High Energy Physics / Université catholique de Louvain / Louvain-la-Neuve


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Top quarks: still there at 13 TeV!

In occasion of the EPS-HEP conference, to demonstrate the good performance of the detector at the Run-II start-up, the CMS collaboration has released the first illustrative event displays and distributions of observables designed to study top-quark events. The data set consists of the first 41 inverse picobarns of proton-proton collisions recorded by the CMS detector at a center-of-mass energy of 13 TeV with a magnetic field of 3.8 Tesla in the solenoid, during the LHC development run with a bunch spacing of 50 ns that took place in July 2015. Although the first quantitative statements will only be released later, these very early data already demonstrate unambiguous presence of the top-quark pair signal (also confirmed at the same conference by the ATLAS collaboration with 6 inverse picobarns) and early hints of single top. CP3 members are involved in these early studies. Read more...
Top quarks: still there...
CP3 News Blog


Latest preprints

Simplifed Models for Exotic long-lived signatures
Loic Quertenmont, Jan Heisig, Andre Lessa
31st August.

On the Impact of Lepton PDFs
Valerio Bertone, Stefano Carrazza, Davide Pagani, Marco Zaro
[Abstract] [PDF]
Refereed paper. 27th August.

SOIPIX R&D programme and applications
Cortina Gil, Eduardo and Soung-Yee, Lawrence
[Full text] 2nd International Summer School on Intelligent Signal Processing for Frontier Research and Industry
Refereed paper. Contribution to proceedings. 24th August.


The Physics Department at UCLouvain has been involved for a number of decades in high energy particle physics research, equally strongly on the experimental and instrumental fronts as on the theoretical one. In spite of being located in physically distinct places, all these activities are now brought together within a common organisational structure, the Centre for Cosmology, Particle Physics and Phenomenology (CP3). This structure reinforces the collaboration of these varied components and competences in the physics of the fundamental interactions and the elementary particles.



[UCLouvain] - [SST] [IRMP] - [SC] [PHYS]
Contact : Vincent Boucher & Jérôme de Favereau
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