181 citations · 406 across the 18 of their papers we have counts for
11 papers · 1 filter
ALPs and HNLs at LHC and Muon Colliders: Uncovering New Couplings and Signals
Marta Burgos Marcos, Arturo de Giorgi, Luca Merlo +1
Axion-like particles (ALPs) and heavy neutral leptons (HNLs) are two well-motivated classes of particles beyond the Standard Model. It is intriguing to explore the new detection op…
Sensitivities to feebly interacting particles: public and unified calculations
Maksym Ovchynnikov, Jean-Loup Tastet, Oleksii Mikulenko +1
The increasing interest in Long-Lived Particles (LLPs) has led to numerous proposed experiments in order to search for them. However, the sensitivity estimates published by these e…
Feebly Interacting Particles: FIPs 2022 workshop report
C. Antel, M. Battaglieri, J. Beacham +75
Particle physics today faces the challenge of explaining the mystery of dark matter, the origin of matter over anti-matter in the Universe, the origin of the neutrino masses, the a…
Sensitivities to feebly interacting particles: public and unified calculations
Maksym Ovchynnikov, Jean-Loup Tastet, Oleksii Mikulenko +1
The idea that new physics could take the form of feebly interacting particles (FIPs) - particles with a mass below the electroweak scale, but which may have evaded detection due to…
Probing HNL-ALP couplings at colliders
Arturo de Giorgi, Luca Merlo, Jean-Loup Tastet
Axion-like particles (ALPs) and heavy neutral leptons (HNLs) are both well-motivated extensions of the Standard Model. As ALPs couple to on-shell fermions proportionally to their m…
The Present and Future Status of Heavy Neutral Leptons
Asli M. Abdullahi, Pablo Barham Alzas, Brian Batell +42
The existence of non-zero neutrino masses points to the likely existence of multiple SM neutral fermions. When such states are heavy enough that they cannot be produced in oscillat…
Why interpretation matters for BSM searches: a case study with Heavy Neutral Leptons at ATLAS
Jean-Loup Tastet, Oleg Ruchayskiy, Inar Timiryasov
Experiments searching for Heavy Neutral Leptons (HNLs) typically interpret their results within simplified models consisting of a single HNL coupled to a single lepton flavor. Howe…
Reinterpreting the ATLAS bounds on heavy neutral leptons in a realistic neutrino oscillation model
Jean-Loup Tastet, Oleg Ruchayskiy, Inar Timiryasov
Heavy neutral leptons (HNLs) are hypothetical particles, motivated in the first place by their ability to explain neutrino oscillations. Experimental searches for HNLs are typicall…
Projected NA62 sensitivity to heavy neutral lepton production in decays
Jean-Loup Tastet, Evgueni Goudzovski, Inar Timiryasov +1
Heavy neutral leptons (HNLs) appear in many extensions of the Standard Model of particle physics. In this study, we investigate to which extent the NA62 experiment at CERN could im…
Dirac vs. Majorana HNLs (and their oscillations) at SHiP
Jean-Loup Tastet, Inar Timiryasov
SHiP is a proposed high-intensity beam dump experiment set to operate at the CERN SPS. It is expected to have an unprecedented sensitivity to a variety of models containing feebly…
Sensitivity of the SHiP experiment to Heavy Neutral Leptons
SHiP Collaboration
Heavy Neutral Leptons (HNLs) are hypothetical particles predicted by many extensions of the Standard Model. These particles can, among other things, explain the origin of neutrino…