Event calendar file
4-8 November 2024
Mexico/General timezone
Placing Bounds on New Physics with Displaced Photons
Speakers
- Dr. Joel JONES-PÉREZ
Primary authors
- Dr. Joel JONES-PÉREZ (PUCP)
Co-authors
- Dr. Lucia DUARTE PASTORINO (Instituto de Física, Facultad de Ciencias, Universidad de la República)
- Dr. Bastián DÍAZ (Universidad Catolica de Chile)
- Mr. Cristian MANRIQUE-CHAVIL (PUCP)
- Mr. Danilo ZEGARRA (PUCP)
- Mr. Walter RODRIGUEZ (PUCP)
Content
If a neutral long-lived particle decays predominantly into photons and another stable particle, its presence can be reconstructed at the LHC in the form of displaced photons. These are recognized as such in terms of their delayed arrival time $t_\gamma$ and a non-pointing parameter $\Delta z_\gamma$.
In this talk we present a detailed recast of a search for displaced photons in ATLAS, and show how it can be used to constrain new physics. In particular, we use the search to put bounds on the Dimension-5 Seesaw Portal (which can explain neutrino masses) and on a dark photon model coupling via a scalar portal to the Standard Model (which can explain dark matter).
