Academy of Finland
Funding decision
Name Voutilainen, Mikko A
Organisation University of Helsinki
Project title Top quarks and gluons
Decision No. 307965
Decision date 20.06.2017
Funding,period 01.09.2017 - 31.08.2021
Funding 468 685
WebFOCUS Report
Project description
The CMS experiment at the Large Hadron Collider at CERN attempts to answer the most fundamental questions about nature: what is matter made of, what is dark matter and what happened in the Big Bang? The discovery of the Higgs boson in 2012 completed the standard model of particle physics, but left another question about the metastability of the universe. The Higgs boson and the heaviest quark, top, cause quantum corrections to each other masses, resulting in an unstable universe for too heavy top quarks. The measured masses place the universe squarely in the metastable region, with a lifetime much longer than that of the present universe. Our group attemps to solve this mystery in different ways by measuring the top quark mass very precisely, by investigating the nature of the carriers of the strong interaction, gluons, which dominate the proton-proton collisions, and by directly searching for evidence of new massive particles, which could stabilize the universe.