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Rakhi Mahbubani (Rudjer Boskovic Institute (HR))08/07/2026, 16:15EITHER 15 minute talk or 5 minute 'flash' talk
We give an overview of the first instance of the Sustainability Conference for Responsible Research Computing (SC4RC). This conference took place from 4th-8th May at CERN, with the aim of creating a space where knowledge on environmentally sustainable research computing could be shared across different disciplines, and progress could be coordinated through networks created during the...
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Veronique Boisvert (Royal Holloway, University of London)08/07/2026, 16:3015 minute talk
The latest European Strategy Update (ESUPP) has recently released its recommendations for the shorter and longer term future of particle physics, including deliberations on the next large energy frontier collider machine. Taking into account several sustainability-themed inputs, the recommendations include some focused on the sustainability of the HEP field. I will present the ESUPP...
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Catharina Vaendel (Nikhef)08/07/2026, 16:4515 minute talk
Nikhef is the national high-energy physics laboratory in the Netherlands. As an institute, Nikhef intends to be climate neutral by 2035. The โSustainable Nikhef Roadmapโ details how the institute intends to achieve this ambition along the five lines of travel, energy for the building, waste, behaviour and environmental impact of research. A carbon footprint study shows that a number of...
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Mr William van Sprolant (CvS รฉnergies sร rl)08/07/2026, 17:00EITHER 15 minute talk or 5 minute 'flash' talk
The ULISSE project originated from the authorโs Masterโs thesis at the Swiss Federal Institute of Technology in Lausanne (EPFL, 1993โ1995), which focused on CERNโs massive waste heat recovering to correct the winter temperature drop of Genevaโs drinking water network (CORSAIRE โfree heatingโ process, i.e. without a heat pump). A year after, this was **linked to a sub-lake seasonal heat...
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Julie Hogan (Brown University, Bethel University (US)), Rakhi Mahbubani (Rudjer Boskovic Institute (HR)), Sabine Kraml (LPSC Grenoble), Zach Marshall (Lawrence Berkeley National Lab. (US))08/07/2026, 17:1515 minute talk
The LHC physics programme involves a vast amount of Monte Carlo event simulation. This contribution reviews current efforts towards sharing the generated events as Open Data. Open Event Generation helps reduce duplication of effort and resource consumption, and benefits the whole High Energy Physics community. We give examples of use cases and user experiences, discuss financial and...
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Dr Lachlan Milligan (University of Birmingham)08/07/2026, 17:30EITHER 15 minute talk or 5 minute 'flash' talk
Rare-event search experiments are continuously extending their sensitivities to unprecedented levels. Achieving these feats requires increasingly small backgrounds, partly as a result of improved shielding schemes that can suppress external backgrounds by several orders of magnitude. Detailed detector and shielding simulations are required to attain a good understanding of experimental...
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Jiahui Zhuo (Univ. of Valencia and CSIC (ES))08/07/2026, 17:4515 minute talk
In this talk we introduce the energy efficiency as a new metric for evaluating both hardware platforms based on Graphic Processor Units (GPU), and algorithm optimisations at High Energy Physics (HEP) experiments. We develop a method to compute the energy efficiency for the case of the first high level trigger (HLT1) of the LHCb experiment, relating the throughput with GPU specifications such...
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Henry Day-Hall (desy)08/07/2026, 18:0015 minute talk
Simulation is a major computational expense in HEP - calorimeter simulation in particular drives the overall energy cost of our physics analysis. Future detectors will include more detailed calorimeters than ever, and the data analysis will require unprecedented statistics from simulation.
Fast generative models developed by our group are redefining the possibilities; creating simulations...
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Natalia Diana Szczepanek (CERN)09/07/2026, 14:4515 minute talk
The Worldwide LHC Computing Grid (WLCG) provides the distributed computing infrastructure required to support both LHC and non-LHC experiments. With the upcoming HL-LHC era, the expected increase in computing demand makes power efficiency and sustainability increasingly important challenges for the HEP community. However, monitoring power consumption at the level of grid job slots remains a...
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Federico Ronchetti (CERN)09/07/2026, 15:00EITHER 15 minute talk or 5 minute 'flash' talk
Operational challenges of the Event Processing Nodes GPU farm at ALICE Experiment
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F. Ronchetti (CERN), G. Erba (Goethe U.) on behalf of the ALICE Collaboration
The ALICE Collaboration Event Processing Nodes (EPN) farm is a high-density GPU HPC infrastructure designed for real-time reconstruction of 50 kHz PbโPb collisions during CERN LHC Run 3. Comprising 350 nodes and 2800 GPUs and... -
Ms Jesica Sabau (University of Sheffield)09/07/2026, 15:15EITHER 15 minute talk or 5 minute 'flash' talk
This contribution investigates carbon aware compute scheduling using the ATLAS experiment at the Large Hadron Collider (LHC) as an example case. The Worldwide LHC Computing Grid (WLCG) consumes approximately 1.25 TWh of energy per year during LHC runs, with computing jobs dispatched immediately regardless of the carbon intensity of the local electricity grid. The Sustainable Queue is...
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Joao Pinheiro (Universidade do Estado do Rio de Janeiro (BR))09/07/2026, 15:3015 minute talk
The Compact Muon Solenoid (CMS) is one of the two general-purpose experiments at the Large Hadron Collider (LHC), performing precision measurements of Standard Model processes and searches for new physics. The CMS Muon System includes more than 1,000 Resistive Plate Chambers (RPCs), gaseous detectors that provide nanosecond-level time resolution, essential for muon triggering and...
