Projectile Coulomb-Excitation with Fast Radioactive Beams

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.

Bazin, D. (author)
Bimbot, R. (author)
Borge, M. J. G. (author)
Corre, J. M. (author)
Dogny, S. (author)
Emling, H. (author)
Guillemaudmueller, D. (author)
Hansen, P. G. (author)
Hornshoj, P. (author)
Jensen, P. (author)
Jonson, Björn,1941Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)bjn (author)
Lewitowicz, M. (author)
Mueller, A. C. (author)
Neugart, R. (author)
Nilsson, Thomas,1965Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)tnilsson (author)
Nyman, Göran Hugo,1943Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)f2bgn (author)
Pougheon, F. (author)
Saintlaurent, M. G. (author)
Schrieder, G. (author)
Sorlin, O. (author)
Tengblad, Olof,1957 (author)
Wilhelmsen Rolander, Katarina,1962Chalmers tekniska högskola,Chalmers University of Technology (author)
Chalmers tekniska högskola (creator_code:org_t)

In:Zeitschrift fur Physik A Hadrons and Nuclei352:4, s. 397-4011431-58310939-7922

About the subject

NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...; and Subatomic Physic ...

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.