James (Jim) W. Rohlf

A career across the four forces — from colliders to the cosmos

Electromagnetic · weak · strong — and now gravity on cosmic scales

• Electromagnetic (γ)

  e⁺e⁻ → b b

  CLEO @ Cornell

  bottom-quark physics
  (1980)

• Weak (W, Z)

  q q → W, Z

  UA1 @ CERN pp

  W and Z boson discovery
  (1983)

• Strong (gluon)

  g g → H

  CMS @ CERN LHC

  Higgs boson discovery
  (2012)

  E260 @ Fermilab

  first hadron jets
  (1977)

• Gravity (—)

  large-scale structure

  DESI @ Kitt Peak

  gravity on cosmic scales
  (now)

  spin-2 graviton — theory only;
  no quantum theory of gravity

Same toolkit — symmetry & quantum fields — carried from particle colliders to the growth of cosmic structure with DESI.