Nonrelativistic quark model calculation of the K-P --> [Lambda gamma] and K-P --> [Sigma]0[gamma] branching ratios

Nonrelativistic quark model calculation of the K-P --> [Lambda gamma] and K-P --> [Sigma]0[gamma] branching ratios

The radiative annihilation of K⁻p atoms to Λγ and ∑°γ is investigated using a non-relativistic harmonic oscillator quark model. A nonrelativistic reduction of the first order Feynman diagrams is performed to yield a gauge invariant interaction, which is sandwiched between three quark wave functions....

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Bibliographic Details
Main Author: Murphy, Philip
Language:English
Published: University of British Columbia 2010
Subjects:
Quark models
Branching processes
Online Access:http://hdl.handle.net/2429/30167
id ndltd-UBC-oai-circle.library.ubc.ca-2429-30167
record_format oai_dc
spelling ndltd-UBC-oai-circle.library.ubc.ca-2429-301672018-01-05T17:45:27Z Nonrelativistic quark model calculation of the K-P --> [Lambda gamma] and K-P --> [Sigma]0[gamma] branching ratios Murphy, Philip Quark models Branching processes The radiative annihilation of K⁻p atoms to Λγ and ∑°γ is investigated using a non-relativistic harmonic oscillator quark model. A nonrelativistic reduction of the first order Feynman diagrams is performed to yield a gauge invariant interaction, which is sandwiched between three quark wave functions. Pseudoscalar and pseudovector coupling schemes are used for the strong vertex and the effects of SU(3)flavour breaking is explored. We obtain results which are in agreement with experiment for the ∑°γ but are somewhat high for the Λγ calculation. Science, Faculty of Physics and Astronomy, Department of Graduate 2010-11-29T21:26:29Z 2010-11-29T21:26:29Z 1991 Text Thesis/Dissertation http://hdl.handle.net/2429/30167 eng For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use. University of British Columbia
collection NDLTD
language English
sources NDLTD
topic Quark models
Branching processes
spellingShingle Quark models
Branching processes
Murphy, Philip
Nonrelativistic quark model calculation of the K-P --> [Lambda gamma] and K-P --> [Sigma]0[gamma] branching ratios
description The radiative annihilation of K⁻p atoms to Λγ and ∑°γ is investigated using a non-relativistic harmonic oscillator quark model. A nonrelativistic reduction of the first order Feynman diagrams is performed to yield a gauge invariant interaction, which is sandwiched between three quark wave functions. Pseudoscalar and pseudovector coupling schemes are used for the strong vertex and the effects of SU(3)flavour breaking is explored. We obtain results which are in agreement with experiment for the ∑°γ but are somewhat high for the Λγ calculation. === Science, Faculty of === Physics and Astronomy, Department of === Graduate
author Murphy, Philip
author_facet Murphy, Philip
author_sort Murphy, Philip
title Nonrelativistic quark model calculation of the K-P --> [Lambda gamma] and K-P --> [Sigma]0[gamma] branching ratios
title_short Nonrelativistic quark model calculation of the K-P --> [Lambda gamma] and K-P --> [Sigma]0[gamma] branching ratios
title_full Nonrelativistic quark model calculation of the K-P --> [Lambda gamma] and K-P --> [Sigma]0[gamma] branching ratios
title_fullStr Nonrelativistic quark model calculation of the K-P --> [Lambda gamma] and K-P --> [Sigma]0[gamma] branching ratios
title_full_unstemmed Nonrelativistic quark model calculation of the K-P --> [Lambda gamma] and K-P --> [Sigma]0[gamma] branching ratios
title_sort nonrelativistic quark model calculation of the k-p --> [lambda gamma] and k-p --> [sigma]0[gamma] branching ratios
publisher University of British Columbia
publishDate 2010
url http://hdl.handle.net/2429/30167
work_keys_str_mv AT murphyphilip nonrelativisticquarkmodelcalculationofthekplambdagammaandkpsigma0gammabranchingratios
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