M1 strength below 6.4 MeV amounts to B(M1)=(1.9-0.4+0.7)N2.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1710-1712 |
| Number of pages | 3 |
| Journal | Physical Review Letters |
| Volume | 61 |
| Issue number | 15 |
| DOIs | |
| State | Published - Jan 1 1988 |
| Externally published | Yes |
ASJC Scopus subject areas
- General Physics and Astronomy
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