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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 p, 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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