Results 211 to 220 of about 10,471,647 (271)
Some of the next articles are maybe not open access.
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
openaire +2 more sources
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
openaire +2 more sources
Fortschritte der Physik, 1969
AbstractThis is a review paper on the most important results obtained from the Algebra of Currents introduced by Gell‐Mann. It includes a detailed discussion on the derivation of sum rules (Adler‐Weisberger, Cabibbo‐Radicati, etc.), either with the p → ∞ method and with the covariant method. Theorems for the emission of zero energy pions are discussed,
Maiani, L., Preparata, G.
openaire +1 more source
AbstractThis is a review paper on the most important results obtained from the Algebra of Currents introduced by Gell‐Mann. It includes a detailed discussion on the derivation of sum rules (Adler‐Weisberger, Cabibbo‐Radicati, etc.), either with the p → ∞ method and with the covariant method. Theorems for the emission of zero energy pions are discussed,
Maiani, L., Preparata, G.
openaire +1 more source
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.
openaire +2 more sources
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.
CHIEN-ER LEE +2 more
openaire +1 more source
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
openaire +1 more source
Lie algebra extensions of current algebras on S3
International Journal of Geometric Methods in Modern Physics, 2015An affine Kac–Moody algebra is a central extension of the Lie algebra of smooth mappings from S1 to the complexification of a Lie algebra. In this paper, we shall introduce a central extension of the Lie algebra of smooth mappings from S3 to the quaternization of a Lie algebra and investigate its root space decomposition.
Kori, Tosiaki, Imai, Yuto
openaire +1 more source
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 ...
V De Alfaro +3 more
openaire +2 more sources
CURRENT-CURRENT CORRELATION FUNCTION ON ALGEBRAIC CURVES
Modern Physics Letters A, 1993We derive an explicit expression for a current-current correlation function on a Riemann surface represented as 3 sheets ramified covering over CP(1). The method used in the paper can be easily applied to more general algebraic curves. Knowledge of G(z, w) enables calculation of the expectation value of the energy momentum tensor for scalar field.
openaire +2 more sources
Variational algorithms for linear algebra
Science Bulletin, 2021Xiaosi Xu, Jinzhao Sun, Suguru Endo
exaly