Two-quasiproton states in /sup 190/Os and /sup 192/Os studied with the (t,. cap alpha. ) reaction

Journal Article · Sun Jul 01 04:00:00 EDT 1979 · Phys. Rev., C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.20.42· OSTI ID:6211880

Bagnell, R D; Tanaka, Y; Sheline, R K; Burke, D G; Sherman, J D

Level structures up to 3000 keV in /sup 190/Os and /sup 192/Os have been studied using the /sup 191/Ir and /sup 193/Ir (t,..cap alpha..) proton pickup reactions with 15 MeV tritons. The ..cap alpha..-particle spectra were obtained with the quadrupole-dipole-dipole-dipole magnetic spectrometer with peak widths of approx.11 keV (full width half maximum). This reaction strongly excites the I,K/sup (/ = 4,4/sup +/ levels at 1162 keV in /sup 190/Os and at 1070 keV in /sup 192/Os, which were previously interpreted as two-phonon ..gamma..-vibrational states. The large two-quasiproton amplitude is reasonably explained by assuming single-phonon hexadecapole vibrations which involve the )5/2 (402), 3/2 (402)) configuration. Many two-quasiproton states are observed in the energy region 2000--3000 keV. The strongest peaks found at an excitation energy of approx.2600 keV in both /sup 190/Os and /sup 192/Os may be the remaining portions of the two-quasiproton )5/2 (402), 3/2 (402))/sub I/,K..pi../sub tsts4,4/+ states.

• Research Organization: Florida State University, Tallahassee, Florida 32306
• OSTI ID: 6211880
• Journal Information: Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 20:1; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

651923* -- Nuclear Properties & Reactions
A=190-219
Experimental-- Energy Levels & Transitions-- (-1987)
651925 -- Nuclear Properties & Reactions
A=190-219
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCELERATORS
ALPHA PARTICLES
ANGULAR DISTRIBUTION
BORN APPROXIMATION
CHARGED PARTICLES
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DIRECT REACTIONS
DISTRIBUTION
DWBA
ELECTROSTATIC ACCELERATORS
ENERGY LEVELS
ENERGY RANGE
EVEN-EVEN NUCLEI
HEAVY NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
IRIDIUM 191 TARGET
IRIDIUM 193 TARGET
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MAGNETIC SPECTROMETERS
MEASURING INSTRUMENTS
MEV RANGE
MEV RANGE 10-100
MINUTES LIVING RADIOISOTOPES
NUCLEAR REACTIONS
NUCLEI
ONE-NUCLEON TRANSFER REACTIONS
OSMIUM 190
OSMIUM 192
OSMIUM ISOTOPES
PICKUP REACTIONS
RADIOISOTOPES
SPECTROMETERS
STABLE ISOTOPES
TARGETS
TRANSFER REACTIONS
TRITON REACTIONS
VAN DE GRAAFF ACCELERATORS