G. Gomez Ceballos
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View article: Phase-2 CMS DAQ — growing from prototype boards to demonstrator systems
Phase-2 CMS DAQ — growing from prototype boards to demonstrator systems Open
For the Phase-2 upgrade of the CMS experiment, the CMS central DAQ group designed and developed two custom ATCA boards. These boards provide the interfaces between the sub-detector electronics and the central CMS systems. This paper descri…
View article: OMS Data Aggregation and Management in the CMS Experiment
OMS Data Aggregation and Management in the CMS Experiment Open
The Online Monitoring System (OMS) at the Compact Muon Solenoid (CMS) experiment at CERN collects and combines various non-event data sources, allowing users to view, compare, and correlate real-time and historical information. The OMS dat…
View article: Evaluating a File-Based Event Builder to enhance the Data Acquisition in the CMS Experiment
Evaluating a File-Based Event Builder to enhance the Data Acquisition in the CMS Experiment Open
The event builder in the Data Acquisition System (DAQ) of the CMS experiment at the CERN Large Hadron Collider (LHC) is responsible for assembling events at a rate of 100 kHz during the current LHC run 3, and up to750 kHz for the upcoming …
View article: Experience with the alpaka performance portability library in the CMS software
Experience with the alpaka performance portability library in the CMS software Open
To achieve better computational efficiency and exploit a wider range of computing resources, the CMS software framework (CMSSW) has been extended to offload part of the physics reconstruction to NVIDIA GPUs. To support additional back-ends…
View article: Architecting software applications in containerized environment for CMS data acquisition
Architecting software applications in containerized environment for CMS data acquisition Open
The data acquisition (DAQ) system stands as an essential component within the CMS experiment at CERN. It relies on a large network system of computers with demanding requirements on control, monitoring, configuration and high throughput co…
View article: The CMS Orbit Builder for the HL-LHC at CERN
The CMS Orbit Builder for the HL-LHC at CERN Open
The Compact Muon Solenoid (CMS) experiment at CERN incorporates one of the highest throughput data acquisition systems in the world and is expected to increase its throughput by more than a factor of ten for High-Luminosity phase of Large …
View article: First year of experience with the new operational monitoring tool for data taking in CMS during Run 3
First year of experience with the new operational monitoring tool for data taking in CMS during Run 3 Open
The Online Monitoring System (OMS) at the Compact Muon Solenoid experiment (CMS) at CERN aggregates and integrates different sources of information into a central place and allows users to view, compare and correlate information. It displa…
View article: Towards a container-based architecture for CMS data acquisition
Towards a container-based architecture for CMS data acquisition Open
The CMS data acquisition (DAQ) is implemented as a service-oriented architecture where DAQ applications, as well as general applications such as monitoring and error reporting, are run as self-contained services. The task of deployment and…
View article: MiniDAQ-3: Providing concurrent independent subdetector data-taking on CMS production DAQ resources
MiniDAQ-3: Providing concurrent independent subdetector data-taking on CMS production DAQ resources Open
The data acquisition (DAQ) of the Compact Muon Solenoid (CMS) experiment at CERN, collects data for events accepted by the Level-1 Trigger from the different detector systems and assembles them in an event builder prior to making them avai…
View article: Boson–Boson Interactions at the LHC
Boson–Boson Interactions at the LHC Open
Vector boson scattering is a key production process to probe the electroweak symmetry breaking of the Standard Model and is one of the most important topics of the physics program for the HL-LHC since it involves both self-couplings of vec…
View article: Progress in Design and Testing of the DAQ and Data-Flow Control for the Phase-2 Upgrade of the CMS Experiment
Progress in Design and Testing of the DAQ and Data-Flow Control for the Phase-2 Upgrade of the CMS Experiment Open
The CMS detector will undergo a major upgrade for the Phase-2 of theLHC program the High-Luminosity LHC. The upgraded CMS detector willbe read out at an unprecedented data rate exceeding50 Tb/s, with a Level-1 trigger selecting eventsat a …
View article: CMS phase-2 DAQ and timing hub prototyping results and perspectives
CMS phase-2 DAQ and timing hub prototyping results and perspectives Open
This paper describes recent progress on the design of the DAQ and Timing Hub, or DTH, an ATCA (Advanced Telecommunications Computing Architecture) hub board intended for the phase-2 upgrade of the CMS experiment. Prototyping was originally…
View article: Properties of the X(3872)
Properties of the X(3872) Open
X(3872) discovery was confirmed with the CDF II detector in {bar p}p collisions. They measure its mass to be 3871.3 {+-} 0.7 {+-} 0.4 MeV/c{sup 2}. The source of the X state in the large CDF sample is resolved by studying their vertex disp…
View article: Vector boson scattering: Recent experimental and theory developments
Vector boson scattering: Recent experimental and theory developments Open
View article: Search for strongly interacting massive particles generating trackless jets in proton-proton collisions at $\sqrt{s} = $ 13 TeV
Search for strongly interacting massive particles generating trackless jets in proton-proton collisions at $\sqrt{s} = $ 13 TeV Open
