S. Rajan

collaborators

3 papers

math.AG2026

Universal Formulas for de Jonquières Loci and Equivariant Contact Problems

Smita Rajan

Given a family of genus $g$ curves $f : Ψ \to S$ and a relative degree $d$ line bundle $L$ on $Ψ$ such that $f_{*} L$ is a vector bundle, the projectivization $P (f_{*} L)$ is strat…

math.AG2024

Kinematic Varieties for Massless Particles

Smita Rajan, Svala Sverrisdóttir, Bernd Sturmfels

We study algebraic varieties that encode the kinematic data for $n$ massless particles in $d$ -dimensional spacetime subject to momentum conservation. Their coordinates are spinor b…

hep-th2024

Five-dimensional spinor helicity for all masses and spins

Andrzej Pokraka, Smita Rajan, Lecheng Ren +2

We develop a spinor helicity formalism for five-dimensional scattering amplitudes of any mass and spin configuration. While five-dimensional spinor helicity variables have been pre…