Talk

Kinematic Stratifications

  • Veronica Calvo Cortes
G3 10 (Lecture hall)

Abstract

We study stratifications of regions in the space of symmetric matrices. Their points are Mandelstam matrices for momentum vectors in particle physics. Kinematic strata in these regions are indexed by signs and rank two matroids. Matroid strata of Lorentzian quadratic forms arise when all signs are non-negative. We characterize the posets of strata for massless with and without momentum conservation.

Links

Mirke Olschewski

MPI for Mathematics in the Sciences Contact via Mail

Anna-Laura Sattelberger

MPI for Mathematics in the Sciences Contact via Mail