I am a professor in the Theoretical High Energy Physics group at Mainz University. The focus of my research group is on physics beyond the standard model and cosmology. We are trying to figure out why there is more matter than anti-matter in the Universe, what dark matter is made of and what kind of new physics the LHC might detect.

Some of the topics we are currently working on are:

• Axions and gravitational waves
• Using gravitational waves to probe dark sectors
• The relaxion mechanism as solution to the hierarchy problem
• Composite dark matter sectors and their phenomenology
• Long lived particles and non-standard collider signatures at the LHC

• The ALPs from the Top: Searching for long lived axion-like particles from exotic top decays
  Adrian Carmona, Fatemeh Elahi, Christiane Scherb, Pedro Schwaller, submitted to JHEP.
• Probing non-thermal light DM with structure formation and Neff
  Sven Baumholzer, Pedro Schwaller, submitted to JHEP.
• Audible Axions with a Booster: Stochastic Gravitational Waves from Rotating ALPs
  Eric Madge, Wolfram Ratzinger, Daniel Schmitt, Pedro Schwaller, submitted to Scipost.
• Gravitational wave echo of relaxion trapping
  Abhishek Banerjee, Eric Madge, Gilad Perez, Wolfram Ratzinger, Pedro Schwaller, PRD 2021.
• Charming ALPs
  Adrian Carmona, Christiane Scherb, Pedro Schwaller, JHEP 2021.
• Dark, Cold, and Noisy: Constraining Secluded Hidden Sectors with Gravitational Waves
  Moritz Breitbach, Joachim Kopp, Eric Madge, Toby Opferkuch, Pedro Schwaller, JCAP 2019.
• Audible Axions
  Camila Machado, Wolfram Ratzinger, Pedro Schwaller, Ben Stefanek, JHEP 2019.
• Gravitational Waves from a Dark Phase Transition
  P. Schwaller PRL 2015.
• Emerging Jets
  P. Schwaller, D. Stolarski, A. Weiler, JHEP 2015.