# Behind the Standard Model

## TL;DR

This paper introduces Beyond the Standard Model physics, focusing on the Higgs mass origin, Electroweak symmetry breaking, and the impact of LHC results on new physics theories.

## Contribution

It provides a concise overview of BSM theories like Supersymmetry and Composite Higgs, emphasizing naturalness and LHC implications.

## Key findings

- LHC run-1 results constrain BSM models
- Supersymmetry and Composite Higgs are key BSM scenarios
- Discussion on naturalness and Higgs mass origin

## Abstract

These lectures provide a concise introduction to the so-called "Beyond the Standard Model"' physics, with particular emphasis on the problem of the microscopic origin of the Higgs mass term and of the Electro-Weak symmetry breaking scale in connection with Naturalness. The standard scenarios of Supersymmetry and Composite Higgs are shortly reviewed. An attempt is made to summarise the implications of the LHC run-$1$ results on what we expect to lie beyond (or behind) the Standard Model.