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" Investigations in Modal and Tense Logics with Applications to Problems in Philosophy and Linguistics "
by Dov M. Gabbay.
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Latin Dissertation
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| Language of Document
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English
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| Record Number
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1112855
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| Doc. No
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TLpq230895794
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| Main Entry
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J. Al-Alawi
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| Title & Author
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Role of parity violating Hamiltonian in-non-relativistic quark model for non-leptonic hyperon weak transitions\ J. Al-Alawi
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| College
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King Fahd University of Petroleum and Minerals (Saudi Arabia)
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| Date
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1996
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| student score
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1996
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| Degree
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M.S.
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| Page No
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72
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| Abstract
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A non-relativistic quark model has been used in the calculation of the K-pole contributions to s-wave amplitudes for non-leptonic decays of hyperons, which involve usd\rm\bar K\sp{*0}-\pi\sp0usd and K weak transitions. Such corrections were thought to be one way of removing the long standing discrepancy between s- and p-wave amplitudes obtained in the current-algebra approach to non-leptonic decays of hyperons. Although the calculation of the K contribution on the quark model is found to be negligible, it gives the right order of magnitude of small observed deviations from the usd\DeltausdI = 1/2 rule. A comparison of the observed deviation from usd\DeltausdI = 1/2 rule for s-wave hyperon decay amplitudes with estimated ones is discussed.
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| Subject
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Particle physics
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Pure sciences
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