Arbitrary Superspin Massive Superparticles
S.M. Kuzenko, S.L. Lyakhovich, and A.Yu. Segal

TL;DR
This paper introduces a superparticle model with arbitrary superspin, maintaining super-Poincaré invariance, and explores its Hamiltonian dynamics and quantization, revealing on-shell superfield states for N=1.
Contribution
It presents a new action for massive superparticles with arbitrary superspin, including gauge symmetries and quantization methods, extending previous models.
Findings
Model is super-Poincaré invariant with gauge symmetries.
Physical states for N=1 are on-shell massive chiral superfields.
Generalizations with central charges are provided.
Abstract
We propose the action for a massive -extended superparticle with a pure (half)integer superspin . Regardless of the superspin value, the configuration space is , where corresponds to spinning degrees of freedom. Being explicitly super-Poincar\'e invariant, the model possesses two gauge symmetries implying strong conservation of the squared momentum and superspin. Hamilton constrained dynamics is developed and canonical quantization is studied. For = 1 we show that the physical super wave-functions are to be on-shell massive chiral superfields. Central-charges generalizations of the model are given.
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