The road ahead
Department of Physics, University of Illinois at Urbana-Champaign, 1110 W. Green Street, Urbana, IL 61801,
2 Kavli Institute for Theoretical Physics, University of California, Santa Barbara, CA 93106,
Accepted: 9 February 2004
Published online: 13 July 2004
I describe the surrounding landscape on the road to the CERN Large Hadron Collider. I revisit the milestones of hadron-collider physics, and from them draw lessons for the future. I recall the primary motivation for the journey – understanding the mechanism of electroweak symmetry breaking – and speculate that even greater discoveries may await us. I review the physics that we know beyond the standard model – dark matter, dark energy, and neutrino masses – and discuss the status of grand-unified theories. I list the reasons why the Higgs boson is central to the standard model as well as to physics beyond the standard model.
© Società Italiana di Fisica, Springer-Verlag, 2004