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Isoscalar breathing mode state in /sup 90/Zr and /sup 116/Sn

Journal Article · · Phys. Rev., C; (United States)
; ; ; ;

Beams of 96- and 129-MeV ..cap alpha.. particles were used to excite the giant resonance region in /sup 90/Zr and /sup 116/Sn. From the analysis of data obtained from 0/sup 0/ to 8/sup 0/, two distinct components of the giant resonance peak were resolved in each nucleus. The upper component is well described by a distorted-wave Born-approximation calculation for L=0 exhausting 90% (180%) of the energy weighted sum rule and has E/sub x/=16.2 MeV (15.6 MeV), GAMMA=3.5 MeV (4.1 MeV) for /sup 90/Zr (/sup 116/Sn). The nuclear incompressibility is extracted from these data and from that available for /sup 144/Sm and /sup 208/Pb. The lower component is the giant quadrupole resonance exhausting 66% (84%) of the isoscalar quadrupole sum rule and has E/sub x/=14.0 MeV (13.2 MeV), GAMMA=3.4 MeV (3.3 MeV) for /sup 90/Zr (/sup 116/Sn).

Research Organization:
Cyclotron Institute, Texas AM University, College Station, Texas 77843
OSTI ID:
5409204
Journal Information:
Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 21:4; ISSN PRVCA
Country of Publication:
United States
Language:
English

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Related Subjects

651723* -- Nuclear Properties & Reactions
A=90-149
Experimental-- Energy Levels & Transitions-- (-1987)
651725 -- Nuclear Properties & Reactions
A=90-149
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA REACTIONS
ALPHA SPECTRA
ANGULAR DISTRIBUTION
BORN APPROXIMATION
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DISTRIBUTION
DWBA
ENERGY RANGE
EQUATIONS
EVEN-EVEN NUCLEI
GIANT RESONANCE
INELASTIC SCATTERING
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MATTER
MEASURING INSTRUMENTS
MEV RANGE
MEV RANGE 10-100
MEV RANGE 100-1000
NUCLEAR MATTER
NUCLEAR REACTIONS
NUCLEI
PROPORTIONAL COUNTERS
QUADRUPOLE MOMENTS
RADIATION DETECTORS
RADIOISOTOPES
RESONANCE
SCATTERING
SPECTRA
STABLE ISOTOPES
SUM RULES
TARGETS
TIME-OF-FLIGHT METHOD
TIN 116
TIN 116 TARGET
TIN ISOTOPES
ZIRCONIUM 90
ZIRCONIUM 90 TARGET
ZIRCONIUM ISOTOPES