3 papers
hep-ph2024
Probing Heavy Neutrino Magnetic Moments at the LHC using Long-Lived Particle Searches
Rebeca Beltrán, Patrick D. Bolton, Frank F. Deppisch +2
We explore long-lived particle (LLP) searches using non-pointing photons at the LHC as a probe for sterile-to-sterile and active-to-sterile transition magnetic dipole moments of st…
hep-ph2023
Heavy neutral leptons from kaons in effective field theory
Rebeca Beltrán, Julian Günther, Martin Hirsch +2
In the framework of the low-energy effective theory containing in addition to the Standard Model fields heavy neutral leptons (HNLs), we compute the decay rates of neutral and char…
hep-ph2023
Tree-level UV completions for SMEFT and operators
Rebeca Beltrán, Ricardo Cepedello, Martin Hirsch
We study ultra-violet completions for operators in standard model effective field theory extended with right-handed neutrinos (SMEFT). Using a diagrammatic method, we generate…