Supertwistors and massive particles
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Publication:530780
DOI10.1016/J.AOP.2014.04.007zbMATH Open1342.81192arXiv1312.2768OpenAlexW3101311653MaRDI QIDQ530780
Author name not available (Why is that?)
Publication date: 1 August 2016
Published in: (Search for Journal in Brave)
Abstract: In the (super)twistor formulation of massless (super)particle mechanics, the mass-shell constraint is replaced by a "spin-shell" constraint from which the spin content can be read off. We extend this formalism to massive (super)particles (with N-extended spacetime supersymmetry) in three and four space-time dimensions, explaining how the spin-shell constraints are related to spin, and we use it to prove equivalence of the massive N=1 and BPS-saturated N=2 superparticle actions. We also find the supertwistor form of the action for "spinning particles" with N-extended worldline supersymmetry, massless in four dimensions and massive in three dimensions, and we show how this simplifies special features of the N=2 case.
Full work available at URL: https://arxiv.org/abs/1312.2768
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