S. González de la Hoz
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View article: BARREIRAS INSTITUCIONAIS NO ACESSO E QUALIDADE NA ATENÇÃO BÁSICA À SAÚDE DE POPULAÇÕES NEGRAS, INDÍGENAS E LGBTQIA+
BARREIRAS INSTITUCIONAIS NO ACESSO E QUALIDADE NA ATENÇÃO BÁSICA À SAÚDE DE POPULAÇÕES NEGRAS, INDÍGENAS E LGBTQIA+ Open
View article: Computing activities at the Spanish Tier-1 & Tier-2s for the ATLAS Experiment in the LHC Run-3 period and towards High Luminosity
Computing activities at the Spanish Tier-1 & Tier-2s for the ATLAS Experiment in the LHC Run-3 period and towards High Luminosity Open
This contribution showcases the Spanish Tier-1 and Tier-2s’ contribution to the computing of the ATLAS experiment at the LHC during the Run-3 period. The Tier-1 and Tier-2 Grid infrastructures, encompassing data storage, processing, and in…
View article: El eterno legado científico de Peter Higgs
El eterno legado científico de Peter Higgs Open
View article: Computing Activities at the Spanish Tier-1 and Tier-2s for the ATLAS experiment in the LHC Run 3 period and towards High Luminosity (HL-LHC)
Computing Activities at the Spanish Tier-1 and Tier-2s for the ATLAS experiment in the LHC Run 3 period and towards High Luminosity (HL-LHC) Open
The ATLAS Spanish Tier-1 and Tier-2s have more than 18 years of experience in the deployment and development of LHC computing components and their successful operation. The sites are actively participating in, and in some cases coordinatin…
View article: Deployment and Operation of the ATLAS EventIndex for LHC Run 3
Deployment and Operation of the ATLAS EventIndex for LHC Run 3 Open
The ATLAS Eventlndex is the global catalogue of all ATLAS real and simulated events. During the LHC long shutdown between Run 2 (20152018) and Run 3 (2022-2025) all its components were substantially revised and a new system was deployed fo…
View article: HBase/Phoenix-based Data Collection and Storage for the ATLAS EventIndex
HBase/Phoenix-based Data Collection and Storage for the ATLAS EventIndex Open
The ATLAS EventIndex is the global catalogue of all ATLAS real and simulated events. During the LHC long shutdown between Run 2 (20152018) and Run 3 (2022-2025) its components were substantially revised, and a new system was deployed for t…
View article: Deep Learning to improve Experimental Sensitivity and Generative Models for Monte Carlo simulations for searching for New Physics in LHC experiments
Deep Learning to improve Experimental Sensitivity and Generative Models for Monte Carlo simulations for searching for New Physics in LHC experiments Open
ML/DL techniques have shown their power in the improvement of several studies and tasks in HEP, especially in physics analysis. Our approach has been to take a number of the ML/DL tools provided by several open-source platforms and apply t…
View article: Big Data Analytics for the ATLAS EventIndex Project with Apache Spark
Big Data Analytics for the ATLAS EventIndex Project with Apache Spark Open
The ATLAS EventIndex was designed to provide a global event catalogue and limited event-level metadata for ATLAS experiment of the Large Hadron Collider (LHC) and their analysis groups and users during Run 2 (2015-2018) and has been runnin…
View article: The ATLAS EventIndex
The ATLAS EventIndex Open
The ATLAS EventIndex system comprises the catalogue of all events collected, processed or generated by the ATLAS experiment at the CERN LHC accelerator, and all associated software tools to collect, store and query this information. ATLAS …
View article: The ATLAS EventIndex: a BigData catalogue for all ATLAS experiment\n events
The ATLAS EventIndex: a BigData catalogue for all ATLAS experiment\n events Open
The ATLAS EventIndex system comprises the catalogue of all events collected,\nprocessed or generated by the ATLAS experiment at the CERN LHC accelerator, and\nall associated software tools to collect, store and query this information.\nATL…
View article: Estudio de la extracción de la señal resonante de sucesos ttbar mediante técnicas de Machine Learning en el experimento ATLAS
Estudio de la extracción de la señal resonante de sucesos ttbar mediante técnicas de Machine Learning en el experimento ATLAS Open
The aim of this work is to make use of various mchine learning techniques to differentiate more efficiently the resonance of the tt¯ quarks produced in a proton-proton collision. The pp collision with a center-of-mass energy of 8 TeV is pa…
View article: THE ATLAS EVENTINDEX USING THE HBASE/PHOENIX STORAGE SOLUTION
THE ATLAS EVENTINDEX USING THE HBASE/PHOENIX STORAGE SOLUTION Open
The ATLAS EventIndex provides a global event catalogue and event-level metadata for ATLAS analysis groups and users. The LHC Run 3, starting in 2022, will see increased data-taking and simulation production rates, with which the current in…
View article: A Reliable Large Distributed Object Store Based Platform for Collecting Event Metadata
A Reliable Large Distributed Object Store Based Platform for Collecting Event Metadata Open
The Large Hadron Collider (LHC) is about to enter its third run at unprecedented energies. The experiments at the LHC face computational challenges with enormous data volumes that need to be analysed by thousands of physics users. The ATLA…
View article: Exploitation of the MareNostrum 4 HPC using ARC-CE
Exploitation of the MareNostrum 4 HPC using ARC-CE Open
The resources of the HPC centers are a potential aid to meet the future challenges of HL-LHC [1] in terms of computational requirements. Spanish HPC centers have recently been used to implement all necessary edge services to integrate reso…
View article: Comparison of different ML methods applied to the classification of events with ttbar in the final state at the ATLAS experiment
Comparison of different ML methods applied to the classification of events with ttbar in the final state at the ATLAS experiment Open
This contribution describes the experience with the application of different Machine Learning (ML) techniques to a physics analysis case. The use case chosen is the classification of top-antitop events coming from BSM or from SM using data…
