6533b85afe1ef96bd12ba031
RESEARCH PRODUCT
Projectile coulomb excitation with fast radioactive beams
María José García BorgeRainer NeugartO. SorlinThomas NilssonD. BazinR. AnneM. G. Saint-laurentGöran Hugo NymanP. HornshøjD. Guillemaud-muellerS. DognyBjörn JonsonJ.m. CorreP. G. HansenP. JensenM. LewitowiczH. EmlingA.c. MuellerK. Wilhelmsen-rolanderOlof TengbladF. PougheonR. BimbotG. Schriedersubject
PhysicsNuclear and High Energy Physics010308 nuclear & particles physicsProjectileGamma rayPerturbation (astronomy)Coulomb excitation[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]01 natural sciences3. Good healthNuclear physicssymbols.namesake0103 physical sciencessymbolsNuclear fusionAtomic physics010306 general physicsDoppler effectNuclear Physicsdescription
We report a search for gamma rays emanating from Coulomb excitation of fast (30-46 MeV/u) radioactive projectiles He-8, Be-11,Be-12,Be-14 interacting with a lead target. These are clearly identified by their Doppler shift. The 320 keV 1/2(-) --> 1/2(+)gamma transition from Be-11 was observed with a cross-section of 191 +/- 26 mb which is noticeably less than expected from the known lifetime and in the perturbation limit of pure Coulomb excitation. In the other nuclei rather stringent upper limits of 0.01 to 0.2 Weisskopf units, are placed on the hypothetical transition to 1(-) states.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1995-01-01 |