Work

Three point interaction of Dirac fermions with higher spin particles and discrete symmetries

Year: 2025

Type: article

Abstract: A bstract We constructed all possible kinematically allowed three-point interactions of two massless Dirac spinors with massive higher-spin bosons. In any D spacetime, the interactions have been constructed using the projections of the higher spin irreducible representations of Spin( D − 1) over the product of two irreducible spinor representations of Spin( D − 2). Based on this analysis, we have further classified the space of theories involving two massless Dirac spinors and a single (or multiple) massive higher spin(s) based on the discrete symmetries: C , R , and T . We found that in any D = 2 m + 1/2 m , the interacting theories of a single massive higher spin have a “ m ” mod 2 (or D mod 4) classification.

Source: Journal of High Energy Physics

DOI: 10.1007/jhep05(2025)057

Authors: Kushal Chakraborty, Aakash Kumar, Arnab Rudra, Amey Yeole

Institutions: University of the Witwatersrand, Indian Institute of Science Education and Research, Bhopal, Freie Universität Berlin

Language: English

Topic: Black Holes and Theoretical Physics

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funders: Institute of Mathematical Sciences, National Research Foundation, Indian Institute of Science Education and Research Bhopal, Indian Institute of Science Education and Research Mohali

OpenAlex ID: W4410145463