Results 321 to 330 of about 740,028 (360)
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Annals of Physics, 1964
We assume that a component of the F-spin current is utilized as part or all of the vector weak current for strongly interacting particles. Likewise we assume that the same component of an axial vector current octet is part or all of the axial vector weak current.
Gell-Mann, Murray, Ne'eman, Yuval
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We assume that a component of the F-spin current is utilized as part or all of the vector weak current for strongly interacting particles. Likewise we assume that the same component of an axial vector current octet is part or all of the axial vector weak current.
Gell-Mann, Murray, Ne'eman, Yuval
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CURRENT DECOMPOSITIONS AND CURRENT ALGEBRA
Modern Physics Letters A, 1991Currents are decomposed into the sum of first- and second-class currents under the breaking of isospin symmetry. The above decompositions are then used to discuss the decay r → ηπντ and the current algebra.
Yeou-Wei Yang +2 more
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Automorphisms of Extended Current Algebras
Proceedings of the American Mathematical Society, 1989We construct a (noncentral) extension of current algebras and study the adjoint action induced by the current group.
PIAZZA, Paolo, WU S.
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On the connection between current-density algebras and charge-current algebras
Il Nuovo Cimento A, 1969The equal-time limit of commutator matrix elements of charge densities is calculated hy means of structures which follow from general principles of quantum field theory, especially locality and divergence conditions. It is shown that these structures imply the occurnence of at least three gradient terms.
U. Völkel, A. H. Völkel
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Reports on Mathematical Physics, 1984
Abstract We introduce the field algebra Σ D (M;n⊗n g ) associated with the current algebra D r(M; g ) for the Lie algebra g over physical space M. The Heisenberg magnet model is generalized to this continuum. It is shown that the Hamiltonian can be given meaning as implementing a derivation of the field algebra in certain ...
J. Alcantara, D.A. Dubin
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Abstract We introduce the field algebra Σ D (M;n⊗n g ) associated with the current algebra D r(M; g ) for the Lie algebra g over physical space M. The Heisenberg magnet model is generalized to this continuum. It is shown that the Hamiltonian can be given meaning as implementing a derivation of the field algebra in certain ...
J. Alcantara, D.A. Dubin
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Superconvergence and current algebra
Annals of Physics, 1967Abstract We consider some general features of the superconvergence sum rules and of their saturation. We treat also the problem of the structure of current algebra sum rules, discussing the presence of non Regge asymptotic behavior. Finally, we discuss current algebra and superconvergence sum rules for higher-spin targets, and their mutual ...
C Rossetti +3 more
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The Lie algebra of derivations of a current Lie algebra
Communications in Algebra, 2019Let K be a field of characteristic zero, g be a finite dimensional K-Lie algebra and let A be a finite dimensional associative and commutative K-algebra with unit.
Ochoa Arango, Jesús Alonso +1 more
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Physical Review, 1969
We devise an algebra of currents and their first time derivatives designed to damp at high momentum the asymptotic behavior of lepton-pair scattering amplitudes from hadrons consequent from the local current algebra of Gell-Mann. Given certain criteria, the algebra we find is unique, and the commutators are expressed linearly in terms of the currents ...
Richard A. Brandt, James D. Bjorken
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We devise an algebra of currents and their first time derivatives designed to damp at high momentum the asymptotic behavior of lepton-pair scattering amplitudes from hadrons consequent from the local current algebra of Gell-Mann. Given certain criteria, the algebra we find is unique, and the commutators are expressed linearly in terms of the currents ...
Richard A. Brandt, James D. Bjorken
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Current treatment and recent progress in gastric cancer
Ca-A Cancer Journal for Clinicians, 2021Smita S Joshi, Brian D Badgwell
exaly