Use of the ( e , e prime n ) reaction to study the giant multipole resonances in sup 116 Sn

Journal Article · Sun Mar 31 23:00:00 EST 1991 · Physical Review, C (Nuclear Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevC.43.1677· OSTI ID:5645693

Miskimen, R A; Ammons, E A; Arruda-Neto, J D.T.; Bolme, G O; Cardman, L S; Cole, P L; Deininger, J R; Dolfini, S M; Linzey, A J; Mandeville, J B; Miller, B L; Mueller, P E; Papanicolas, C N; Serdarevic, A; Williamson, S E ^[1]

---

1. Nuclear Physics Laboratory and Department of Physics, University of Illinois at Urbana-Champaign, Champaign, Illinois 61820 (US)

The giant multipole resonances in {sup 116}Sn have been studied using the ({ital e},{ital e}{prime}{ital n}) reaction. Data were taken at effective momentum transfers of 0.37, 0.45, and 0.55 fm{sup {minus}1} and a multipole analysis of the data was performed. The inferred multipole strength functions identify the {ital E}2 and {ital E}0 resonances as distinct peaks at 12.2 and 17.9 MeV, respectively. The energy-weighted sum-rule strengths for the {ital E}2 and {ital E}0 resonances, obtained using a Lorentzian fit to the data, are 34{plus minus}13% and 93{plus minus}37%. When compared with results from alpha scattering and pion scattering the sum-rule strengths exhibit approximate agreement, but the {ital E}0 strength identified in this measurement lies at higher excitation energy, consistent with the trend observed in heavier nuclei. The ({ital e},{ital e}{prime}{ital n}) data are compared with a continuum random phase approximation (RPA) calculation of the {ital E}2 and {ital E}0 strengths, and with an open-shell RPA calculation of the {ital E}2 strength. Both calculations disagree with the data in the region of the {ital E}2 resonance.

• DOE Contract Number: AC02-76ER02853
• OSTI ID: 5645693
• Journal Information: Physical Review, C (Nuclear Physics); (USA), Journal Name: Physical Review, C (Nuclear Physics); (USA) Vol. 43:4; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

651720* -- Nuclear Properties & Reactions
A=90-149
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYONS
CHARGED-PARTICLE REACTIONS
ELECTRON REACTIONS
ELEMENTARY PARTICLES
EQUATIONS
EVEN-EVEN NUCLEI
FERMIONS
FUNCTIONS
GIANT RESONANCE
HADRONS
INELASTIC SCATTERING
INTERMEDIATE MASS NUCLEI
ISOTOPES
LEPTON REACTIONS
NEUTRONS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
RANDOM PHASE APPROXIMATION
RESONANCE
SCATTERING
STABLE ISOTOPES
STRENGTH FUNCTIONS
SUM RULES
TIN 116
TIN ISOTOPES