Radiative proton capture to second harmonic giant dipole states in ¹³N

Angular distributions have been measured for the radiative proton capture reaction ¹²C(p,ϒ)¹³N at beam energies from 40 to 54 MeV. Measurements were made with the new, large anticoincidence-shielded spectrometer HA GAR at angles from 30° to 150° to the beam direction. Differential and total cross-sections have been calculated from these data, and show evidence for resonant behaviour for the transitions to the ground state, the first excited state, and the unresolved second and third excited states. The total cross-sections for these transitions peak at a proton energy of about 46 MeV which is twice the centroid energy of the Giant Dipole Resonance (GDR) based on the ground state of ¹³N.

Grantor dc:publisher.institution

Department of Physics

Year dc:date.issued

1990

Author dc:creator

• Steyn, Douw

Advisor dc:contributor.advisor

• Aschman, David G

Language dc:language.iso

eng

Handle dc:identifier.uri

http://hdl.handle.net/11427/17288

OAI identifier oai:identifier

oai:open.uct.ac.za:11427/17288