The ATLAS experiment is a general purpose particle detector based at CERN's Large Hardron Collider (LHC), the world's largest and most powerful particle accelerator. The LHC is a 30km machine that collides bunches of 1011 protons in the middle of the ATLAS detector at a rate of 40 million bunch crossings a second. In each bunch crossing, over 20 proton-proton collisions will occur, which will create new particles that will subsequently decay into complicated streams of particles that are recorded by our detector. Piecing together these complicated pictures allows us to recreate what happened in the collisions and to study the fundamental particles and forces of nature. The discovery of the Higgs boson at the LHC, which lead to the award of the Physics Noble Prize to F. Engelert and P. Higgs in 2013, was only the beginning of a 20-30 year physics programme. More indepth studies of the Higgs sector, searches for new physics and precision measurements of the Standard Model, will open a window upon how the Universe operates on the most fundamental levels, and allows us to answer key outstanding questions about the Universe
- What is dark matter?
- Why is there more matter than antimatter in the Universe?
- Is the newly discovered Higgs boson, the Standard Model Higgs boson?
- Are there extra space-time dimensions?
- Does Supersymmetry exist?
- Studies of the Higgs boson.
- Searches for new physics beyond the Standard Model.
- Precision measurements of Standard Model processes.
- Creating, optimising and calibrating algorithms to recreate the particles created in the collisions.
- Technical upgrades to prepare the ATLAS detector for the more intense conditions of the High-Luminosity LHC.
- Exploitation of advanced data analysis and multivariante techniques to enhance analysis sensitivity.