scholarly journals The Compact Muon Solenoid Experiment

10.1142/11448 ◽  
2021 ◽  
Author(s):  
Jim Pivarski
Keyword(s):  
Compact Muon Solenoid

scholarly journals The CMS monitoring infrastructure and applications

2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Christian Ariza-Porras ◽  
Valentin Kuznetsov ◽  
Federica Legger
Keyword(s):  
Distributed Computing ◽  
Compact Muon Solenoid ◽  
Hadron Collider ◽  
Efficient Operation ◽  
Workload Management ◽  
Future Developments ◽  
Cms Experiment ◽  
Data Transfers ◽  
Monitoring Architecture ◽  
Globally Distributed

AbstractThe globally distributed computing infrastructure required to cope with the multi-petabyte datasets produced by the Compact Muon Solenoid (CMS) experiment at the Large Hadron Collider (LHC) at CERN comprises several subsystems, such as workload management, data management, data transfers, and submission of users’ and centrally managed production requests. To guarantee the efficient operation of the whole infrastructure, CMS monitors all subsystems according to their performance and status. Moreover, we track key metrics to evaluate and study the system performance over time. The CMS monitoring architecture allows both real-time and historical monitoring of a variety of data sources. It relies on scalable and open source solutions tailored to satisfy the experiment’s monitoring needs. We present the monitoring data flow and software architecture for the CMS distributed computing applications. We discuss the challenges, components, current achievements, and future developments of the CMS monitoring infrastructure.

Validation of synthetic diamond for a beam condition monitor for the compact muon solenoid experiment

2005 ◽  
Author(s):  
D. Chong ◽  
L. Fernandez-Hernando ◽  
R. Gray ◽  
C.J. Ilgner ◽  
A.L. Macpherson ◽  
...  
Keyword(s):  
Compact Muon Solenoid ◽  
Synthetic Diamond ◽  
Condition Monitor

scholarly journals A Vertex-Aligned Model for Packing 4-Hexagonal Clusters in a Regular Hexagonal Container

Symmetry ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 700
Author(s):  
Marina Prvan ◽  
Arijana Burazin Mišura ◽  
Zoltan Gecse ◽  
Julije Ožegović
Keyword(s):  
Compact Muon Solenoid ◽  
Particle Physics ◽  
Hadron Collider ◽  
Number Of Clusters ◽  
Geometrical Properties ◽  
European Laboratory ◽  
Packing Efficiency ◽  
Packing Scheme ◽  
Container Model ◽  
Maximal Packing

This paper deals with a problem the packing polyhex clusters in a regular hexagonal container. It is a common problem in many applications with various cluster shapes used, but symmetric polyhex is the most useful in engineering due to its geometrical properties. Hence, we concentrate on mathematical modeling in such an application, where using the “bee” tetrahex is chosen for the new Compact Muon Solenoid (CMS) design upgrade, which is one of four detectors used in Large Hadron Collider (LHC) experiment at European Laboratory for Particle Physics (CERN). We start from the existing hexagonal containers with hexagonal cells packed inside, and uniform clustering applied. We compare the center-aligned (CA) and vertex-aligned (VA) models, analyzing cluster rotations providing the increased packing efficiency. We formally describe the geometrical properties of clustering approaches and show that cluster sharing is inevitable at the container border with uniform clustering. In addition, we propose a new vertex-aligned model decreasing the number of shared clusters in the uniform scenario, but with a smaller number of clusters contained inside the container. Also, we describe a non-uniform tetrahex cluster packing scheme in the proposed container model. With the proposed cluster packing solution, it is accomplished that all clusters are contained inside the container region. Since cluster-sharing is completely avoided at the container border, the maximal packing efficiency is obtained compared to the existing models.

scholarly journals Supersymmetry Searches at the Compact Muon Solenoid (CMS) Experiment, 2011

2012 ◽  
Vol 28 ◽  
pp. 09008 ◽  
Author(s):  
S. A. Koay
Keyword(s):  
Compact Muon Solenoid ◽  
Cms Experiment
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