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The Preprints collection aims to cover as far as possible all the grey literature in particle physics and its related technologies. The collection contains something like 400,000 documents, out of which about 50% can be accessed electronically. The documents originate from a variety of institutes all over the world. The collection, currently available, starts in 1979 and it has a full coverage of the arXiv.org e-Print archive since its beginning in 1991.
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2025-12-06
04:21
Dynamical Love Numbers for Black Holes and Beyond from Shell Effective Field Theory / Kosmopoulos, Dimitrios (CERN) ; Perrone, Davide (U. Geneva (main)) ; Solon, Mikhail (UCLA)
We construct a novel effective field theory for a compact body coupled to gravity, whose key feature is that the dynamics of gravitational perturbations is explicitly determined by known solutions in black hole perturbation theory in four dimensions. [...]
CERN-TH-2025-247 ; arXiv:2512.04002. - 5.
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2025-12-06
04:20
Powerful Yukawas / Cohen, Timothy (CERN ; Ecole Polytechnique, Lausanne ; Oregon U.) ; McCullough, Matthew (CERN) ; Weiner, Neal (CERN ; New York U. (main))
We 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'. [...]
CERN-TH-2025-227 ; arXiv:2512.04270. - 12.
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2025-12-06
04:20
How large can lepton mixing be? / de Blas, J. (Granada U.) ; Giuliano, C. (Granada U.) ; Guedes, G. (DESY ; CERN) ; López, R. Sánchez (Granada U.) ; Santiago, J. (Granada U.)
We show that, contrary to common expectations, the observed charged leptons can have a substantial mixing with new heavier fermions, at the level of 20$\%$ [...]
CERN-TH-2025-248 ; arXiv:2512.04148. - 38.
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2025-12-05
14:06
Measurement of the branching fractions and longitudinal polarisations of $B^0_{(s)} \to K^{*0} \kern 0.18em \overline{\kern -0.18em K}{}^{*0}$ decays / LHCb Collaboration
A time- and flavour-integrated amplitude analysis of $B^0$ and $B^0_s$ decays to the $(K^+\pi^-)(K^-\pi^+)$ final state in the $K^*(892)^0 \kern 0.18em \overline{\kern -0.18em K}{}^{*}(892)^0$ region is presented, using $pp$ collision data recorded with the LHCb detector in 2011--2018, corresponding to an integrated luminosity of $9\,\text{fb}^{-1}$. [...]
arXiv:2512.05102 ; LHCb-PAPER-2025-046 ; CERN-EP-2025-265 ; LHCB-PAPER-2025-046. - 2025 - 46.
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2025-12-05
04:52
NNLO+NNLL Predictions for Heavy-Jet Mass and C-parameter in Higgs Decays to Quarks and Gluons / Fox, Elliot (Durham U., IPPP) ; Gehrmann-De Ridder, Aude (Zurich, ETH ; Zurich U.) ; Gehrmann, Thomas (Zurich U.) ; Glover, Nigel (Durham U., IPPP ; CERN) ; Marcoli, Matteo (Durham U., IPPP) ; Preuss, Christian T. (Gottingen U.)
We consider the resummation of large logarithmic corrections arising in the two-particle limit at next-to-next-to-leading logarithmic (NNLL) accuracy for the heavy-jet mass and $C$-parameter distributions in the decay of a Higgs boson to quarks and gluons: $H\to b\bar{b}$, $H\to c\bar{c}$, and $H\to gg$. [...]
IPPP/25/85 ; ZU-TH 82/25 ; MCNET-25-27 ; arXiv:2512.03263. - 11.
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2025-12-05
04:51
Jet Production at NNLO: Exploring a New Scheme / Buonocore, Luca (CERN) ; Grazzini, Massimiliano (U. Zurich (main)) ; Guadagni, Flavio (U. Zurich (main)) ; Haag, Jürg (U. Bern, AEC) ; Kallweit, Stefan (Zurich U.) ; Rottoli, Luca (Milan Bicocca U. ; INFN, Milan Bicocca)
We consider dijet production in $e^+e^-$ collisions and in $H\to b{\bar b}$ decays at next-to-next-to-leading order (NNLO) in perturbative QCD. [...]
ZU-TH 83/25 ; CERN-TH-2025-232 ; arXiv:2512.03954. - 26.
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2025-12-04
06:02
Preliminary results from the CLEAR nonlinear plasma lens experiment / Drobniak, P (U. Oslo (main)) ; Adli, E (U. Oslo (main)) ; Anderson, H B (U. Oslo (main)) ; Sjobak, K N (U. Oslo (main)) ; Lindstrøm, C A (U. Oslo (main)) ; Dyson, A (U. Oxford (main)) ; Mewes, S M (DESY) ; Thévenet, M (DESY)
Plasma lensing provides compact focusing of electron beams, since they offer strong focusing fields (kT/m) in both planes simultaneously. [...]
arXiv:2505.21313. - 2025 - 4.
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2025-12-04
04:29
High-Resolution Laser Spectroscopy on the Hyperfine Structure of $^{255}$Fm (Z=100) / Urquiza-González, M. (U. Gothenburg (main)) ; Stemmler, M. (Mainz U. ; Leibniz U., Hannover) ; Albrecht, T.E. (Florida State U., Tallahassee (main)) ; Bally, B. (Darmstadt, Tech. U.) ; Bender, M. (IP2I, Lyon) ; Berndt, S. (Mainz U.) ; Block, M. (Mainz U. ; Helmholtz Inst., Mainz ; Darmstadt, GSI) ; Brizard, A. (Darmstadt, GSI ; GANIL) ; Andrews, J.S. (Helmholtz Inst., Mainz ; Darmstadt, GSI) ; Bieron, J. (Jagiellonian U.) et al.
We report on high-resolution laser spectroscopy of $^{255}$Fm ($T_{1/2} = 20$h), one of the heaviest nuclides available from reactor breeding. [...]
arXiv:2511.20921. - 6.
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2025-12-04
04:26
High Density Hybridisation Using ENIG Bumping and Anisotropic Conductive Films / Bangaru, Haripriya (CERN) ; Calderini, Giovanni (LPNHE, Paris) ; Dannheim, Dominik (CERN) ; De Oliveira, Rui (CERN) ; Lale, Ahmet (CERN) ; Lauser, Moritz (KIT, Karlsruhe) ; Pinto, Mateus Vicente Barreto (Geneva U.) ; Svihra, Peter (CERN ; LPNHE, Paris)
Fine-pitch hybridisation processes are essential for next-generation pixel detectors and high-density microelectronic assemblies. [...]
arXiv:2511.15562. - 7.
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2025-12-04
04:25
hls4ml: A Flexible, Open-Source Platform for Deep Learning Acceleration on Reconfigurable Hardware / Schulte, Jan-Frederik (Purdue U.) ; Ramhorst, Benjamin (Zurich, ETH) ; Sun, Chang (Caltech) ; Mitrevski, Jovan (Fermilab) ; Ghielmetti, Nicolò (CERN) ; Lupi, Enrico (CERN) ; Danopoulos, Dimitrios (CERN) ; Lončar, Vladimir (Belgrade, Inst. Phys. ; CERN) ; Duarte, Javier (UC, San Diego (main)) ; Burnette, David (KETEK, Munich) et al.
We present hls4ml, a free and open-source platform that translates machine learning (ML) models from modern deep learning frameworks into high-level synthesis (HLS) code that can be integrated into full designs for field-programmable gate arrays (FPGAs) or application-specific integrated circuits (ASICs). [...]
FERMILAB-PUB-25-0890-CSAID-ETD-PPD ; arXiv:2512.01463. -
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