Role of parity violating Hamiltonian in-non-relativistic quark model for non-leptonic hyperon weak t...

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" Role of parity violating Hamiltonian in-non-relativistic quark model for non-leptonic hyperon weak transitions "
J. Al-Alawi

Document Type	:	Latin Dissertation
Language of Document	:	English
Record Number	:	1112855
Doc. No	:	TLpq230895794
Main Entry	:	J. Al-Alawi
Title & Author	:	Role of parity violating Hamiltonian in-non-relativistic quark model for non-leptonic hyperon weak transitions\ J. Al-Alawi
College	:	King Fahd University of Petroleum and Minerals (Saudi Arabia)
Date	:	1996
student score	:	1996
Degree	:	M.S.
Page No	:	72
Abstract	:	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.
Subject	:	Particle physics
	:	Pure sciences