Where no man has gone before - First measurements of top quark pair production at 13 TeV

by Alexander Grohsjean (DESY (Germany))

Wednesday 3 Feb 2016, 13:00 → 14:00 Europe/Brussels

E/3rd floor-E.349 - Seminar room (E.349) (Marc de Hemptinne (chemin du Cyclotron, 2, Louvain-la-Neuve))

The discovery of the top quark in 1995 at the Fermilab Tevatron collider completed the quark sector of the Standard Model (SM) of particle physics and was a remarkable confirmation of this theory. Due to its high mass close to that of a gold nuclei and its Higgs Yukawa coupling close to one, the top quark may play a special role in electroweak symmetry breaking and it is an excellent candidate to search for new physics beyond the SM. The restart of the Large Hadron Collider (LHC) summer this year at a center-of-mass energy of 13 TeV bridges into a new energy regime and represents an exciting opportunity to measure top quark properties in a completely unexplored region. In this talk, I present very first measurements of inclusive and differential top quark pair production cross sections at 13 TeV from the CMS experiment and discuss the potential of discovering new physics at the LHC in the top quark sector with future high precision measurements.

Slides agrohsje_earlylhc13tev.pdf