CMS

Artificial neural networks shed light on rare SM processes.

In a new paper released last month, the ATLAS Collaboration reported the observation of a single top quark produced in association with a Z boson (tZq) using the full Run-2 dataset, thereby confirming earlier results by ATLAS and…

Heterogeneous computing efforts for high-energy physics experiments

Substantial improvements to the current experiments at the LHC are underway, and new experiments are being proposed or discussed at future energy-frontier accelerators to answer fundamental questions in particle physics. At future hadron colliders,…

ATLAS and CMS joint bootcamp for analysis preservation

Last month, 30 young graduate students and postdocs gathered at CERN to attend the first joint ATLAS+CMS analysis preservation bootcamp, organised by Sam Meehan, Clemens Lange, Lukas Heinrich (CERN), and Savannah Thais (Princeton). Over the course…

Deep Neural Networks for particle reconstruction in high-granularity calorimeters

Precision measurements in high energy physics as well as an increasing amount of searches for new phenomena rely on a precise reconstruction of the event that caused a particular signature in the detector. Particle ﬂow algorithms [1, 2, 3, 4] aim to…

AMVA4NewPhysics legacy in searches for new physics

*/ A couple of months ago, the four-year life cycle of AMVA4NewPhysics, a Horizon2020-funded Marie Skłodowska-Curie Innovative Training Network (ITN), in which CERN participated as one of the member institutions, was completed. With the…

Precision timing upgrade of the CMS detector

Soon after 2027, the LHC will enter the high luminosity era, known as HL-LHC. It will begin operations at a stable luminosity of 5.0×1034 cm−2 s−1, resulting in much higher collision rates than currently achievable, but with a pileup of 140…

Re-discovering the Higgs boson in the Cloud

It’s hard to believe that it has already been more than seven years since the discovery of the Higgs boson. Since then, numerous papers have been published by the ATLAS and CMS collaborations measuring the long-awaited particle’s properties in…

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…

CMS Open data in use

“[...] The release of data could create a community of users which may be nurtured through regular events organized by CMS.[...]” This is a phrase in the CMS data preservation, re-use and open access policy, which was first approved seven and…

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…

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