Category: Newsletter
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Resolving a long-standing question at ISOLDE
Resolving a long-standing question at ISOLDE Among the many pioneering results that have been published at ISOLDE was the discovery of odd-even staggering in the mean-square charge radius in neutron deficient Hg isotopes in the 1970s, as part of the RADOP experiment which measured the isotopic shifts using optical spectroscopy [1], [2]. Since then, this
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Removal of the CMS beam pipe during Long Shutdown 2
Removal of the CMS beam pipe during Long Shutdown 2 The CMS detector is built from several different layers, surrounding the beam pipe in which the LHC beams collide. The subdetector that is closest to the collisions is the pixel detector. It has a functionality similar to a digital camera taking 40 million snapshots of
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How Many Fundamental Constants Does It Take To Explain The Universe?
How Many Fundamental Constants Does It Take To Explain The Universe? At a fundamental level, our Universe is made of particles, forces, interactions, and the fabric of space and time. Spacetime forms the ever-evolving stage on which the play of the cosmos unfolds, while the particles are the players. They can bind together, collide, annihilate,
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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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A word from the Head of the EP department – December 2018
A word from the Head of the EP department – December 2018 Dear Colleagues, dear Members of the EP Department and CERN Users, Welcome to the last EP newsletter of 2018. This year has been another great year for CERN. The LHC run has broken again all records, both for the proton-proton run, as well
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A bright year for the EP-DT irradiation facilities
A bright year for the EP-DT irradiation facilities The CERN proton irradiation facility (IRRAD – www.cern.ch/ps-irrad) at the PS East Area and the new gamma irradiation facility (GIF++ – www.cern.ch/gif-irrad) at the SPS North Area have been designed and built during LS1 to cope with the increasing need for irradiation experiments of the EP experimental
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INSIGHTS: A new network of statistics for HEP and beyond
INSIGHTS: A new network of statistics for HEP and beyond Following the success of the AMVA4NewPhysics network, a new 4-year Innovative Training Network funded by the Horizon 2020 program of the European Commission will develop new statistical methods and boost the use of machine learning (ML) to solve some of the most challenging problems in
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Setting a roadmap for future detector technologies
Setting a roadmap for future detector technologies The effort to address the remaining open questions of the Standard Model lies at the core of the HL-LHC physics programme and informs current design studies for post-LHC colliders (CLIC, FCC-ee, FCC-hh) as well as new fixed target experiments explored under the Physics Beyond Collider initiative. To meet
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The MoEDAL Experiment at the Discovery Frontier
The MoEDAL Experiment at the Discovery Frontier MoEDAL, the LHC’s newest experiment [1], that started official data taking in 2015, is different to other collider detectors. It is currently comprised of passive tracking, using plastic Nuclear Track Detectors (NTDs) and trapping sub-detectors that are capable of retaining a permanent direct record of discovery and even
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CMS upgrade plans for LS2
CMS upgrade plans for LS2 To achieve the full benefit of the HL-LHC, CMS must continue to be able to reconstruct at the much higher luminosity all the standard physics analysis objects with high efficiency, low fake rate, and high resolution. Excellent electron, photon, and muon reconstruction is needed for Higgs decays to γγ, ZZ*