CERN Accelerating science

ATLAS experiment

ATLAS and CMS collaborations presented over summer their latest results from Higgs boson decays to second generation fermions with LHC's Run 2 data.

ATLAS NSW Upgrade: preparing installation and commission of its first sector

by Panos Charitos (CERN), Members of the ATLAS NSW upgrade team

A report about the New Small Wheel (NSW) Upgrade, one of the most complex and challenging Phase-1 Upgrade project of the ATLAS detector.

The Higgs boson as a probe for new physics

by Toyoko Orimoto (Northeastern University)

Persistent tensions in the Standard Model of particle physics compel us to seek out new physics at the TeV scale, and the Higgs boson provides us with a potential portal.

ATLAS trigger system meets the challenges of Run 2

by Stefania Xella (University of Copenhagen), Jiri Masik (University of Manchester) for the ATLAS collaboration

The ATLAS trigger system allowed the efficient and stable collection of a rich data sample from the previous runs of the LHC.

The ForwArd Search ExpeRiment (FASER) will search for particles that might be produced parallel to the LHC’s beam line and may travel hundreds of metres without interacting before transforming into known and detectable particles, such as electrons and positrons.

A New Small Wheel for ATLAS is taking shape

by Aimilios Koulouris (ATLAS, NTUA), Panos Charitos (CERN)

To fully exploit the HL-LHC luminosities, the innermost stations, the so called Small Wheels (SW), of the ATLAS Muon Spectrometer need to be replaced by New Small Wheels (NSW); an upgrade scheduled for LS2. 

The LS2 period for the ATLAS detector

by Ludovico Pontecorvo (ATLAS experiment, CERN)

During the two year accelerator shutdown (LS2) the ATLAS detector will undergo a period of upgrades and maintenance.

HL-LHC computational challenge for ATLAS and CMS experiments

by Tommaso Boccali (INFN and CERN) Davide Costanzo (Sheffield U and CERN)

Discussing the computing models and future resource needs for ATLAS and CMS experiments and the possibilities opened up by quantum computing.

Particle colliders join the quest for dark energy.

by Spyros Argyropoulos (University of Iowa) & Panos Charitos (CERN)

A  recently proposed extension of the Standard Model that also accounts for Dark Energy, paves the way towards future collider searches.

Higgs boson observed decaying to bottom quarks

by Panagiotis Charitos

Last month, the ATLAS and CMS collaborations jointly announced the discovery of the Higgs boson decaying into a matter-antimatter pair of bottom quarks.