Observation of M1 resonance in Pb-206 using a highly linear polarized photon beam

Authors
Ohgaki, H Toyokawa, H Noguchi, T Sugiyama, S Mikado, T Yamada, K Suzuki, R Ohdaira, T Sei, N Yamazaki, T
Citation
H. Ohgaki et al., Observation of M1 resonance in Pb-206 using a highly linear polarized photon beam, NUCL PHYS A, 649, 1999, pp. 73C-76C
Citations number
18
Categorie Soggetti
Physics
Journal title
NUCLEAR PHYSICS A
ISSN journal
03759474 → ACNP
Volume
649
Year of publication
1999
Pages
73C - 76C
Database
ISI
SICI code
0375-9474(19990328)649:<73C:OOMRIP>2.0.ZU;2-Q
Abstract
More than twenty M1 states were discovered in Pb-206 from 6.5 to 8.1 MeV wi th a high-resolution NRF experiment that used a highly linear-polarized pho ton beam generated by laser-Compton backscattering. The total reduced trans ition probability of Sigma B(M1 up arrow) = 17.4 +/- 5.6 mu(N)(2) agreed we ll with QPM calculation (16.1 mu(N)(2)) and previous tagged photon experime nt (19 +/- 2 mu(N)(2)). A fine structure of two bumps at 7.2 and 7.9 MeV wh ich was reproduced reasonably by the QPM calculation was clearly observed i n the isovector M1 strength distribution.