Algebraic Approach in Quantum Chromodynamics and Electroweak Theory

概要

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In the framework of quantum chromodynamics and electroweak theory, a remarkably consistent overall picture of long distance physics emerges from the study of equal-time commutation relations involving the charges of underlying symmetry groups. Two well-tested asymptotic ansatze, asymptotic SU(2)_L as well as flavor symmetries and level-wise realization of asymptotic flavor symmetry in chiral algebras, are used in realizing the commutation relations. Many seemingly unrelated dynamical selection rules, such as the quark-line rule, |ΔI|=1/2 rule, smallness of the isoscalar nucleon anomalous magnetic moments and weak neutral current axial-vector coupling constants, etc., are obtained in the process. Moreover, this is achieved in conjunction with reasonable hadron spectroscopy, a correct value of g_A(0) and others and many consistent interplay among masses, mixing parameters and couplings, including the successful prediction of electroweak theory, m_W=m_Z cosθ_W.
理論物理学刊行会の論文
1985-12-16