English

Rational Relativistic Collisions

Popular Physics 2014-07-04 v2 Classical Physics

Abstract

If two point particles collide relativistically in one dimension, and the masses, velocities and gamma factors of the incoming particles are rational numbers, then the velocities and gamma factors of the outgoing particles are rational. Numerous examples can be found using Pythagorean triples. At all velocities, the collision results in a Lorentzian reflection of the 2-momenta of the particles.

Keywords

Cite

@article{arxiv.1406.3014,
  title  = {Rational Relativistic Collisions},
  author = {N. S. Manton},
  journal= {arXiv preprint arXiv:1406.3014},
  year   = {2014}
}

Comments

12 pages, 1 figure. Version 2, slightly rewritten, with a new section exploring a collision as a Lorentzian reflection in momentum space

R2 v1 2026-06-22T04:36:23.609Z