JINR theoretical physicists, together with their colleagues from Moscow State University and universities of Tomsk, presented a new particle model that generalises an infinite (continuous) spin particle in flat space for constant curvature space. The model is described by commuting Weyl spinor additional coordinates.

The model was proved to only be consistent in external gravitational field corresponding to the constant curvature spaces. A full set of the first-class constraints in the de Sitter and anti-de Sitter spaces was obtained.

The theoretical research was carried out at the Laboratory of Theoretical Physics at JINR in cooperation with Tomsk State Pedagogical University, Tomsk State University of Control Systems and Radioelectronics, National Research Tomsk State University, and Lomonosov Moscow State University. Authors: Joseph Buchbinder, Sergey Fedoruk, Alexey Isaev, Vladimir Krykhtin.