Physics Prospects --Why Do We Want a Linear Collider?--

TL;DR

A linear collider is essential for understanding electroweak symmetry breaking, complementing the LHC, especially in exploring models like supersymmetry and technicolor, to clarify fundamental physics mechanisms.

Contribution

The paper emphasizes the crucial role of a linear collider in elucidating electroweak symmetry breaking and demonstrates its importance through analysis of supersymmetry and technicolor models.

Findings

Linear colliders complement LHC in symmetry breaking studies.

Supersymmetry and technicolor models benefit from linear collider data.

Combined efforts are necessary for unambiguous understanding of fundamental physics.

Abstract

The need to understand physics of electroweak symmetry breaking is reviewed. An electron positron linear collider will play crucial roles in that respect. It is discussed how the LHC and a linear collider need each other to understand symmetry breaking mechanism unambiguously. Two popular scenarios, supersymmetry and technicolor-like models, are used to demonstrate this point.