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Schult, R.L. Nasrallah, Nasrallah Fares 2011-07-08T17:47:06Z 2011-07-08T17:47:06Z 10000-01-01 1968 Part I We study the decays K+ -> pi+pio and Ko -> 2pi using the algebra of currents, We show that the decay K+ -> pi+pio is not due to the violation of the selection rule AI = 1/2 caused by the electromagnetic mass .difference [equation] as has been conjectured by some authors but has to be aqcounted for by the I = 3/2 part of the weak Hamiltonian. We also look for effects of CP violation in differences of the decay rates [equation] and [equation] in the theory of Nishijima and Swank and find no evidence for these differences using different from zero. Part 2 We calculate the renormalization of the weak axial-vector coupling constant in the decay [equation] on the basis of the assumption that the symmetry breaking is unimportant at nigh energies. We use the result to show that the equality between vector and axial-vector Cabibbo angle, which is expected to hold in the limit of exact SU(3) symmetry, is preserved by the symmetry breaking Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-07-08T17:47:06Z No. of bitstreams: 1 1968_nasrallah.pdf: 1480359 bytes, checksum: c6ca2afae62e500523695ad64798de4d (MD5) Made available in DSpace on 2011-07-08T17:47:06Z (GMT). No. of bitstreams: 1 1968_nasrallah.pdf: 1480359 bytes, checksum: c6ca2afae62e500523695ad64798de4d (MD5) Previous issue date: 1968 Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Carolyn Mead (cmead2@illinois.edu) on 2011-07-08T17:47:06Z Item is restricted indefinitely. Restriction data tranferred 2014-07-01T11:32:51-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: Thesis Thesis U of I Only 6086180 http://hdl.handle.net/2142/25726 en 1968 Nasrallah Fares Nasrallah algebra of currents weak interactions meson decay cabibbo angles broken SU(3) symmetry Some results of the algebra of currents in weak interactions. Part I: The decays K -> 2pi and K -> 2 pi gamma; Part II: Relation between vector and axial-vector cabibbo angles in broken SU(3) symmetry Dissertation / Thesis text Physics Physics University of Illinois at Urbana-Champaign Dissertation Ph.D.