Explanipedia

Study of states in the mass spectrum Open

R. Aaij, A. S. W. Abdelmotteleb, Carlos Abellán Beteta, F. Abudinén, T. Ackernley , et al. · 2025

The study of a wide peaking structure in the B c + γ mass spectrum is reported using a data sample of proton-proton collisions collected by the LHCb detector at center-of-mass energies of 7, 8, and 13 TeV, corresponding to an integrate…

An automated bandwidth division for the LHCb upgrade trigger Open

C. Fitzpatrick, T. Evans, J. Horswill · 2025

Implementation of an oxytocin bolus protocol for cesarean delivery at a Texas level IV maternal center: a single-center retrospective study Open

Brandon Hood, Emily E. Sharpe, C. Fitzpatrick, Annarose Dement, Cláudia Serrano , et al. · 2025

Patients in the oxytocin bolus cohort were approximately 75% less likely to receive a secondary uterotonic agent compared to patients in the oxytocin infusion cohort. A limitation of this study was that we defined intramyometrial administr…

HSF IRIS-HEP Second Analysis Ecosystem Workshop Report Open

G. A. Stewart, P. Elmer, G. Eulisse, L. Gouskos, Stephan Hageboeck , et al. · 2022

The second workshop on the HEP Analysis Ecosystem took place 23-25 May 2022 at IJCLab in Orsay, to look at progress and continuing challenges in scaling up HEP analysis to meet the needs of HL-LHC and DUNE, as well as the very pressing nee…

HSF IRIS-HEP Second Analysis Ecosystem Workshop Report Open

G. A. Stewart, P. Elmer, G. Eulisse, L. Gouskos, Stephan Hageboeck , et al. · 2022

The second workshop on the HEP Analysis Ecosystem took place 23-25 May 2022 at IJCLab in Orsay, to look at progress and continuing challenges in scaling up HEP analysis to meet the needs of HL-LHC and DUNE, as well as the very pressing nee…

Standardization of in vitro digestibility and DIAAS method based on the static INFOGEST protocol Open

Lotti Egger, Raquel Sousa, Isidra Recio, Lychou Abbühl, Cédric Brügger , et al. · 2022

Background: The FAO recommends the digestible indispensable amino acid score (DIAAS) as the measure for protein quality, for which the true ileal digestibility needs to be assessed in humans or pigs. However, due to high costs and ethical …

A Comparison of CPU and GPU Implementations for the LHCb Experiment Run 3 Trigger Open

R. Aaij, M. Adinolfi, S. Aiola, S. Akar, J. Albrecht , et al. · 2021

The Large Hadron Collider beauty (LHCb) experiment at CERN is undergoing an upgrade in preparation for the Run 3 data collection period at the Large Hadron Collider (LHC). As part of this upgrade, the trigger is moving to a full software i…

Evolution of the energy efficiency of LHCb’s real-time processing Open

R. Aaij, D. H. Cámpora Pérez, T. Colombo, C. Fitzpatrick, V. V. Gligorov , et al. · 2021

The upgraded LHCb detector, due to start datataking in 2022, will have to process an average data rate of 4 TB/s in real time. Because LHCb’s physics objectives require that the full detector information for every LHC bunch crossing is rea…

Evolution of the energy efficiency of LHCb’s real-time processing Open

R. Aaij, D. H. Cámpora Pérez, T. Colombo, C. Fitzpatrick, V. V. Gligorov , et al. · 2021

The upgraded LHCb detector, due to start datataking in 2022, will have to process an average data rate of 4 TB/s in real time. Because LHCb’s physics objectives require that the full detector information for every LHC bunch crossing is rea…

HL-LHC Computing Review: Common Tools and Community Software Open

T. K. Aarrestad, S. Amoroso, Markus Julian Atkinson, Joshua Bendavid, T. Boccali , et al. · 2020

Common and community software packages, such as ROOT, Geant4 and event generators have been a key part of the LHC's success so far and continued development and optimisation will be critical in the future. The challenges are driven by an a…

Opportunities in flavour physics at the HL-LHC and HE-LHC Open

A. Cerri, V. V. Gligorov, S. Malvezzi, Jorge Martin Camalich, J. Zupan , et al. · 2019

Motivated by the success of the flavour physics programme carried out over the last decade at the Large Hadron Collider (LHC), we characterize in detail the physics potential of its High-Luminosity and High-Energy upgrades in this domain o…

A 30 MHz software trigger for the LHCb Upgrade Open

C. Fitzpatrick · 2019

A roadmap for HEP software and computing R&D for the 2020s Open

J. Albrecht, A. A. Alves, G. Amádio, Giuseppe Andronico, Nguyen Anh-Ky , et al. · 2019

Design and performance of the LHCb trigger and full real-time reconstruction in Run 2 of the LHC Open

R. Aaij, S. Akar, J. Albrecht, M. Alexander, A. Alfonso Albero , et al. · 2019

© 2019 CERN for the benefit of the LHCb collaboration.. The LHCb collaboration has redesigned its trigger to enable the full offline detector reconstruction to be performed in real time. Together with the real-time alignment and calibratio…

