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| dc.contributor.advisor | Viollier, Raoul D | en_ZA |
| dc.contributor.author |
Page, Philip R
|
en_ZA |
| dc.date.accessioned | 2016-02-29T12:08:27Z | |
| dc.date.available | 2016-02-29T12:08:27Z | |
| dc.date.issued | 1991 | en_ZA |
| dc.identifier.citation | Page, P. 1991. The ratio gA/gV in cavity QCD. University of Cape Town. | en_ZA |
| dc.identifier.uri | http://hdl.handle.net/11427/17390 | |
| dc.description | Bibliography: pages 96-98. | en_ZA |
| dc.description.abstract | BRS invariant quantum chromodynamics in a spherical cavity is developed using canonical quantization. The weak vector and axial form factors are defined, employing a classical external W- field. The Gell-Mann and Low theorem is extended to include non-diagonal matrix elements and degenerate perturbation theory. The Sucher form of the Gell-Mann and Low theorem is employed to calculate corrections of order GFg² in the weak and strong coupling constants to gA and gv for neutron beta decay. Up and down quarks are assumed massless. The gauge-independent divergences from the loop diagrams cancel each other and can be regularized dimensionally, making renormalization unnecessary. We find that the weak vector and axial current coupling constants are respectively: 9v = 1.0000 gA = 1.0883 + 0.2425 αs', where the preferred value of αs = 2.2 in the M.I.T. bag model gives gA = 1.62. | en_ZA |
| dc.language.iso | eng | en_ZA |
| dc.subject.other | Phiscs | en_ZA |
| dc.subject.other | Theoretical Physics | en_ZA |
| dc.subject.other | Quantum chromodynamics | en_ZA |
| dc.title | The ratio gA/gV in cavity QCD | en_ZA |
| dc.type | Master Thesis | |
| uct.type.publication | Research | en_ZA |
| uct.type.resource | Thesis | en_ZA |
| dc.publisher.institution | University of Cape Town | |
| dc.publisher.faculty | Faculty of Science | en_ZA |
| dc.publisher.department | Department of Physics | en_ZA |
| dc.type.qualificationlevel | Masters | |
| dc.type.qualificationname | MSc | en_ZA |
| uct.type.filetype | Text | |
| uct.type.filetype | Image | |
| dc.identifier.apacitation | Page, P. R. (1991). <i>The ratio gA/gV in cavity QCD</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Physics. Retrieved from http://hdl.handle.net/11427/17390 | en_ZA |
| dc.identifier.chicagocitation | Page, Philip R. <i>"The ratio gA/gV in cavity QCD."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Physics, 1991. http://hdl.handle.net/11427/17390 | en_ZA |
| dc.identifier.vancouvercitation | Page PR. The ratio gA/gV in cavity QCD. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Physics, 1991 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/17390 | en_ZA |
| dc.identifier.ris | TY - Thesis / Dissertation AU - Page, Philip R AB - BRS invariant quantum chromodynamics in a spherical cavity is developed using canonical quantization. The weak vector and axial form factors are defined, employing a classical external W- field. The Gell-Mann and Low theorem is extended to include non-diagonal matrix elements and degenerate perturbation theory. The Sucher form of the Gell-Mann and Low theorem is employed to calculate corrections of order GFg² in the weak and strong coupling constants to gA and gv for neutron beta decay. Up and down quarks are assumed massless. The gauge-independent divergences from the loop diagrams cancel each other and can be regularized dimensionally, making renormalization unnecessary. We find that the weak vector and axial current coupling constants are respectively: 9v = 1.0000 gA = 1.0883 + 0.2425 αs', where the preferred value of αs = 2.2 in the M.I.T. bag model gives gA = 1.62. DA - 1991 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1991 T1 - The ratio gA/gV in cavity QCD TI - The ratio gA/gV in cavity QCD UR - http://hdl.handle.net/11427/17390 ER - | en_ZA |
