26-30 March 2012
University of Bonn
Europe/Berlin timezone

Conformal symmetry and the relations between perturbative contributions to the Bjorken and Ellis-Jaffe sum rule of the polarized DIS

29 Mar 2012, 09:50
20m
Lecture Hall, Institute for Physical Chemistry (University of Bonn)

Lecture Hall, Institute for Physical Chemistry

University of Bonn

Spin physics Spin physics

Speaker

A. L. Kataev (Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia)

Description

Using operator-product expansion approach for the triangle diagram of Axial-Vector-Vector currents symmetry I derive the singlet variant of the Crewther relation, which is valid in the conformal -invariant limit of perturbative approach. I demonstrate that in the conformal-invariant limit of U(1)-model the non-singlet coefficient function of Bjorken and Ellis-Jaffe sum rule identically coincide with the coefficient function of singlet contribution to Ellis-Jaffe sum rules in all orders of perturbation theory. The discussions of the possible generalizations to the conformal-invariant limit of SU(N_c) theory is presented.

Primary author

A. L. Kataev (Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia)

Presentation Materials