A search for dark matter in the form of strongly interacting massive particles (SIMPs) using the CMS detector at the LHC is presented. The SIMPs would be produced in pairs that manifest themselves as pairs of jets without tracks. The energ…
View article: The Phase-2 Upgrade of the CMS Data Acquisition
The Phase-2 Upgrade of the CMS Data Acquisition Open
The High Luminosity LHC (HL-LHC) will start operating in 2027 after the third Long Shutdown (LS3), and is designed to provide an ultimate instantaneous luminosity of 7:5 × 10 34 cm −2 s −1 , at the price of extreme pileup of up to 200 inte…
View article: First measurements with the CMS DAQ and Timing Hub prototype-1
First measurements with the CMS DAQ and Timing Hub prototype-1 Open
The DAQ and Timing Hub is an ATCA hub board designed for the Phase-2 upgrade of the CMS experiment. In addition to providing high-speed Ethernet connectivity to all back-end boards, it forms the bridge between the sub-detector electronics …
View article: 40 MHz Level-1 Trigger Scouting for CMS
40 MHz Level-1 Trigger Scouting for CMS Open
The CMS experiment will be upgraded for operation at the HighLuminosity LHC to maintain and extend its physics performance under extreme pileup conditions. Upgrades will include an entirely new tracking system, supplemented by a track find…
View article: DAQExpert the service to increase CMS data-taking efficiency
DAQExpert the service to increase CMS data-taking efficiency Open
The Data Acquisition (DAQ) system of the Compact Muon Solenoid (CMS) experiment at the LHC is a complex system responsible for the data readout, event building and recording of accepted events. Its proper functioning plays a critical role …
View article: Dark Matter benchmark models for early LHC Run-2 Searches: Report of the ATLAS/CMS Dark Matter Forum
Dark Matter benchmark models for early LHC Run-2 Searches: Report of the ATLAS/CMS Dark Matter Forum Open
View article: Design and development of the DAQ and Timing Hub for CMS Phase-2
Design and development of the DAQ and Timing Hub for CMS Phase-2 Open
The CMS detector will undergo a major upgrade for Phase-2 of the LHC program, starting around 2026. The upgraded Level-1 hardware trigger will select events at a rate of 750 kHz. At an expected event size of 7.4 MB this corresponds to a da…
View article: Higgs Physics at the HL-LHC and HE-LHC
Higgs Physics at the HL-LHC and HE-LHC Open
The discovery of the Higgs boson in 2012, by the ATLAS and CMS experiments, was a success achieved with only a percent of the entire dataset foreseen for the LHC. It opened a landscape of possibilities in the study of Higgs boson propertie…
View article: Operational experience with the new CMS DAQ-Expert
Operational experience with the new CMS DAQ-Expert Open
The data acquisition (DAQ) system of the Compact Muon Solenoid (CMS) at CERN reads out the detector at the level-1 trigger accept rate of 100 kHz, assembles events with a bandwidth of 200 GB/s, provides these events to the high level-trigg…
View article: Extending the Remote Control Capabilities in the CMS Detector Control System with Remote Procedure Call Services
Extending the Remote Control Capabilities in the CMS Detector Control System with Remote Procedure Call Services Open
The CMS Detector Control System (DCS) is implemented as a large distributed and redundant system, with applications interacting and sharing data in multiple ways. The CMS XML-RPC is a software toolkit implementing the standard Remote Proce…
View article: The CMS Event-Builder System for LHC Run 3 (2021-23)
The CMS Event-Builder System for LHC Run 3 (2021-23) Open
The data acquisition system (DAQ) of the CMS experiment at the CERN Large Hadron Collider (LHC) assembles events of 2MB at a rate of 100 kHz. The event builder collects event fragments from about 750 sources and assembles them into complet…
View article: Presentation layer of CMS Online Monitoring System
Presentation layer of CMS Online Monitoring System Open
The Compact Muon Solenoid (CMS) is one of the experiments at the CERN Large Hadron Collider (LHC). The CMS Online Monitoring system (OMS) is an upgrade and successor to the CMS Web-Based Monitoring (WBM)system, which is an essential tool f…
View article: Experience with dynamic resource provisioning of the CMS online cluster using a cloud overlay
Experience with dynamic resource provisioning of the CMS online cluster using a cloud overlay Open
The primary goal of the online cluster of the Compact Muon Solenoid (CMS) experiment at the Large Hadron Collider (LHC) is to build event data from the detector and to select interesting collisions in the High Level Trigger (HLT) farm for …
View article: A Scalable Online Monitoring System Based on Elasticsearch for Distributed Data Acquisition in Cms
A Scalable Online Monitoring System Based on Elasticsearch for Distributed Data Acquisition in Cms Open
The part of the CMS Data Acquisition (DAQ) system responsible for data readout and event building is a complex network of interdependent distributed applications. To ensure successful data taking, these programs have to be constantly monit…
View article: Dark Matter Searches with the CMS Experiment
Dark Matter Searches with the CMS Experiment Open
This conference report briefly reviews the status of the dark matter searches at the CMS experiment with the data collected in 2016 at $\\sqrt{s}$ = 13 TeV using a relatively large number of different final states.
View article: Search for an exotic decay of the Higgs boson to a pair of light pseudoscalars in the final state with two b quarks and two τ leptons in proton–proton collisions at √s = 13 TeV
Search for an exotic decay of the Higgs boson to a pair of light pseudoscalars in the final state with two b quarks and two τ leptons in proton–proton collisions at √s = 13 TeV Open