Workshop ATLAS-Brasil 2025

8 Sept 2025, 08:20 → 9 Sept 2025, 18:30 America/Sao_Paulo

Auditório CVT (IFBA)

Edmar Egidio Purcino De Souza (Federal University of Bahia (BR)), Eduardo Furtado De Simas Filho (Federal University of Bahia (BR)), Juan Lieber Marin (Federal University of Bahia (BR)), Paulo Cesar Machado De Abreu Farias (Federal University of Bahia (BR))

Monday 8 September

09:00 → 09:10 Opening

Convener: Juan Lieber Marin (Federal University of Bahia (BR))

09:10 → 09:40 Openning Talk

Ambientacao ATLAS

ambientacaoATLAS.pdf

09:40 → 10:40 Physics I

Convener: Marisilvia Donadelli (Universidade do Estado do Rio de Janeiro (BR))

09:40 RECENT ML DEVELOPMENTS USING GN2 IN THE SEARCH FOR HH → bbττ WITH RUN 2 AND PARTIAL RUN 3 DATA

Speakers: Marcia Begalli (Universidade do Estado do Rio de Janeiro (BR)), Marisilvia Donadelli (Universidade do Estado do Rio de Janeiro (BR)), Victor Almeida De Assis (Universidade do Estado do Rio de Janeiro (BR))

09082025_apresentacao_Workshop_Brasil_2025_vf.pdf

10:00 Collimated diphoton ressonances (a $\rightarrow \gamma \gamma$) status report

Speaker: Edmar Egidio Purcino De Souza (Federal University of Bahia (BR))

Edmar_diphotonRessonances_WATLASBrasil_08092025-1.pdf

10:20 Discussion

10:40 → 11:00 Break

11:00 → 12:00 Outreach

11:00 Outreach activities

Speaker: Marcia Begalli (Universidade do Estado do Rio de Janeiro (BR))

11:40 Discussion

12:00 → 13:30 Lunch

13:30 → 14:40 CrossTalk

Convener: Eduardo Furtado De Simas Filho (Federal University of Bahia (BR))

13:30 Crosstalk mitigation using autoencoders

Speaker: Icaro Nascimento Queiroz (UFBA Universidade Federal da Bahia)

Denoising Autoencoder.pdf

13:40 Crosstalk mitigation using convolutional neural networks

Speaker: Andre Rodrigues (Federal University of Bahia (BR))

CNN for Crosstalk Reduction - Preliminary Results.pdf

13:50 Development of new machine learning methods for crosstalk mitigation on ATLAS LAr calorimeter data

Speaker: Theo Cruz De Abreu Farias (Centre National de la Recherche Scientifique (FR))

Workshop_ Development of new machine learning methods for crosstalk mitigation on ATLAS LAr calorimeter data.pdf

14:00 Discussion

14:40 → 15:40 Energy Estimation I

Convener: Bernardo Sotto-Maior Peralva (Universidade do Estado do Rio de Janeiro (BR))

14:40 Improvements in TileCal energy estimation and impact on jet analysis using MC samples

Speakers: Bernardo Sotto-Maior Peralva (Universidade do Estado do Rio de Janeiro (BR)), Gustavo Libotte (Universidade do Estado do Rio de Janeiro (BR))

ATLASBrasilWorkshop.pdf

14:50 TileCal muon detection studies for ATLAS Phase-II upgrade

Speaker: Fabio Cardani Luna (Federal University of Juiz de Fora (BR))

Muon_Trigger_Performance.pdf

15:00 Real-time Pulse Simulator - Online Adjustable Parameters using ARM

Speaker: Vinicius Pires Diniz De Oliveira (Federal University of Juiz de Fora (BR))

Real-time Pulse Simulator - Online Adjustable Parameters using ARM.pdf

15:10 Discussion

15:40 → 16:00 Break

16:00 → 16:45 Energy Estimation II

Convener: Luciano Manhaes De Andrade Filho (Federal University of Juiz de Fora (BR))

16:00 Signal reconstruction based on ICA and MLE for high energy calorimeter systems

Speaker: Sarita Rimes 🎈 (Rio de Janeiro State University (BR))

workshop-ATLAS-Brasil-set2025-ICA_SaritaRimes.pdf

16:10 Automatic Pedestal Removal and Baseline Correction with PZC

Speaker: Thiago Paschoalin (Universidade Federal de Juiz de Fora)

Automatic Pedestal Removal and Baseline Correction with PZC.pdf

16:20 Sensitivity Analysis of the Baseline Shift Correction with PZC Pulse Preprocessing

Speaker: Tiago Quirino (Universidade do Estado do Rio de Janeiro (BR))

Workshop ATLAS-Brazil.pdf

16:30 Discussion

Tuesday 9 September

09:00 → 10:30 Trigger I: Electron and Photon Triggers

Convener: Juan Lieber Marin (Federal University of Bahia (BR))

