Details of Grant 

EPSRC Reference:	GR/R94169/01
Title:	Coulomb effects at large proton excess using fragmentation reactions
Principal Investigator:	Bentley, Professor MA
Other Investigators:
Researcher Co-Investigators:
Project Partners:
Department:	Sch of Chemistry & Physics
Organisation:	Keele University
Scheme:	Standard Research (Pre-FEC)
Starts:	01 April 2003	Ends:	31 March 2005	Value (£):	53,155
EPSRC Research Topic Classifications:	Nuclear Structure
EPSRC Industrial Sector Classifications:	No relevance to Underpinning Sectors
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Summary on Grant Application Form
In our previous work studying high spin isobaric analogue states (IAS) we have been able to establish a remarkable connection between very specific nuclear structure phenomena (such as rotational alignments of nucleons) and the energy shift of excited states due to the Coulomb interaction. This has led to a far more detailed understanding of Coulomb energies, and their evolution as function of spin, than had been previously expected. As a result, we have been able to show that measurement of Coulomb energies can yield very specific and detailed nuclear structure information. So far, studies of this kind have been limited to total values of isospin T=1/2 (odd-A mirror pairs) and, in a few recent examples, T=1 (even-A triplets). In this proposal we aim to push these studies further towards the proton drip-line by performing detailed spectroscopy of nuclei with N=Z-3 in the A=50 region for the first time. The comparison of these T=3/2 states with their IAS in their N=Z+3 mirror partners will enable a quantitative understanding of the evolution of Coulomb effects as a function of spin in nuclei with a large proton excess. The degree to which isospin symmetry holds as the proton drip line is approached remains an open question, and will provide a stringent test of shell-model calculations that can provide quantitative predictions associated with a range of Coulomb phenomena. This work will also provide a test of the highly novel technique proposed to study these nuclei - in-beam gammaray spectroscopy of nuclei formed in the secondary fragmentation of relativisic stable ions.
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Organisation Website:	http://www.keele.ac.uk