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2025-11-04
06:02
A Generalisable Generative Model for Multi-Detector Calorimeter Simulation / Raikwar, Piyush (CERN) ; Zaborowska, Anna (CERN) ; McKeown, Peter (CERN) ; Cardoso, Renato (CERN) ; Piorczynski, Mikolaj (Warsaw U. of Tech. (main)) ; Yeo, Kyongmin (IBM Watson Res. Ctr.)
Collider experiments, such as those at the Large Hadron Collider, use the Geant4 toolkit to simulate particle-detector interactions with high accuracy. [...]
arXiv:2509.07700. - 2025 - 31.
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2025-11-04
06:01
Automated computation of spin-density matrices and quantum observables for collider physics / Durupt, Valentin (Louvain U., CP3) ; Maltoni, Fabio (Louvain U., CP3 ; Bologna U. ; INFN, Bologna ; CERN) ; Mattelaer, Olivier (Louvain U., CP3)
We present a fully automated framework to compute production spin-density matrices for generic collider processes at tree level within \textsc{MadGraph5\_aMC@NLO}. [...]
IRMP-CP3-25-34 ; arXiv:2510.17730. - 2025 - 71.
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2025-11-04
06:01
Probing the Chern-Simons Portal at the HL-LHC through Displaced Vertices from W Boson Associated Production / Nourbakhsh, Mohammad (IPM, Tehran) ; Mohammadi Najafabadi, Mojtaba (IPM, Tehran ; CERN)
This study explores the Chern-Simons portal model, an extension of the Standard Model that introduces a massive neutral vector boson $X$ associated with a $U_X(1)$ gauge symmetry. [...]
arXiv:2509.04031. - 2025 - 19.
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2025-11-04
06:01
Hidden simplicity in the scattering for neutron stars and black holes / Aoude, Rafael (U. Edinburgh, Higgs Ctr. Theor. Phys.) ; Helset, Andreas (CERN)
Heavy particle effective theory applied to spinning black holes provides a natural framework in which propagators linearize and numerators exponentiate. [...]
arXiv:2509.04425. - 2025 - 5.
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2025-11-04
06:01
Afterpulse prediction for SUBMET experiment / Campagnari, Claudio (UC, Santa Barbara) ; Cho, Sungwoong (Korea U.) ; Choi, Suyong (Korea U.) ; Chung, Seokju (Korea U.) ; Citron, Matthew (Korea U. ; UC, Davis) ; De Los Santos, Ryan (Ohio State U.) ; De Roeck, Albert (CERN) ; Gastal, Martin (CERN) ; Ha, Seungkyu (Korea U.) ; Haas, Andy (New York U.) et al.
The SUB-Millicharge ExperimenT (SUBMET) investigates an unexplored parameter space of millicharged particles with mass $m_χ< $ 1.6 GeV/c$^2$ and charge $Q_χ< 10^{-3}e$. [...]
arXiv:2510.19724. - 2025 - 13.
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2025-11-04
06:01
Rapid event extraction and tensorial event adaption: Libraries for efficient access and generic reweighting of parton-level events and their implementation in the MadtRex module / Roiser, Stefan (CERN) ; Schöfbeck, Robert (Vienna, OAW) ; Wettersten, Zenny (CERN ; Vienna, OAW)
We present Rex and teaRex, C++17 libraries for efficient management of parton-level hard scattering event information and completely generic reweighting of such events, respectively. [...]
arXiv:2510.05100. - 2025 - 34.
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2025-11-04
06:01
New GPU developments in the Madgraph CUDACPP plugin: kernel splitting, helicity streams, cuBLAS color sums / Valassi, Andrea (CERN)
The first production release of the CUDACPP plugin for the Madgraph5_aMC@NLO generator, which speeds up matrix element (ME) calculations for leading-order (LO) QCD processes using a data parallel approach on vector CPUs and GPUs, was delivered in October 2024. [...]
arXiv:2510.05392. - 2025 - 18.
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2025-11-04
06:01
Valence $1s-0d$ proton vacancy of the $^{32}$Si ground state / Watwood, N (Argonne (main)) ; Hoffman, C R (Argonne (main)) ; Kay, B P (Argonne (main)) ; Tolstukhin, I A (Argonne (main)) ; Chen, J (SUSTech, Shenzhen) ; Tang, T L (Argonne (main)) ; Bazin, D (Michigan State U., East Lansing (main)) ; Ayyad, Y (U. Santiago de Compostela (main)) ; Beceiro-Novo, S (La Coruna U.) ; Freeman, S J (U. Manchester (main) ; CERN) et al.
The $^{32}$Si($^3$He,$d$)$^{33}$P reaction was studied in inverse kinematics at 6.3~MeV/$u$. [...]
arXiv:2510.05073. - 2025 - 9.
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2025-11-04
04:22
A Compact Two-Dimensional Radiation Detector for Educational Applications / Matsushita, Chiori (Unlisted) ; Nukiwa, Mihiro (ISCT, Tokyo ; Unlisted) ; Atobe, Aoi (Unlisted) ; Sasaki, Yuzuka (Unlisted) ; Sawai, Manami (Unlisted) ; Kono, Rikako (Unlisted ; Australian Natl. U., Canberra (main)) ; Esen, Seyma (CERN ; Istanbul U.) ; Schwinzerl, Martin (CERN ; Unlisted, DE) ; Tanaka, Kazuo S. (Waseda U.)
Recent advances in low-cost, portable cosmic-ray detectors have broadened citizen-science engagement in particle physics studies. [...]
arXiv:2509.06276. - 11.
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2025-11-04
04:22
The ANUBIS detector and its sensitivity to neutral long-lived particles / ANUBIS Collaboration
Long-lived particles (LLPs), i.e., particles with macroscopic lifetimes $τ>10$~ns, appear in various extensions of the Standard Model (SM) that address fundamental questions like the particulate nature of dark matter or baryogenesis. [...]
arXiv:2510.26932. - 31.
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