Use this URL to cite or link to this record in EThOS: http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.583196
Title: Study of excited states in ¹⁴C via the ⁴He(¹⁰Be,α)¹⁰Be resonance scattering reaction
Author: Malcolm, Jonathan
Awarding Body: University of Birmingham
Current Institution: University of Birmingham
Date of Award: 2013
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Abstract:
A study has been made of the $$^4$$He($$^1$$$$^0$$Be$$\alpha$$)$$^1$$$$^0$$Be resonant scattering reaction to explore possible molecular rotation bands in $$^1$$$$^4$$C. The experiment was performed at a range of beam energies from 25 to 42 MeV. The recoil particles from the reaction were detected by a set of surface barrier zero degree monitors and two 'lampshade' arrays of silicon strip detectors. A range of new resonances were discovered in the excitation function of $$^1$$$$^4$$C between 13 and 24 MeV. Properties of some of these states were identified using angular distribution methods and monte carlo simulations. An R-matrix analysis was performed on the excitation function to provide additional information about the resonances. Three states, at excitation energies of E$$_x$$ = 18.8, 19.76 and 20.66 MeV, have been measured and their spins and parities positively determined by angular correlation to be 5$$^-$$, 5$$^-$$ and 6$$^+$$ respectively. Two additional states at energies E$$_x$$ = 17.5 and 17.98 MeV have had their spins and parities identified by R-matrix analysis to be 3$$^-$$ and 4$$^+$$ respectively.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID: uk.bl.ethos.583196  DOI: Not available
Keywords: Q Science (General) ; QC Physics
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