Collectivity of dipole bands in [sup 196]Pb

Journal Article · Sun Jan 01 04:00:00 EST 1995 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.51.115· OSTI ID:6697289

Moore, E F; Carpenter, M P; Liang, Y; Janssens, R V.F.; Ahmad, I; Bearden, I G; Daly, P J; Drigert, M W; Fornal, B; Garg, U; Grabowski, Z W; Harrington, H L; Henry, R G; Khoo, T L; Lauritsen, T; Mayer, R H; Nisius, D; Reviol, W; Sferrazza, M ^[1]

---

1. North Carolina State University, Raleigh, North Carolina 27695 (United States) Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708 (United States) Argonne National Laboratory, Argonne, Illinois 60439 (United States) Purdue University, West Lafayette, Indiana 47907 (United States) Idaho National Engineering Laboratory, EG G Idaho Inc., Idaho Falls, Idaho 83415 (United States) University of Notre Dame, Notre Dame, Indiana 46556 (United States)

The lifetimes of states in two of the [Delta][ital I]=1 bands in [sup 196]Pb have been measured using the Doppler shift attenuation method, and a new [Delta][ital I]=1 band has been observed in this nucleus. States in the bands were populated in the reaction [sup 107]Er([sup 30]Si,4[ital n]) at a beam energy of 142 MeV. Individual level lifetimes were extracted from the data by a analysis of the Doppler broadened [gamma]-ray lineshapes. Under the assumption of pure [ital M]1 radiation, average reduced transition strengths [ital B]([ital M]1)[similar to]1.5 W.u. were obtained. The [ital B]([ital M]1) values in both the regular'' and irregular'' bands exhibit similar dependence on spin. The neutron and proton configurations and nature of the collectivity in these bands is discussed.

• DOE Contract Number: FG05-88ER40441; W-31109-ENG-38; AC07-76ID01570; FG02-87ER40346
• OSTI ID: 6697289
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 51:1; ISSN PRVCAN; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

663110* -- General & Average Properties of Nuclei & Nuclear Energy Levels-- (1992-)
663120 -- Nuclear Structure Models & Methods-- (1992-)
663580 -- Nuclear Mass Ranges-- A=190-219-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ATTENUATION
BARYONS
BETA DECAY RADIOISOTOPES
COLLECTIVE MODEL
DIPOLES
DOPPLER BROADENING
DOPPLER EFFECT
ELECTROMAGNETIC RADIATION
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTARY PARTICLES
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
ERBIUM 170
ERBIUM ISOTOPES
EVEN-EVEN NUCLEI
FERMIONS
GAMMA RADIATION
HADRONS
HEAVY NUCLEI
INTERMEDIATE MASS NUCLEI
IONIZING RADIATIONS
ISOTOPES
LEAD 196
LEAD ISOTOPES
LIFETIME
LINE BROADENING
M1-TRANSITIONS
MATHEMATICAL MODELS
MEV RANGE
MEV RANGE 100-1000
MINUTES LIVING RADIOISOTOPES
MULTIPOLE TRANSITIONS
MULTIPOLES
NEUTRONS
NUCLEAR MODELS
NUCLEI
NUCLEONS
RADIATIONS
RADIOISOTOPES
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
SILICON 30 TARGET
STABLE ISOTOPES
TARGETS