Results 1 to 10 of about 10,471,647 (271)
Current Algebra in Three Dimensions [PDF]
Physical Review Letters, 1992 We study a three dimensional analogue of the Wess--Zumino--Witten model, which describes the Goldstone bosons of three dimensional Quantum Chromodynamics.
A. Kovner +28 more
core +5 more sources
Current algebra and gauge variance [PDF]
Il Nuovo Cimento A, 1967 It is urged that the lesson of gauge invariance in quantum electrodynamics implies the irrelevance of «Schwinger term» difficulties in current algebra. The divergence equations of Veltman form the basis of a gauge-variation formalism in which these questions are avoided.
J. S. Bell
semanticscholar +3 more sources
Soft factorization in QED from 2D Kac-Moody symmetry
Journal of High Energy Physics, 2018 The soft factorization theorem for 4D abelian gauge theory states that the S $$ \mathcal{S} $$-matrix factorizes into soft and hard parts, with the universal soft part containing all soft and collinear poles.
Anjalika Nande +2 more
doaj +3 more sources
Confining Flux Tubes in a Current Algebra Approach [PDF]
, 1994 We describe flux tubes and their interactions in a low energy sigma model induced by $SU({N_f}) \rightarrow SO({N_f})$ flavor symmetry breaking in $SO(N_c)$ QCD.
A. Balachandran +11 more
core +3 more sources
Menagerie of AdS2 boundary conditions [PDF]
Journal of High Energy Physics, 2017 We consider different sets of AdS2 boundary conditions for the Jackiw-Teitelboim model in the linear dilaton sector where the dilaton is allowed to fluctuate to leading order at the boundary of the Poincaré disk.
Daniel Grumiller +4 more
doaj +4 more sources
Abelian Current Algebra and the Virasoro Algebra on the Lattice [PDF]
Physics Letters B, 1993 We describe how a natural lattice analogue of the abelian current algebra combined with free discrete time dynamics gives rise to the lattice Virasoro algebra and corresponding hierarchy of conservation laws.Comment: 11 pages, LATEX, HU-TFT-93 ...
A.Yu. Volkov +17 more
core +4 more sources
The Extension Structure of 2D Massive Current Algebras [PDF]
, 1992 The extension structure of the 2-dimensional current algebra of non-linear sigma models is analysed by introducing Kostant Sternberg $(L,M)$ systems. It is found that the algebra obeys a two step extension by abelian ideals.
Laartz, J.
core +2 more sources
Radiative Corrections to Semileptonic Beta Decays: Progress and Challenges
Particles, 2021 We review some recent progress in the theory of electroweak radiative corrections in semileptonic decay processes. The resurrection of the so-called Sirlin’s representation based on current algebra relations permits a clear separation between the ...
Chien-Yeah Seng
doaj +1 more source
Universe, 2022 This review is devoted to the universal algebraic and geometric properties of the non-relativistic quantum current algebra symmetry and to their representations subject to applications in describing geometrical and analytical properties of quantum and ...
Anatolij K. Prykarpatski
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Quasi-characters in $\widehat{su(2)}$ current algebra at fractional levels
SciPost Physics Core, 2023 We study the even characters of $\widehat{su(2)}$ conformal field theories (CFTs) at admissible fractional levels obtained from the difference of the highest weight characters in the unflavoured limit. We show that admissible even character vectors arise
Sachin Grover
doaj +1 more source