Muñoz-Britton, Tomás (2011). The search for the 2+ excitation of the 12C Hoyle state using the 12C(12C,12C[3alpha])12C reaction. University of Birmingham. Ph.D.
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MunozBritton11PhD.pdf
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Abstract
A search was conducted for the 2\(^+_2\) excitation of the 7.65 MeV, 0\(^+_2\), Hoyle state in \(^{12}\)C using the \(^{12}\)C(\(^{12}\)C, \(^{12}\)C[3α]) \(^{12}\)C reaction. The analysis focussed primarily on the 9.7 MeV region in the \(^{12}\)C excitation energy spectrum and no evidence of a resonance was found. Monte Carlo simulations were used to investigate the minimum strength at which a resonance would need to exist in order to be resolved by the experimental setup used. The possibility was also investigated that the 2\(^+_2\) resonance may be observed in the \(^{12}\)C(\(^{12}\)C, \(^{12}\)C[\(^8\)Be*+α]) \(^{12}\)C reaction channel, though the methods contained within this thesis allowed only limited analysis of reaction channels involving non-zero spin states in the intermediate \(^8\)Be nucleus; no evidence of a resonance was found. Further analysis of the 9.6 MeV and 10 MeV regions of the \(^{12}\)C excitation energy spectrum also revealed no clear sign of a 2\(^+_2\) resonance.
| Type of Work: | Thesis (Doctorates > Ph.D.) | ||||||
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| Award Type: | Doctorates > Ph.D. | ||||||
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| College/Faculty: | Colleges (2008 onwards) > College of Engineering & Physical Sciences | ||||||
| School or Department: | School of Physics and Astronomy | ||||||
| Funders: | None/not applicable | ||||||
| Subjects: | Q Science > QC Physics | ||||||
| URI: | http://etheses.bham.ac.uk/id/eprint/3050 |
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