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Muhammad Farooq (University of New Hampshire, Durham, NH, US)09/07/2026, 15:4515 minute talk
The University of New Hampshire Nuclear Physics Polarized Target Group operates an advanced polarized target system for high-precision nuclear physics experiments. These experiments require a combination of low-temperature cryogenic operation, strong magnetic fields, nuclear magnetic resonance polarimetry, and a dedicated millimeter-wave microwave system for dynamic nuclear polarization. A...
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Ilaria Vai (Pavia University and INFN (IT))10/07/2026, 15:0015 minute talk
In recent years, CERN has implemented various strategies to minimize the usage of greenhouse gases (GHG) and prevent their release into the atmosphere. Among these, CF4 plays a significant role, accounting for approximately 20% of CERNโs direct GHG emissions. Mitigation strategies have included the research into environmentally friendly gas mixtures for detectors and the development of gas...
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RPC EcoGas@GIF++ Collaboration10/07/2026, 15:1515 minute talk
Gaseous detectors play a crucial role in high energy physics experiments. Their operation often relies on fluorinated gases with a very high Global Warming Potential (GWP). As environmental concerns grow and regulations become increasingly stringent, the development of sustainable gas mixtures has become a global priority.
Resistive Plate Chambers (RPCs) operated in avalanche mode typically...
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Liliana Congedo10/07/2026, 15:3015 minute talk
Resistive Plate Chambers (RPCs) have been widely employed in HEP experiments over the past decades for muon triggering and identification thanks to their low cost per unit area and excellent performance in terms of detection efficiency, as well as space and time resolution. The standard gas mixture for RPCs operated in avalanche mode is primarily based on R134a, a greenhouse gas, whose usage...
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Giorgia Proto (Max Planck Society (DE))10/07/2026, 16:0015 minute talk
The Resistive Plate Chambers (RPC) are gaseous detectors with excellent timing performance and are used for triggering on muons in the LHC experiments. They operate with the standard gas mixture, composed of C2H2F4/i -C4H10/SF6, because it allows the detector operation in avalanche mode, as required by the high-luminosity collider experiments. The gas density, the low current and the...
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Sinem Simsek (Istinye University (TR))10/07/2026, 16:1515 minute talk
The muon trigger system of the ATLAS experiment at the CERN Large Hadron Collider relies on about 3700 Resistive Plate Chambers (RPCs) operated in avalanche mode with a gas mixture based on R134a, i-CโHโโ, and SFโ. While this mixture has provided stable operation, high efficiency, and excellent time resolution since 2009, it presents two major limitations for long-term operation: the...
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Dimitra Spathara (University of Birmingham)10/07/2026, 16:3015 minute talk
The quest to directly detect dark matter and unravel the nature of neutrinos has driven the development of experimental techniques with unprecedented sensitivity, placing extreme demands on detector-material-induced backgrounds. As a result, the choice of construction materials, particularly those in direct contact with the target medium, has become a critical limiting factor. Electroformed...
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Julien Faivre (Centre National de la Recherche Scientifique (FR))10/07/2026, 16:4515 minute talk
The climate change is, with the finite amounts of resources and the loss in biodiversity, one of the major socio-ecological problems faced by humanity. They have been recognized as urgent matters by international bodies, and regular national recommendations or international agreements set scopes to be reached in the next few decades or even years. As these scopes appear as simultaneously...
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Falastine Abusaif (KIT)10/07/2026, 17:0015 minute talk
Sustainability is an increasing priority for large research infrastructures (RIs), driven by high energy demand, limited material resources, climate objectives, and rising expectations from society and funding agencies. As energy-intensive facilities, RIs must ensure that scientific performance is aligned with responsible environmental practices, supported by robust and comparable methods for...
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Nuno Elias (European Spallation Source (ERIC))10/07/2026, 17:1515 minute talk
As large-scale research infrastructures face increasing pressure to minimise their environmental footprint, the EU-funded Innovate for Sustainable Accelerating Systems (iSAS) programme aims to develop and integrate energy-efficient technologies into superconducting accelerators. Within iSAS, Work Package 5 (WP5) focuses on establishing a roadmap for sustainable cryomodule design by...
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Mr Michael Sparks (The University of Manchester (GB)), Mr Mattias Evans (University of Manchester), Mr Oluwole Delano (University of Manchester)10/07/2026, 17:3015 minute talk
GreenPhysECS is an exploratory project investigating whether the Entity-Component-System (ECS) architectural model can make parallel, energy-aware research software more accessible to early-career researchers. ECS - widely used in the games industry - has seen little application in research. This project examines whether adopting ECS from the outset helps novice developers produce...
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Mr Roman Dandoy (Universite de Liege (BE))10/07/2026, 17:4515 minute talk
As the global energy demand of data centers continues to rise, understanding and mitigating their environmental impacts has become a major challenge. This presentation provides a Life Cycle Assessment (LCA) of the LHCb detector, with a particular focus on the implications of the LHCb Upgrade II.
This work examines how the upcoming changes implied by Upgrade II of the LHCb experiment may...
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Andreas Ralph Redelbach (Goethe University Frankfurt (DE))10/07/2026, 18:0015 minute talk
Measures towards an increased awareness of sustainability in the scientific community of research on universe and matter (ErUM) are outlined. Building upon an action plan defined in 2023, a number of points have been identified to be reached at different time-scales, including, for example, monitoring of energy consumption at computing job level, designing software for reduced energy...
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