First Measurement of the Giant Monopole and Quadrupole Resonances in a Short-Lived Nucleus: {sup 56}Ni

Journal Article · Fri Feb 01 04:00:00 EST 2008 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.100.042501· OSTI ID:21024652

Monrozeau, C; Khan, E; Blumenfeld, Y; Beaumel, D; Ebran, J P; Frascaria, N; Gupta, D; Marechal, F; Scarpaci, J-A ^[1]; Demonchy, C E ^[2]; Mittig, W; Roussel-Chomaz, P; Gelin, M ^[3]; Caamano, M; Cortina-Gil, D ^[4]; Garg, U ^[5]; Gillibert, A; Keeley, N; Obertelli, A ^[6]

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1. Institut de Physique Nucleaire IN2P3/CNRS, Universite Paris Sud, 91406 Orsay Cedex (France)
2. Department of Physics, Olivier Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE (United Kingdom)
3. GANIL, DSM/CEA, IN2P3/CNRS, BP 5027, 14076 Caen Cedex 5 (France)
4. Universidad Santiago de Compostela, E-15706 Santiago de Compostela (Spain)
5. Physics Department, University of Notre Dame, Notre Dame, Indiana 46556 (United States)
6. CEA/DSM/DAPNIA/SPhN, Saclay, 91191 Gif-sur-Yvette Cedex (France)

The isoscalar giant monopole resonance (GMR) and giant quadrupole resonance (GQR) have been measured in the {sup 56}Ni unstable nucleus by inducing the {sup 56}Ni(d,d{sup '}) reaction at 50A MeV in the Maya active target at the GANIL facility. The GMR and GQR centroids are measured at 19.3{+-}0.5 MeV and 16.2{+-}0.5 MeV, respectively. The corresponding angular distributions are extracted from 3 deg. to 7 deg. A multipole decomposition analysis using distorted wave Born approximation with random phase approximation transition densities shows that both the GMR and the GQR exhaust a large fraction of the energy-weighted sum rule. The demonstration of this new method opens a broad range of giant resonance studies at intermediate-energy radioactive beam facilities.

• OSTI ID: 21024652
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 4 Vol. 100; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
DEUTERON BEAMS
DEUTERON REACTIONS
DEUTERONS
DWBA
GANIL CYCLOTRON
GIANT RESONANCE
MEV RANGE 10-100
MONOPOLES
NICKEL 56
NICKEL 56 TARGET
QUADRUPOLES
RANDOM PHASE APPROXIMATION
SUM RULES