Monitoring LHCb Trigger developments using nightly integration tests and a new interactive web UI Open

R. Currie, C. Fitzpatrick · 2019

The LHCb Performance Regression (LHCbPR) framework allows for periodic software testing to be performed in a reproducible manner. LHCbPR provides a JavaScript based web front-end service, built atop industry standard tools such as AngularJ…

Opportunities in Flavour Physics at the HL-LHC and HE-LHC Open

A. Cerri, V. V. Gligorov, S. Malvezzi, Jorge Martin Camalich, Jure Zupan , et al. · 2018

Motivated by the success of the flavour physics programme carried out over the last decade at the Large Hadron Collider (LHC), we characterize in detail the physics potential of its High-Luminosity and High-Energy upgrades in this domain o…

Opportunities in Flavour Physics at the HL-LHC and HE-LHC Open

V. V. Gligorov, S. Malvezzi, Jorge Martin Camalich, J. Zupan, L. Anderlini , et al. · 2018

Motivated by the success of the flavour physics programme carried out over\nthe last decade at the Large Hadron Collider (LHC), we characterize in detail\nthe physics potential of its High-Luminosity and High-Energy upgrades in this\ndomai…

Machine Learning in High Energy Physics Community White Paper Open

Kim Albertsson, Piero Altoè, Dustin Anderson, Michael Benjamin Andrews, Juan Pedro Araque Espinosa , et al. · 2018

Machine learning is an important applied research area in particle physics, beginning with applications to high-level physics analysis in the 1990s and 2000s, followed by an explosion of applications in particle and event identification an…

Using holistic event information in the trigger Open

Dylan Bourgeois, S. Stahl, C. Fitzpatrick · 2018

In order to achieve the data rates proposed for the future Run 3 upgrade of the LHCb detector, new processing models must be developed to deal with the increased throughput. For this reason, we aim to investigate the feasibility of purely …

Machine Learning in High Energy Physics Community White Paper Open

Kim Albertsson, Piero Altoè, Dustin Anderson, John Anderson, Michael Benjamin Andrews , et al. · 2018

Machine learning has been applied to several problems in particle physics research, beginning with applications to high-level physics analysis in the 1990s and 2000s, followed by an explosion of applications in particle and event identific…

Upgrade trigger & reconstruction strategy: 2017 milestone Open

J. Albrecht, Marianna Fontana, M. Schiller, Clemencic Marco, C. Fitzpatrick , et al. · 2018

The LHCb collaboration is currently preparing an update of the experiment to take data in Run 3 of the LHC. The dominant feature of this upgrade is a trigger-less readout of the full detector followed by a full software trigger. To make op…

HEP Community White Paper on Software trigger and event reconstruction: Executive Summary Open

J. Albrecht, K. Bloom, T. Boccali, A. Boveia, M. De Cian , et al. · 2018

Realizing the physics programs of the planned and upgraded high-energy physics (HEP) experiments over the next 10 years will require the HEP community to address a number of challenges in the area of software and computing. For this reason…

HEP Community White Paper on Software trigger and event reconstruction Open

J. Albrecht, K. Bloom, T. Boccali, A. Boveia, M. De Cian , et al. · 2018

Realizing the physics programs of the planned and upgraded high-energy physics (HEP) experiments over the next 10 years will require the HEP community to address a number of challenges in the area of software and computing. For this reason…

Upgrade trigger: Bandwidth strategy proposal Open

C. Fitzpatrick, Mika Anton Vesterinen, A. Dziurda, S. Meloni, Jonny Williams , et al. · 2017

This document describes a selection strategy for the upgrade trigger using charm signals as a benchmark. The Upgrade trigger uses a 'Run 2-like' sequence consisting of a first and second stage, in between which the calibration and alignmen…

Upgrade trigger: Biannual performance update Open

R. Aaij, M. Fontana, R. Le Gac, Emilia Anna Zacharjasz, R. Schwemmer , et al. · 2017

This document presents the performance of the LHCb Upgrade trigger reconstruction sequence, incorporating changes to the underlying reconstruction algorithms and detector description since the Trigger and Online Upgrade TDR. An updated ext…

Too much of a good thing: How to trigger in a signal-rich environment Open

C. Fitzpatrick · 2017

Large beauty and charm cross-sections make the LHC an ideal place to study the physics of heavy flavour, but the rate of signals of interest to the LHCb experiment, particularly after LS2, mean that a conventional trigger design…

Quenching the scintillation in CF4 Cherenkov gas radiator Open

T. Blake, C. D’Ambrosio, S. Easo, S. Eisenhardt, C. Fitzpatrick , et al. · 2015

CF4 is used as a Cherenkov gas radiator in one of the Ring Imaging Cherenkov detectors at the LHCb experiment at the CERN Large Hadron Collider. CF4 is well known to have a high scintillation photon yield in the near and far VUV, UV and in…

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