Luc Darme

Luc Darme

I answer to l.darme@ip2i.in2p3.fr as quickly as possible. Or you can find me in Lyon at IP2I, building Dirac, room 337.

Luc Darme

I am currently associate professor at University Lyon 1, after finishing a bit more than a year ago my MSCA Fellowship in Lyon. I went previously to Rome and Warsaw for my first postdocs and did my PhD in Paris (UPMC Paris 6) in the LPTHE

Throughout my academic career, I have found over and over that the richness of the current particle physics program lies in the diversity of its experimental endeavours. A large part of my research now centres around particle physics below the electroweak scale (typically heavier than an electron and lighter than a hundred times the proton mass), where new particles could hide due to their elusive interactions with the Standard Model. I have worked on their link with the SM flavour problem and their detection prospects in beam dump, flavour and more generally intensity frontier experiments. I have a strong expertise on dark matter-related issue, in particular for light dark matter scenarios and may have ventured sometimes towards the study of phase transitions. Finally, I have been steadily involved in various study around phenomenology at LHC.

To get a better idea of what I am currently doing, you should simply check my Inspire HEP profile . You can find below a short summary in any case !

Icone Model
Design models

I have built a strong expertise in designing models with new particles and interactions. I have for instance identified early on the importance of including a full Higgs scalar sector in benchmark models for sub-GeV dark matter. As another example, I showed with my collaborators that new structures solving the flavour problem far above the energy scales accessible in collider experiments can still give rise naturally to an extremely light NP: the so-called QCD axion.

Icone Theory
Create new insights

I have worked in several cutting edge directions to improve -- or create -- the theoretical framework for various processes in high-energy physics. I have designed with my collaborators the only currently known NP solution to the staggering discrepancy currently existing between two independent estimates of the effective coupling between a photon and light hadrons around the proton mass. My research has also led to a new understanding of new particles production during electron-positron annihilation in matter. I also worked on describing the dynamical phase transitions in the early universe.

Icone Search Strategy
Elaborate search strategies

I have personally designed direct, accelerator-based, searches for new light NP in fixed target experiments, from neutrinos experiments to ones dedicated to dark matter searches. I attached a strong importance to making the most of existing experimental setups by showing that they can be used to test a much wider set of new ideas than previously thought. I have for instance shown that neutrinos experiments based on the SBN beam at FNAL offers excellent prospects to look for light dark matter, provided the search strategy is adapted to the specific features of these NP (such as an off-beam-axis search).

Icone Community
Contribute to community efforts

I participate frequently to community-driven efforts to explore the discovery potential of various experiments experiment (for instance the HL-LHC, neutrino experiments or positron fixed-target experiments), push for new search strategies and review well-motivated models of new physics. In these reports (which include “Snowmass” whitepapers) I have typically participated by providing search strategies and discovery potential in terms of NP models motivated by the dark matter problem based on my previous works.