Tag: ATLAS
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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
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HL-LHC computational challenge for ATLAS and CMS experiments
HL-LHC computational challenge for ATLAS and CMS experiments The two general purpose LHC Experiments, ATLAS [1] and CMS [2], are going to be confronted with challenging experimental conditions at the High Luminosity LHC Run (HL-LHC), starting in 2026. In particular, computing systems will have to cope with greatly increased data samples and data acquisition and
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Particle colliders join the quest for dark energy.
Particle colliders join the quest for dark energy. The birth of a new science The beginning of the twentieth century was marked by two of the greatest scientific discoveries: quantum mechanics and the theory of relativity, which became the driving forces behind an array of new scientific breakthroughs and technological leaps. Quantum mechanics led to
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Higgs boson observed decaying to bottom quarks
Higgs boson observed decaying to bottom quarks Last month, the ATLAS and CMS collaborations jointly announced the discovery of the Higgs boson decaying into a matter-antimatter pair of bottom quarks. Previously, the Higgs boson has been observed decaying to photons, tau-leptons, and W and Z bosons. However, these impressive achievements represent only 30 percent of
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Axion-like particle searches at the LHC
Axion-like particle searches at the LHC The Standard Model (SM) of Particle Physics is plagued by some longstanding conceptual and practical questions, and we have to go beyond the Standard Model to address them. A guiding principle of the Standard Model is that we should expect to see all processes which are consistent with its
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ATLAS presents a strategy for a general search of new physics
ATLAS presents a strategy for a general search of new physics One of the main goals of the Large Hadron Collider is to look for signals beyond the Standard Model (the other major goal has already been fulfilled with the discovery of the Higgs boson). To this day scientists are still lacking clues. Could it
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LHC’s upgrade takes shape
LHC's upgrade takes shape A ground-breaking ceremony was held on the 15th of June, to celebrate the start of civil engineering work for a major upgrade to the LHC . When completed in 2026, the HL-LHC will produce a five to seven times higher rate of proton-proton collisions, providing better statistics and powering new discoveries
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Precise timing detectors for the LHC experiments
Precise timing detectors for the LHC experiments The ATLAS and CMS experiments physics programme at the HL-LHC will target a very wide range of measurements, including in-depth studies of the Higgs boson properties and direct searches for physics beyond the standard model (BSM). Timing detectors will help improve vertex identification, acceptance extension for isolated objects,