Massive Superparticle with Tensorial Central Charges
S. Fedoruk, V. G. Zima

TL;DR
This paper develops a Lorentz-invariant formulation of the massive superparticle in four dimensions with tensorial central charges, analyzing its symmetries and equivalences to spinning particles.
Contribution
It introduces a new Lorentz-invariant model with tensorial central charges and explores its $ppa$-symmetry structure and classical equivalence to spinning particles.
Findings
Model contains a real parameter k affecting $ppa$-symmetry
At k, the model has two $ppa$-symmetries; at k, one symmetry
Classical equivalence established with the massive D=4 spinning particle
Abstract
We construct the manifestly Lorenz-invariant formulation of the N=1 D=4 massive superparticle with tensorial central charges. The model contains a real parameter k and at possesses one -symmetry while at k=0 the number of -symmetry is two. The equivalence of the formulations at all is obtained. The local transformations of -symmetry are written out. It is considered the using of index spinor for construction of the tensorial central charges. It is obtained the equivalence at classical level between the massive D=4 superparticle with one -symmetry and the massive D=4 spinning particle
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