Access to Collaboration Site and Physics Results
ATLAS Collaboration
ATLAS is run by a collaboration of physicists, engineers, technicians and support staff from around the world. It is one of the largest collaborative efforts ever attempted in science, with over 5000 members and almost 3000 scientific authors.
Further progress in the quest for SUSY particles
ATLAS physicists have been eagerly searching the collected data for evidence of the production of the supersymmetric top quark (squark). Recent ATLAS results feature five separate searches for this elusive particle.
Hunting the origin of the top quark’s mass
The ATLAS experiment has been searching for the process in which a pair of top quarks is produced, where one is a “virtual” particle that emits a Higgs boson on the way to becoming a “real” particle. This process is referred to as ttH production after the particles that are produced.
Searching for new phenomena in final states with missing momentum and jets
The nature of dark matter remains one of the greatest mysteries in physics. While extraordinary, the Standard Model can not explain dark matter, whose existence is well established by cosmological measurements.
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Continuing the search for extra dimensions
For a long time, physicists have assumed that space-time has four dimensions in total – three of space and one of time – in agreement with what we see when we look around us. However, some theorists have proposed that there may be other spatial dimensions that we don’t experience in our daily lives.
Di-photons in the spotlight
The ATLAS collaboration has now released the final results on the search for new physics in the di-photon channel using 2015 data.
Something went bump in the night
ATLAS has published hundreds of studies of LHC data, with the Higgs boson discovery being perhaps the best known. Amongst the Run 1 searches there was one which stood out: the diboson excess.
A peek inside the proton…
When the protons from the LHC collide, they sometimes produce W and Z bosons, the massive carriers of the weak force responsible for radioactive decays. These bosons are produced in abundance at the LHC and ATLAS physicists have now precisely measured their production rates using 13 TeV proton-proton collision data recorded in 2015.
Weighing in on the top quark mass
ATLAS has released a new precise measurement of the mass of the top quark, the heaviest known elementary particle.
Stacking the building blocks of the 2016 ATLAS physics programme
2016 is set to be an outstanding year for the ATLAS experiment and the Large Hadron Collider. We’re expecting up to 10 times more data compared to 2015, which will allow us to make precise measurements of many known physics processes and to search for new physics.
The search for the dark side of the Universe
ATLAS scientists have just released a new publication with results based on an analysis of the early Run 2 data collected in 2015 using 13 TeV proton-proton collisions.
