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CERN Preprints

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2025-10-30
04:26
Quantum Information at the Electron-Ion Collider / Cheng, Kun (Pittsburgh U.) ; Han, Tao (Pittsburgh U.) ; Trifinopoulos, Sokratis (MIT, Cambridge, CTP ; CERN ; Zurich U.)
We investigate quantum-information-theoretic observables in electron-proton scattering at the Electron-Ion Collider (EIC). [...]
PITT-PACC-2509 ; CERN-TH-2025-205 ; MIT-CTP/5943 ; arXiv:2510.23773.
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2025-10-30
04:24
Characterisation of the first wafer-scale prototype for the ALICE ITS3 upgrade: the monolithic stitched sensor (MOSS) / Abdelrahman, Omar (Munich, Tech. U.) ; Rinella, Gianluca Aglieri (CERN) ; Aglietta, Luca (Turin U. ; INFN, Turin) ; Alocco, Giacomo (Turin U. ; INFN, Turin) ; Antonelli, Matias (Trieste U. ; INFN, Trieste) ; Baccomi, Roberto (INFN, Trieste) ; Barile, Francesco (Bari U. ; INFN, Bari) ; Becht, Pascal (Warsaw U.) ; Benotto, Franco (INFN, Turin) ; Beolè, Stefania Maria (Turin U. ; INFN, Turin) et al.
This paper presents the characterisation and testing of the first wafer-scale monolithic stitched sensor (MOSS) prototype developed for the ALICE ITS3 upgrade that is to be installed during the LHC Long Shutdown 3 (2026-2030). [...]
arXiv:2510.11463.
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2025-10-30
04:24
Visio-Verbal Teleimpedance Interface: Enabling Semi-Autonomous Control of Physical Interaction via Eye Tracking and Speech / Jekel, Henk H.A. (Delft Tech. U.) ; Rosales, Alejandro Díaz (Delft Tech. U. ; CERN) ; Peternel, Luka (Delft Tech. U.)
The paper presents a visio-verbal teleimpedance interface for commanding 3D stiffness ellipsoids to the remote robot with a combination of the operator's gaze and verbal interaction. [...]
arXiv:2508.20037.
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2025-10-30
04:22
Sub-GeV dark matter and multi-decay signatures from dark showers at beam-dump experiments / Bernreuther, Elias (UC, San Diego) ; Hemme, Nicoline (KIT, Karlsruhe, IKP ; KIT, Karlsruhe, TTP) ; Kahlhoefer, Felix (KIT, Karlsruhe) ; Kulkarni, Suchita (Graz U.) ; Ovchynnikov, Maksym (CERN)
In models of strongly-interacting dark sectors, the production of dark quarks at accelerators can give rise to dark showers with multiple dark mesons in the final state. [...]
CERN-TH-2025-215 ; P3H-25-083 ; TTP25-039 ; arXiv:2510.23696.
- 12.
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2025-10-29
05:00
Exploring the magnetic landscape of easily-exfoliable two-dimensional materials / Haddadi, Fatemeh (Ecole Polytechnique, Lausanne) ; Campi, Davide (Milan Bicocca U.) ; Santos, Flaviano dos (PSI, Villigen ; Ecole Polytechnique, Lausanne) ; Mounet, Nicolas (Ecole Polytechnique, Lausanne ; CERN) ; Ponet, Louis (Ecole Polytechnique, Lausanne) ; Marzari, Nicola (Ecole Polytechnique, Lausanne) ; Gibertini, Marco (U. Modena (main) ; Neuroscience Institute, Italy)
Magnetic materials often exhibit complex energy landscapes with multiple local minima, each corresponding to a self-consistent electronic structure solution. [...]
arXiv:2509.09531.
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2025-10-29
04:59
A Dynamic Energy-Based Hysteresis Model for Pulsed-Operated Fast-Ramping Magnets / Moll, Dominik (Darmstadt, Tech. U.) ; D'Angelo, Laura A.M. (Darmstadt, Tech. U.) ; De Gersem, Herbert (Darmstadt, Tech. U.) ; Boattini, Fulvio (CERN) ; Bottura, Luca (CERN) ; Gast, Marco (KIT, Karlsruhe)
Due to the strongly nonlinear behavior of ferromagnetic yokes, the numerical analysis of fast-ramping magnets is highly cumbersome and, therefore, in practice overly simplified by means of anhysteretic material descriptions and a posteriori loss formulae. [...]
arXiv:2509.04115.
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2025-10-29
04:37
Constrained instantons in scalar field theories / Elder, Benjamin (Imperial Coll., London) ; Gawrych, Kinga (Imperial Coll., London) ; Rajantie, Arttu (CERN ; Imperial Coll., London)
Instantons, localised saddle points of the action, play an important role in describing non-perturbative aspects of quantum field theories, for example vacuum decay or violation of conservation laws associated with anomalous symmetries. [...]
CERN-TH-2025-211 ; Imperial-TP-2025-KG-1 ; arXiv:2510.21922.
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2025-10-28
06:13
Measurement of the ratio of the B$_\mathrm{c}^+$ $\to$ J/$\psi$ $\tau^+ν_\tau$ and B$_\mathrm{c}^+$ $\to$ J/$\psi$ $\nu^+ν_\nu$ branching fractions using three-prong $\tau$ lepton decays / CMS Collaboration
The ratio between the B$_\mathrm{c}^+$$\to$ J/$ψ$$τ^+ν_τ$ and B$_\mathrm{c}^+$$\to$ J/$ψ$$μ^+ν_μ$ branching fractions is measured using a data sample of proton-proton collisions collected by CMS at a center-of-mass energy of 13 TeV in the years 2016$-$2018 and corresponding to an integrated luminosity of 138 fb$^{-1}$. [...]
arXiv:2510.21559 ; CMS-BPH-23-001 ; CERN-EP-2025-196.
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2025-10-28
05:00
TeraAgent: A Distributed Agent-Based Simulation Engine for Simulating Half a Trillion Agents / Breitwieser, Lukas (ETH, Zurich (main)) ; Hesam, Ahmad (Delft Tech. U.) ; Yağlıkçı, Abdullah Giray (ETH, Zurich (main)) ; Sadrosadati, Mohammad (ETH, Zurich (main)) ; Rademakers, Fons (CERN) ; Mutlu, Onur (ETH, Zurich (main))
Agent-based simulation is an indispensable paradigm for studying complex systems. [...]
arXiv:2509.24063.
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2025-10-28
05:00
Federation of Agents: A Semantics-Aware Communication Fabric for Large-Scale Agentic AI / Giusti, Lorenzo (CERN) ; Werner, Ole Anton (CERN) ; Taiello, Riccardo (CERN) ; Costa, Matilde Carvalho (CERN) ; Tosun, Emre (CERN) ; Protani, Andrea (CERN) ; Molina, Marc (CERN) ; de Almeida, Rodrigo Lopes (CERN) ; Cacace, Paolo (CERN) ; Santos, Diogo Reis (CERN) et al.
We present Federation of Agents (FoA), a distributed orchestration framework that transforms static multi-agent coordination into dynamic, capability-driven collaboration. [...]
arXiv:2509.20175.
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