Front Form Spinors in Weinberg-Soper Formalism and Melosh Transformations for any Spin

Abstract

Using the Weinberg-Soper formalism we construct the front form $(j,0)\oplus (0,j)$ spinors. Explicit expressions for the generalised Melosh transformations up to spin two are obtained. The formalism, without explicitly invoking any wave equations, reproduces spin one half front-form results of Melosh, Lepage and Brodsky, and Dziembowski.

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