Phenomenology of long-lived particles and portals to new physics
Funded by FONDECYT Postdoctoral 3190051
Funded by FONDECYT Postdoctoral 3190051
I was the principal investigator (PI) of this FONDECYT, which was developed from June 2019 until March 2022. The purpose and general goal of this project was to study novel ways in which theories predicting long-lived particles (LLP) could be tested at colliders and other experimental facilities, focusing on three classes of beyond the Standard Model theories:
i) theories able to provide an explanation for neutrino masses (Neutrino portal),
ii) theories that possess viable dark matter candidates (Dark matter portal)
iii) theories where the Higgs boson is coupling to the new physics (Higgs portal)
Concrete results of my project for each of these three classes or new physics “portals” include:
i) the development of optimal searches at colliders (such as the Large Hadron Collider) and other experiments (such as the Super-Kamiokande neutrino detector) for models predicting long-lived heavy neutral leptons. This research contributed to the following articles:
ii) concrete constraints from disappearing charged track searches at the LHC and at a future 100 TeV collider on a dark matter model with new electroweak multiplets. This research contributed to the following article:
iii) definition of concrete regions in parameter space of models predicting long-lived charged scalars, as well as provide a discriminating strategy that can be used in the search for neutral and doubly charged Higgs bosons. This research contributed to the following articles:
In addition, I contributed as editor and author in the Long-Lived Particle Community whitepaper, which took several years of work before publication, which materialized during this FONDECYT grant: