The Rarita--Schwinger field: dressing procedure and spin-parity content
High Energy Physics - Phenomenology
2015-06-25 v3 High Energy Physics - Theory
Nuclear Theory
Abstract
We obtain in analytical form the dressed propagator of the massive Rarita-Schwinger field taking into account all spin components. We found that the nearest analogy for dressing the Rarita--Schwinger field in spin--1/2 sector is dressing the two Dirac fermions of opposite parity with presence of mutual transitions. The calculation of the self-energy contributions confirms that besides the leading spin--3/2 component the Rarita--Schwinger field contains also two spin--1/2 components of different parity.
Cite
@article{arxiv.hep-ph/0409052,
title = {The Rarita--Schwinger field: dressing procedure and spin-parity content},
author = {A. E. Kaloshin and V. P. Lomov},
journal= {arXiv preprint arXiv:hep-ph/0409052},
year = {2015}
}
Comments
16 pages, 5 figures; some typographical errors are corrected