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How to support early career scientists in a large collaboration such as ATLAS
No full textEquity, diversity and inclusion are vital for effective collaboration within an organisation like ATLAS, and the Early Career Scientists Board (ECSB) is an essential part of ATLAS's efforts in this area. The ECSB's mandate includes advising the administrative bodies of the ATLAS collaboration, gathering regular feedback, and proposing specific action items that improve early-career scientists' integration and general well-being. To do so, the ECSB continuously organises workshops and events to provide a platform for early-career scientists to develop their skills and careers in science more effectively and works to identify and eliminate possible obstacles that may hinder the growth of early-career researchers in the ATLAS collaboration. But it's not just about career development: the ECSB believes personal development should happen regardless of individual background, and everyone in ATLAS should feel heard, respected, and valued. This presentation highlights the importance of supporting young scientists in creating an inclusive community
An EFT study of the process at the FCC-
No full textWe carry out an Effective Field Theory (EFT) study of the process in the 4b + 3 \ell + \ge 2j + \slashed{E}_T final state. This process can uniquely probe the couplings arising from higher dimensional EFT operators and can also provide bounds on coupling deviations. We highlight the importance of the proposed proton-proton Future Circular Collider (FCC-) to study this process and then perform a complete collider analysis by examining the relevant background processes. This allows us to determine the FCC- sensitivity to probe anomalous couplings
ATLAS Tile Calorimeter Phase-II Upgrade: Current Status and Electronics Certification with Portable Readout Module “PROMETEO”
No full textThe High-Luminosity LHC (HL-LHC) will extend the physics reach of the ATLAS experiment, bringing new opportunities for discovery and measuring the properties of particles. To achieve this, the HL-LHC requires a complete upgrade of the ATLAS detector, including its Tile Calorimeter (TileCal). TileCal is a sampling hadronic calorimeter covering the central region of the ATLAS experiment in a pseudo rapidity range of |η| < 1.7. It consists of thin steel plates and about 460,000 scintillating tiles configured into 5182 cells, each viewed by two photomultipliers (PMTs). The Phase-II upgrade of TileCal will include a complete replacement of its on- and off-detector electronics, as well as 10% of the PMTs in most exposed regions. PMT signals from every TileCal channel will be digitized and sent directly to the back-end electronics, where the signals are reconstructed, stored, and sent to the first level of trigger at a rate of 40 MHz. This will provide better precision of the calorimeter signals used by the trigger system and will allow the development of more complex trigger algorithms. This large-scale replacement presents a considerable challenge in terms of testing and certification of the new electronics. To address this, the Portable ReadOut ModulE for Tile Electronics (PROMETEO) system has been developed as a portable tool for testing and certifying both the on- and off-detector electronics. While PROMETEO was originally designed primarily for electronics certification, research and development efforts have revealed a clear need for fast and precise optical testing of both the current and new PMTs. As a result, future developments of PROMETEO will incorporate optical measurement capabilities, including the ability to measure relative quantum efficiency and dark current for all the PMTs. This talk will present the current status of the TileCal Phase-II upgrade project, along with expected performance characteristics. In addition, the PROMETEO system for testing and certifying of new electronics and its future enhancements will be discussed
Black Hole Science Opportunities With Radio Interferometry
No full textThe first Event Horizon Telescope images of the supermassive black hole M87* display a bright ring encircling the event horizon, which appears as a dark patch in its surrounding emission. But Einstein's theory of general relativity predicts that within these images there also lies a thin “photon ring” of light that orbited the black hole before escaping its gravity, carrying information about its spacetime properties and, in particular, its spin. I will describe a NASA Small Explorers Mission being proposed next year: the Black Hole Explorer. BHEX will use space-ground interferometry to create a telescope larger than the Earth and produce the sharpest images in the history of astronomy. By resolving the photon ring, these images will address fundamental questions in black hole physics, including what a black hole looks like, and how fast the black hole Sgr A* at the center of our own galaxy is spinning. BHEX will also target dozens of additional supermassive black holes and measure the magnetic fields suspected to generate their relativistic jets, shedding new light on the mechanism that powers the brightest and most efficient engines in the universe.</p
Open Science Fair 2025
No full textUnderstanding the impacts of Open Science (OS) and the extent to which they materialise requires a solid methodological framework, which is not yet fully established. The Cost-Benefit Analysis (CBA) framework for OS - developed (part of the PathOS project) - aims to provide a systematic and comprehensive approach to quantifying the impacts of OS. This framework goes beyond simply evaluating benefits; it incorporates associated costs and enables meaningful comparisons with scenarios in which OS is not implemented.
This presentation will illustrate key elements of this framework, focusing on the types of costs (e.g.,set-up and maintenance costs) and benefits (e.g.,costs saved) specifically related to open science, and details the methodology to quantify these elements within the context of a CBA. Real-world applications of this framework will be used to offer practical insights into its utility and effectiveness. In particular, the presentation will draw on the use of the CBA to assess the value of:
UniProt, a widely used and freely accessible open database for protein sequence and functional information.
RCAAP, a network of open institutional repositories involving multiple Portuguese research institutions.
This presentation will show how the CBA framework can support policy and funding decisions and demonstrate the value of OS practices in research infrastructures. It will also shed light on the challenges that may arise when applying this framework and offer recommendations for potential mitigation strategies and actions. These insights are intended to enhance the utility of the framework as a valuable tool for the future evaluation of OS resources
Recent LHCb probes for -quark hadronization studies
No full textThe differences in hadron chemistry observed at machines versus hadron colliders may indicate that the mechanisms by which partons evolve into visible matter are not universal. In particular, the presence of many other quarks produced in the underlying event may affect the hadronization process. With full particle ID, precision vertexing, and a high rate DAQ, the LHCb detector is uniquely well suited to study the hadronization of heavy quarks. In this contribution, LHCb data on hadronization of heavy charm and bottom quarks, including the first results on the b baryon-to-meson production ratio versus charged particle multiplicity, will be presented
Powerful Yukawas
No full textWe introduce a class of models where the masses of the light Standard Model fermions are due to an Effective Field Theory operator that appears beyond dimension-4 in the power counting expansion, resulting in a `Powerful Yukawa'. The effective Yukawa coupling structure is UV-completed using a collective symmetry breaking pattern in the flavour sector, which we dub `Sprouted Symmetry Breaking.' The irreducible signature is an enhanced Higgs coupling to the light Standard Model fermions
Restricted Council - Two-Hundred-and-Twenty-Fifth Session
No full textRestricted Council - Two-Hundred-and-Twenty-Fifth Sessio
Signature of the Collaboration Agreement for the renewal of Gentner doctoral student scholarships at CERN
No full textDr Andrea Fischer, Deputy Director-General, Large Facilities and Basic Research Directorate, Federal Ministry of Research, Technology and Space, Federal Republic of Germany, on the occasion of the Signature of the Collaboration Agreement for the renewal of Gentner doctoral student scholarships at CER
