Tag: ATLAS
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Exploring the Lifetime Frontier at the LHC and Beyond
Exploring the Lifetime Frontier at the LHC and Beyond By any reasonable measure, the first ten years of the LHC have been an unmitigated success. But are we exploring everywhere in our data? The overwhelming majority of the searches for particles beyond the Standard Model (BSM) conducted at ATLAS and CMS, for example, assume that
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Scientific data management with Rucio
Scientific data management with Rucio Today's scientific experiments are manifold and diverse in their objectives, size, and workflows. However, one commonality uniting most, if not all, scientific experiments is the creation and analysis of data. Managing these scientific datasets is becoming an increasingly complex and complicated challenge. We have evolved from storing data in single
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RECAST: A framework for reinterpreting physics searches at the LHC
RECAST: A framework for reinterpreting physics searches at the LHC On 22 of December 2015 a SpaceX rocket launched towards space delivering satellites to low Earth orbit and then, instead of being lost to the depths of the ocean, the rocket’s first stage — the most expensive component of a rocket — returned back to
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Latest results from the Higgs boson couplings to second-generation fermions
Latest results from the Higgs boson couplings to second-generation fermions The discovery of the Higgs boson completes the Standard Model, a very successful theory describing particles of visible matter and their interactions. However, there are still big missing pieces in our fundamental understanding of matter, while certain experimental phenomena point to the existence of new
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ATLAS NSW Upgrade: preparing installation and commission of its first sector
ATLAS NSW Upgrade: preparing installation and commission of its first sector The New Small Wheel (NSW) Upgrade it the most complex and challenging Phase-1 Upgrade project of ATLAS. As all the other upgrade projects for the LHC experiments, the goal is to meet the challenges of the High-Luminosity LHC era and to cope with the
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The Higgs boson as a probe for new physics
The Higgs boson as a probe for new physics The discovery of the Higgs boson has ushered in a new era of exploration at the Large Hadron Collider (LHC). Persistent tensions in the Standard Model (SM) of particle physics compel us to seek out physics beyond the SM (BSM) at the TeV scale, and the
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ATLAS trigger system meets the challenges of Run 2
ATLAS trigger system meets the challenges of Run 2 The trigger system is an essential component of any collider experiment as it is responsible for deciding whether or not to keep an event from a given bunch-crossing interaction for later study. During Run 2 (2015 to 2018) of the Large Hadron Collider (LHC), the trigger
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FASER experiment to look for long-lived particles
FASER experiment to look for long-lived particles At its last meeting CERN’s Research Board approved a new experiment that will look for light and weakly interacting long-lived particles at 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
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A New Small Wheel for ATLAS is taking shape
A New Small Wheel for ATLAS is taking shape In order 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 two new detector assemblies called New Small Wheels (NSW). This upgrade is schedule to take place in LS2 (at
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The LS2 period for the ATLAS detector
The LS2 period for the ATLAS detector The main upgrade activities are all aimed at enhancing the capability of the detector to trigger more efficiently on leptonic and hadronic signatures. In particular it is essential to preserve the ability to trigger efficiently on electron and muons with transverse momentum of ~20 GeV. With the instantaneous