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2025-04-17
04:17

The path towards measuring the gravitational field of proton bunches at accelerators / Braun, Daniel (Tubingen U.) ; Cai, Rongrong (CERN) ; Hermes, Pascal (CERN) ; Marchese, Marta Maria (IST, Austria) ; Nimmrichter, Stefan (Siegen U.) ; Pfeifer, Christian (Bremen U. ; Transilvania U., Brasov) ; Rätzel, Dennis (Bremen U.) ; Redaelli, Stefano (CERN) ; Ulbricht, Hendrik (Southampton U.)
The Newtonian law describing the gravitational interaction of non-relativistic (slowly moving) gravitating matter, has been tested in many laboratory experiments with very high precision. [...]
arXiv:2504.10942. - 8.
Fulltext

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2025-04-17
04:16

Probing Long-Range Forces in Neutrino Oscillations at the ESSnuSB Experiment / ESSnuSB Collaboration
Neutrino oscillations constitute an excellent tool to probe physics beyond the Standard Model. [...]
arXiv:2504.10480. - 31.
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2025-04-17
04:04

t-channel dark matter at the LHC / Arina, Chiara (Louvain U., CP3) ; Fuks, Benjamin (Paris, LPTHE) ; Panizzi, Luca (Calabria U. ; INFN, Cosenza) ; Baker, Michael J. (Massachusetts U., Amherst) ; Cornell, Alan S. (Johannesburg U.) ; Heisig, Jan (RWTH Aachen U.) ; Maier, Benedikt (Imperial Coll., London) ; Pedro, Rute (LIP, Lisbon) ; Trischuk, Dominique (Caltech, Pasadena (main) ; Brandeis U.) ; Agin, Diyar (Paris, LPTHE) et al.
This report, summarising work achieved in the context of the LHC Dark Matter Working Group, investigates the phenomenology of

t

$t$ -channel dark matter models, spanning minimal setups with a single dark matter candidate and mediator to more complex constructions closer to UV-complete models. [...]
CERN-LPCC-2025-001 ; IRMP-CP3-25-07 ; TTK-25-07 ; arXiv:2504.10597. - 101.
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2025-04-16
04:08

Revealing the harmonic structure of nuclear two-body correlations in high-energy heavy-ion collisions / Duguet, Thomas (IRFU, Saclay) ; Giacalone, Giuliano (CERN) ; Jeon, Sangyong (McGill U.) ; Tichai, Alexander (Darmstadt, Tech. U. ; Darmstadt, EMMI ; Heidelberg, Max Planck Inst.)
Smashing nuclei at ultrarelativistic speeds and analyzing the momentum distribution of outgoing debris provides a powerful method to probe the many-body properties of the incoming nuclear ground states. [...]
arXiv:2504.02481. - 11.
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2025-04-16
04:07

Spectroscopy of Strange Mesons and First Observation of a Strange Crypto-Exotic State with $J^P=0^-$ / COMPASS Collaboration
We measured the strange-meson spectrum in the scattering reaction

K^{-} + p \to K^{-} π^{-} π^{-} + p

$K^{-}+p \rightarrow K^{-}\pi^{-}\pi^{-}+p$ with the COMPASS spectrometer at CERN. [...]
CERN-EP-2025-086 ; arXiv:2504.09470. - 26 p, 26.
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2025-04-16
04:07

Logarithmic angle-dependent gauge transformations at null infinity / Fuentealba, Oscar (U. Arturo Prat, Iquique ; Intl. Solvay Inst., Brussels) ; Henneaux, Marc (Intl. Solvay Inst., Brussels ; CERN ; College de France)
Logarithmic angle-dependent gauge transformations are symmetries of electromagnetism that are canonically conjugate to the standard

O (1)

$\mathcal O(1)$ angle-dependent

u (1)

$u(1)$ transformations. [...]
arXiv:2504.05385. - 61.
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2025-04-16
04:06

Fast Jet Tagging with MLP-Mixers on FPGAs / Sun, Chang (Caltech) ; Ngadiuba, Jennifer (Fermilab) ; Pierini, Maurizio (CERN) ; Spiropulu, Maria (Caltech)
We explore the innovative use of MLP-Mixer models for real-time jet tagging and establish their feasibility on resource-constrained hardware like FPGAs. [...]
FERMILAB-PUB-25-0180-PPD ; arXiv:2503.03103. -
Fermilab Library Server - Fulltext - Fulltext

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2025-04-16
04:04

Comparison of smoothening flows for the topological charge in QCD-like theories / Butti, Pietro (Southern Denmark U., CP3-Origins) ; Della Morte, Michele (Southern Denmark U., CP3-Origins) ; Jäger, Benjamin (Southern Denmark U., CP3-Origins ; U. Southern Denmark, Odense, DIAS) ; Martins, Sofie (Southern Denmark U., CP3-Origins) ; Tsang, J. Tobias (CERN)
We investigate properties of the topological charge for several SU(NC) gauge field ensembles for NC = 4, 5, 6 with a single fermion in the two-index anti-symmetric representation, covering multiple lattice spacings at otherwise approximately constant physical parameters. [...]
CERN-TH-2025-079 ; arXiv:2504.10197. - 9.
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2025-04-15
12:53

CMS Inner Tracker Upgrade for the HL-LHC Design, Development, and Production Status / Kuo, Chin-chia (Hamburg U.) /CMS Collaboration
The High Luminosity Large Hadron Collider operation will push the CMS experiment to its limits, with an instantaneous peak luminosity of

7.5 \times 10^{34} {cm}^{- 2} s^{- 1}

$7.5 \times 10^{34} \, \text{cm}^{-2}\text{s}^{-1}$ and an integrated luminosity of

300 {fb}^{- 1}

$300 \, \text{fb}^{-1}$ per year. This environment will expose the CMS Inner Tracker (IT) pixel detector at the center of CMS to unprecedented levels of radiation, with a 1 MeV neutron equivalent fluence of

Φ_{eq} = 2.6 \times 10^{16} {cm}^{- 2}

$\Phi_{\text{eq}} = 2.6 \times 10^{16} \, \text{cm}^{-2}$ and a total ionizing dose of

13 MGy

$13 \, \text{MGy}$ after

3000 {fb}^{- 1}

$3000 \, \text{fb}^{-1}$ of integrated luminosity. [...]
CMS-CR-2025-084.- Geneva : CERN, 2025 - 5 p. Fulltext: PDF;
In : 17th Vienna Conference on Instrumentation (VCI2025), Vienna, Austria, 17 - 21 Feb 2025

Notice détaillée

2025-04-15
10:00

CMS FlashSim end-to-end simulation with ML / Rizzi, Andrea (INFN, Pisa ; Pisa U.) /CMS Collaboration
Detailed event simulation at the LHC is taking a large fraction of computing budget.CMS developed an end-to-end ML based simulation that can speed up the time for production of analysis samples of several orders of magnitude with a limited loss of accuracy. As the CMS experiment is adopting a common analysis level format, the NANOAOD, for a larger number of analyses, such an event representation is used as the target of this ultra fast simulation that we call FlashSim. [...]
CMS-CR-2025-027.- Geneva : CERN, 2025 - 13 p. Fulltext: PDF;
In : 27th International Conference on Computing in High Energy & Nuclear Physics, Kraków, Poland, 19 - 25 Oct 2024

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