Current Lagrange Postdoctoral Fellows

#Renjie Wang

My research has been mainly focused on the search for dark matter at the LHC. I did my PhD thesis on experimental particle physics at the Northeastern University in Boston supervised by Prof. Darien Wood. As a member of CMS collaboration at the LHC, I conducted my doctoral research projects on commissioning and upgrade of the Level-1 trigger of the Cathode Strip Chamber system, which is one of the sub-detectors constituting the CMS muon endcaps, and analysis of collision events with electron or muon pairs and missing transverse energy, searching for invisible decays of Higgs bosons, collider-based dark matter, and unparticle physics.

Since April 2016, I moved to LPNHE and became one of Lagrange Postdoctoral Fellows working for the ATLAS collaboration. I play the leading role in search for dark matter produced in association with a 125 GeV SM-like Higgs boson decaying to a pair of photons (so-called “mono-higgs”), and produced in association with a single top quark (so-called “mono-top”). Besides that, I am studying the high-level trigger of missing transverse energy in ATLAS, and developing the algorithm using Fast-TracKer, FTK (a hardware-based system that can quickly reconstructs the charged particle trajectories from the pixel and silicon detectors and provide these track information for high-level trigger decision) to improve the rate reduction and trigger efficiency.

With the CMS and ATLAS collaboration, I am author of more than 260 papers (full list), some typical ones are:
Phys. Rev. D 93, (2016) 052011
Eur. Phys. J. C 74 (2014) 2980
Phys. Lett. B 716 (2012) 285