09:00 Egamma Trigger - Lessons Learned from Run3

Speaker: Edmar Egidio Purcino De Souza (Federal University of Bahia (BR))

HLTEGamma_LessonsRun3_05052025-1.pdf

09:20 Electron Identification with ML using Ringers + Track Variables

Speaker: Sarita Rimes 🎈 (Rio de Janeiro State University (BR))

workshop-ATLAS-Brasil-set2025-QT_SaritaRimes.pdf

09:30 Photon Trigger Performance

Speaker: Juan Lieber Marin (Federal University of Bahia (BR))

atlasBrasil_photonTrigger.pdf

09:40 Run3 single / dielectron trigger perfomances with respect to data x mc differences

Speaker: Andre Malvezzi (Universidade do Estado do Rio de Janeiro (BR))

Workshop_Atlas_Brasil_2025_2.pdf

09:50 CNN-Rp Mapping for Electron Triggers

Speaker: Fredson Menezes Sumi Barreto

CNN-Rp_Fredson_apresentação-1.pdf

10:00 Discussion

10:30 → 10:50 Break

10:50 → 12:00 Trigger II: Trigger Calibration

Convener: Paulo Cesar Machado De Abreu Farias (Federal University of Bahia (BR))

10:50 Hyperparameters optimization for GBDT electron energy calibration

Speaker: Ricardo Messala Mascarenhas Costa (Federal University of Bahia (BR))

11:00 Electron Energy Calibration using Neural Networks

Speaker: Caroline Ribeiro Figueredo (Federal University of Rio de Janeiro (BR))

electron energy calibration using neural netwroks.pdf

11:10 Feature Extraction for a GBDT Electron Energy Calibration System

Speaker: Matheus Teruo Nishimoto (Federal University of Bahia (BR))

slidesApresentacao.pdf

11:20 Discussion

12:00 → 13:30 Lunch

13:30 → 15:00 Trigger III: Performance and R&D

Convener: Eduardo Furtado De Simas Filho (Federal University of Bahia (BR))

13:30 Shower Assymetries Studies Using Quarter-Rings in the Lorenzetti Simulator

Speaker: Ricardo Messala Mascarenhas Costa (Federal University of Bahia (BR))

13:40 Tracking System Simulation for the FCC

Speaker: Ms Catarina Brandao (Federal University of Bahia (BR))

09-09-2025 - Atlas Brasil - Catarina Brandao.pdf

09-09-2025 - Atlas Brasil - Catarina Brandao.pptx

13:50 Boosted Electrons Reconstruction and Identification in the Lorenzetti Showers

Speaker: Lucas Barra De Aguiar Nunes (Federal University of Rio de Janeiro (BR))

2025_09_09_atlas_brasil_workshop.pdf

14:00 New Calorimeters: FCC-ee IDEA detector contribution

Speaker: Jonh Brian Lemos (Federal University of Bahia (BR))

[ATLAS Brasil] New Calorimeters_ FCC-ee IDEA detector contribution.pdf

14:10 Information Geometry for Trigger PDFs distortion

Speaker: Micael Verissimo De Araujo (Univ. Federal do Rio de Janeiro (BR))

atlas_workshop_09092025.pdf

14:20 Discussion

15:00 → 15:15 Break

15:15 → 16:20 Trigger IV: L0 Global Trigger

Convener: Edmar Egidio Purcino De Souza (Federal University of Bahia (BR))

15:15 The upgrade of the ATLAS TDAq system for the HL- LHC

Speaker: Edmar Egidio Purcino De Souza (Federal University of Bahia (BR))

Edmar_WPATLASBRASIL_HL-LHC_09092025.pdf

15:30 Ringer Algorithm for L0 Global Trigger

Speaker: Isabella Silva Ferreira (Federal University of Rio de Janeiro (BR))

Workshop_ATLAS_Brasil_Isabella_09.09.25.pdf

15:40 NeuralRinger - L0 Hardware implementation

Speaker: Nestor Dias Pereira Neto (Federal University of Bahia (BR))

NeuralRinger-workshop_AtlasBrasil-09-09-25.pdf

15:50 Updates on the FPGA implementation of the Neural Ringer

Speaker: Igo Amauri Dos Santos Luz (Federal University of Bahia (BR))

16:00 Discussions

16:20 → 16:30 Closure

Speaker: Juan Lieber Marin (Federal University of Bahia (BR))

16:30 → 17:30 Cluster Organization

Speakers: Augusto Santiago Cerqueira (Federal University of Juiz de Fora (BR)), Eduardo Furtado De Simas Filho (Federal University of Bahia (BR)), Jose Seixas (Federal University of Rio de Janeiro (BR)), Marco Lisboa Leite (Universidade de Sao Paulo (USP) (BR))