CMS

Can AI help us to find tracks?

Data science (DS) and machine learning (ML) are amongst the fastest growing sectors in science and technology, not at least due to their strong rooting in industrial and commercial applications. Global players such as Google, Facebook and Amazon…

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…

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…

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…

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…

Mapping the CMS inner tracking system with unprecedented precision

In an experiment like CMS, it is important to know where all the detector material is. For example, in order to properly simulate the detector response, you need to know not only where the sensors are, but also the locations of the inactive material…

A new era for calorimetry?

Motivation In the mid-1990s the design of the CMS detector was being finalized, culminating in the relevant Technical Design Reports at the end of the decade. This was followed by the start of construction. The main constraints at the time were…

New paradigms for the CMS Phase-2 Upgrades

The CMS Phase-2 Upgrade projects will replace or improve detector systems to provide the necessary physics performance under the challenging conditions of high luminosity at the HL-LHC. Installation of the upgraded detector systems starts in LS2 and…

CMS pixel upgrade: a truly global endeavor

A new and upgraded pixel detector has just been installed in the heart of CMS in this extended year end technical stop (EYETS 2016-17), marking the end of a five year long construction project. The CMS pixel detector that was replaced was performing…

ATLAS and CMS physicists awarded 2017 Panofsky Prize

On Tuesday, 11 October 2016, the American Physical Society (APS) announced the award of the 2017 W.K.H. Panofsky Prize in Experimental Particle Physics to Michel Della Negra (Imperial College London and, previously, CERN), Peter Jenni (Albert-…

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