The description for the spin polarizabilities of hadrons based on the covariant Lagrangian

Details The description for the spin polarizabilities of hadrons based on the covariant Lagrangian The description for the spin polarizabilities of hadrons based on the covariant Lagrangian

2000-09-29

arxiv.org/abs/hep-ph/0009344v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

talk given at QFTHEP'2000 (Tver, Russia); 6 pages, RevTeX; no figures; in revised version some references corrected

Scientific paper

On the basis of the correspondence principle between the relativistic moving medium electrodynamics and relativistic quantum field theory the covariant Lagrangian of the electromagnetic field interaction with the polarized spin particles have been obtained. This Lagrangian satisfies the main relativistic quantum field theory requirements and contains four independent covariant spin structures, which have particular physical meaning. It is shown that the spin polarizabilities give the contribution to the amplitude for Compton scattering on the spin-1/2 hadron in the ${\cal O}(\omega^3)$.

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