Ponente
Javier Alonso-Gonzalez
(IFT)
Descripción
Axion and axion-like particle models are typically affected by a strong fine-tuning problem in conceiving the electroweak and the Peccei-Quinn breaking scales. Within the context of the Minimal Linear ${\sigma}$ Model, axion-like particle constructions are identified where this hierarchy problem is solved, accounting for a TeV Peccei-Quinn breaking scale and a pseudoscalar particle with a mass larger than 10 MeV. Potential signatures at the LHC are discussed.
The talk would be bases on "J. Alonso-González, L. Merlo, F. Pobbe, S. Rigolin and O. Sumensari, <<testable axion-like="" in="" linear ${\sigma}$ model="" minimal="" particles="" the="">>, arXiv:1807.08643 [hep-ph]”.</testable>
