High-energy Coulomb breakup of proton-dripline nuclei as a tool to study radiative-capture reactions of astrophysical interest
- Gesellschaft fuer Schwerionenforschung, D-64220 Darmstadt (Germany)
High-energy Coulomb dissociation (CD) can be used to investigate the time-reversed process, radiative capture, for unstable nuclei where the direct capture reaction is difficult or impossible to perform. At GSI, we have run a series of CD measurements involving the proton-halo nucleus {sup 8}B which plays a major role in solar-neutrino physics. We could show that for this case CD and direct proton capture yield the same result. Theoretical guidance is necessary, however, to make sure that contributions of different electro-magnetic multipolarities and nuclear dissociation processes are well under control. Recently, we have complemented the LAND/ALADIN experimental apparatus at GSI with new Si microstrip detectors and proton-drift-chambers to continue similar studies with radioactive beams from the fragment separator FRS at GSI. The first case of astrophysical interest to be studied will be the CD of {sup 27}P. Another case will be the 2-proton breakup of {sup 17}Ne to investigate radiative two-proton capture on {sup 15}O, a process which could modify the reaction flow of the rp-process.
- OSTI ID:
- 21039469
- Journal Information:
- AIP Conference Proceedings, Vol. 961, Issue 1; Conference: PROCON 2007: International conference on proton emitting nuclei and related topics, Lisbon (Portugal), 17-23 Jun 2007; Other Information: DOI: 10.1063/1.2827264; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA). S223, S246, and S318 Collaborations; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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