View article: The ATLAS EventIndex and its evolution towards Run 3
The ATLAS EventIndex and its evolution towards Run 3 Open
The ATLAS experiment has produced hundreds of petabytes of data and expects to have one order of magnitude more in the future. This data are spread among hundreds of computing Grid sites around the world. The EventIndex is the complete cat…
View article: Computing activities at the Spanish Tier-1 and Tier-2s for the ATLAS experiment towards the LHC Run3 and High-Luminosity periods
Computing activities at the Spanish Tier-1 and Tier-2s for the ATLAS experiment towards the LHC Run3 and High-Luminosity periods Open
The ATLAS Spanish Tier-1 and Tier-2s have more than 15 years of experience in the deployment and development of LHC computing components and their successful operations. The sites are already actively participating in, and even coordinatin…
View article: Data-centric Graphical User Interface of the ATLAS Event Index Service
Data-centric Graphical User Interface of the ATLAS Event Index Service Open
The Event Index service of the ATLAS experiment at the LHC keeps references to all real and simulated events. Hadoop Map files and HBase tables are used to store the Event Index data, a subset of data is also stored in the Oracle database.…
View article: The ATLAS EventIndex for LHC Run 3
The ATLAS EventIndex for LHC Run 3 Open
The ATLAS EventIndex was designed in 2012-2013 to provide a global event catalogue and limited event-level metadata for ATLAS analysis groups and users during the LHC Run 2 (2015-2018). It provides a good and reliable service for the initi…
View article: EI3 – The ATLAS EventIndex for LHC Run 3
EI3 – The ATLAS EventIndex for LHC Run 3 Open
Since 2015 the ATLAS Event Index provides a good and reliable service for the initial use cases (mainly event picking) and several additional ones, such as production consistency checks, duplicate event detection and measurements of the ov…
View article: Search for Higgs and Z Boson Decays to J/__ and _(nS)_ with the ATLAS Detector.
Search for Higgs and Z Boson Decays to J/__ and _(nS)_ with the ATLAS Detector. Open
A search for the decays of the Higgs and Z bosons to J/__ and _(nS)_ (n=1,2,3) is performed with pp collision data samples corresponding to integrated luminosities of up to 20.3__fb^{-1} collected at sqrt[s]=8__TeV with the ATLAS detector …
View article: Evidence of W _ _ Production in p p Collisions at s = 8 _ _ TeV and Limits on Anomalous Quartic Gauge Couplings with the ATLAS Detector
Evidence of W _ _ Production in p p Collisions at s = 8 _ _ TeV and Limits on Anomalous Quartic Gauge Couplings with the ATLAS Detector Open
This Letter reports evidence of triple gauge boson production pp -> W(l nu)gamma gamma + X, which is accessible for the first time with the 8 TeV LHC data set. The fiducial cross section for thi ...
View article: Spanish ATLAS Tier-1 & Tier-2 perspective on computing over the next years
Spanish ATLAS Tier-1 & Tier-2 perspective on computing over the next years Open
Since the beginning of the WLCG Project the Spanish ATLAS computing centers have participated with reliable and stable resources as well as personnel for the ATLAS Collaboration. Our contribution to the ATLAS Tier2s and Tier1s computing re…
View article: Distributed Data Collection for the Next Generation ATLAS EventIndex Project
Distributed Data Collection for the Next Generation ATLAS EventIndex Project Open
The ATLAS EventIndex currently runs in production in order to build a complete catalogue of events for experiments with large amounts of data. The current approach is to index all final produced data files at CERN Tier0, and at hundreds of…
View article: A prototype for the evolution of ATLAS EventIndex based on Apache Kudu storage
A prototype for the evolution of ATLAS EventIndex based on Apache Kudu storage Open
The ATLAS EventIndex has been in operation since the beginning of LHC Run 2 in 2015. Like all software projects, its components have been constantly evolving and improving in performance. The main data store in Hadoop, based on MapFiles an…
View article: The ATLAS EventIndex and its evolution based on Apache Kudu storage
The ATLAS EventIndex and its evolution based on Apache Kudu storage Open
The ATLAS experiment produced hundreds of petabytes of data and expects to have one order of magnitude more in the future. This data are spread among hundreds of computing Grid sites around the world. The EventIndex catalogues the basic el…
View article: ATLAS EventIndex general dataflow and monitoring infrastructure
ATLAS EventIndex general dataflow and monitoring infrastructure Open
The ATLAS EventIndex has been running in production since mid-2015, reliably collecting information worldwide about all produced events and storing them in a central Hadoop infrastructure at CERN. A subset of this information is copied to …
View article: How to keep the Grid full and working with ATLAS production and physics jobs
How to keep the Grid full and working with ATLAS production and physics jobs Open
The ATLAS production system provides the infrastructure to process millions of events collected during the LHC Run 1 and the first two years of Run 2 using grid, clouds and high performance computing. We address in this contribution the st…
View article: The ATLAS Eventlndex: data flow and inclusion of other metadata
The ATLAS Eventlndex: data flow and inclusion of other metadata Open
The ATLAS EventIndex is the catalogue of the event-related metadata for the information collected from the ATLAS detector. The basic unit of this information is the event record, containing the event identification parameters, pointers to …
View article: ATLAS Eventlndex monitoring system using the Kibana analytics and visualization platform
ATLAS Eventlndex monitoring system using the Kibana analytics and visualization platform Open
The ATLAS EventIndex is a data catalogue system that stores event-related metadata for all (real and simulated) ATLAS events, on all processing stages. As it consists of different components that depend on other applications (such as distr…