Results 1 to 10 of about 16,020 (169)

Radiative Corrections to Semileptonic Beta Decays: Progress and Challenges

open access: yesParticles, 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

Quantum Current Algebra in Action: Linearization, Integrability of Classical and Factorization of Quantum Nonlinear Dynamical Systems

open access: yesUniverse, 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
doaj   +1 more source

Quasi-characters in $\widehat{su(2)}$ current algebra at fractional levels

open access: yesSciPost 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

Topological tensor invariants and the current algebra approach: analysis of 196 nonleptonic two-body decays of single and double charm baryons – a review

open access: yesEuropean Physical Journal C: Particles and Fields, 2022
We shed new light on the standard current algebra approach to the nonleptonic two-body decays of single and double heavy charm baryons. By making use of the completeness relation for the flavor wave functions of the ground state baryon $$\mathbf{20 ...
Stefan Groote, Jürgen G. Körner
doaj   +1 more source

Three-dimensional higher-order Schrödinger algebras and Lie algebra expansions

open access: yesJournal of High Energy Physics, 2020
We provide a Lie algebra expansion procedure to construct three-dimensional higher-order Schrödinger algebras which relies on a particular subalgebra of the four-dimensional relativistic conformal algebra.
Oguzhan Kasikci   +3 more
doaj   +1 more source

MHV gluon scattering amplitudes from celestial current algebras

open access: yesJournal of High Energy Physics, 2021
We show that the Mellin transform of an n-point tree level MHV gluon scattering amplitude, also known as the celestial amplitude in pure Yang-Mills theory, satisfies a system of (n−2) linear first order partial differential equations corresponding to (n ...
Shamik Banerjee, Sudip Ghosh
doaj   +1 more source

Soft factorization in QED from 2D Kac-Moody symmetry

open access: yesJournal 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   +1 more source

Bethe Vectors of Quantum Integrable Models with GL(3) Trigonometric R-Matrix

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2013
We study quantum integrable models with GL(3) trigonometric $R$-matrix and solvable by the nested algebraic Bethe ansatz.Using the presentation of the universal Bethe vectors in terms of projections of products of the currents of the quantum affine ...
Samuel Belliard   +3 more
doaj   +1 more source

Currents, charges and algebras in exceptional generalised geometry

open access: yesJournal of High Energy Physics, 2021
A classical E d(d)-invariant Hamiltonian formulation of world-volume theories of half-BPS p-branes in type IIb and eleven-dimensional supergravity is proposed, extending known results to d ≤ 6. It consists of a Hamiltonian, characterised by a generalised
David Osten
doaj   +1 more source

A current algebra approach to the equilibrium classical statistical mechanics and its applications

open access: yesCondensed Matter Physics, 2013
The non-relativistic current algebra approach is analyzed subject to its application to studying the distribution functions of many-particle systems at the temperature equilibrium and their stability properties.
N. Bogolubov, A. Prykarpatsky
doaj   +1 more source

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