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2026-04-10
04:20
Euclid preparation. Non-Gaussianity of 2-pt statistics likelihood: Parameter inference with a non-Gaussian likelihood in Fourier and configuration space / Euclid Collaboration
In this work we account for this skewness in parameter inference by modelling the likelihood through an Edgeworth expansion which involves the complete skewness tensor, composed of 1-point, 2-point, and 3-point correlators. [...]
arXiv:2604.01309. - 25.
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2026-04-10
04:20
Spatial resolution improvement of PICOSEC Micromegas precise timing detectors / Brunbauer, F.M. (CERN) ; Aleksan, R. (IRFU, Saclay) ; Angelis, Y. (Aristotle U., Thessaloniki) ; Aune, S. (IRFU, Saclay) ; Bortfeldt, J. (LMU Munich (main)) ; Brunoldi, M. (Pavia U. ; INFN, Pavia) ; Datta, J. (Stony Brook U.) ; Desforge, D. (IRFU, Saclay) ; Fanourakis, G. (Democritos Nucl. Res. Ctr.) ; Fiorina, D. (Pavia U. ; INFN, Pavia ; GSSI, Aquila) et al.
The combination of a Cherenkov radiator with a semi-transparent photocathode and a Micromegas based amplification stage allows PICOSEC Micromegas detectors to achieve a time resolution of better than 15ps. [...]
arXiv:2603.18733. - 9.
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2026-04-10
04:19
A first study of strong isospin breaking effects in lattice QCD using truncated polynomials / Albandea, David (Helmholtz Inst., Mainz ; Darmstadt, GSI) ; Kuberski, Simon (CERN) ; Panadero, Fernando P. (Madrid, IFT)
Computing derivatives of observables with respect to parameters of the theory is a powerful tool in lattice QCD, as it allows the study of physical effects not directly accessible in the original Monte Carlo simulation. [...]
MITP-26-015 ; CERN-TH-2026-059 ; IFT-UAM/CSIC-26-38 ; arXiv:2603.24420. - 10.
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2026-04-10
04:09
The hadronic contribution to the running of the electroweak gauge couplings / Conigli, Alessandro (Helmholtz Inst., Mainz ; Darmstadt, GSI) ; Djukanovic, Dalibor (Helmholtz Inst., Mainz ; Darmstadt, GSI) ; von Hippel, Georg (U. Mainz, PRISMA) ; Kuberski, Simon (CERN) ; Meyer, Harvey B. (Helmholtz Inst., Mainz ; U. Mainz, PRISMA ; CERN) ; Miura, Kohtaroh (KEK, Tsukuba) ; Ottnad, Konstantin (U. Mainz, PRISMA ; Bonn U. ; Bonn U., HISKP) ; Risch, Andreas (Wuppertal U.) ; Wittig, Hartmut (Helmholtz Inst., Mainz ; Darmstadt, GSI ; U. Mainz, PRISMA)
We present an updated determination of the hadronic vacuum polarization contribution to the running of the electromagnetic coupling $Δα_{\mathrm{had}}^{(5)}(-Q^2)$, and of the electroweak mixing angle in the space-like momentum range up to $12 \ \mathrm{GeV}^2$. [...]
arXiv:2603.29775. - 10.
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2026-04-10
04:06
Adversarial Robustness of Time-Series Classification for Crystal Collimator Alignment / Fink, Xaver (CERN ; RWTH Aachen U.) ; Adiego, Borja Fernandez (CERN) ; Mirarchi, Daniele (CERN) ; Matheson, Eloise (CERN) ; Gonzales, Alvaro Garcia (CERN) ; Ricci, Gianmarco (DESY) ; Katoen, Joost-Pieter (RWTH Aachen U.)
In this paper, we analyze and improve the adversarial robustness of a convolutional neural network (CNN) that assists crystal-collimator alignment at CERN's Large Hadron Collider (LHC) by classifying a beam-loss monitor (BLM) time series during crystal rotation. [...]
arXiv:2604.06289. - 22.
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2026-04-09
16:03
Search for soft unclustered energy patterns produced in association with a W or Z boson in proton-proton collisions at $ \sqrt{s} = $ 13 TeV
A search for a Higgs boson produced in association with a W or Z boson and decaying via a soft unclustered energy pattern (SUEP) is presented. [...]
arXiv:2604.05996 ; CMS-EXO-25-007 ; CERN-EP-2026-025 ; CMS-EXO-25-007-003. - 2026 - 39.
Additional information for the analysis - CMS AuthorList - Fulltext - CMS HEPData

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2026-04-09
15:44
Observation of nuclear suppression in coherent $ \Upsilon{\textrm{(1S)}} $ photoproduction off heavy nuclei at the LHC
The first measurement of coherent $ \Upsilon{\textrm{(1S)}} $ meson photoproduction off heavy nuclei is performed using ultraperipheral lead-lead collisions collected by the CMS experiment at a nucleon-nucleon center-of-mass energy of 5.02 TeV. [...]
CMS-HIN-24-013 ; CERN-EP-2026-050 ; arXiv:2604.05814 ; CMS-HIN-24-013-003. - 2026
Additional information for the analysis - CMS AuthorList - Fulltext

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2026-04-09
14:13
Evidence of $ \mathrm{Z}\mathrm{Z}\gamma $ production and observation of 4 $ \ell\gamma $ in proton-proton collisions at $ \sqrt{s} = $ 13 TeV
Evidence of the production of two Z bosons and a photon in proton-proton collisions is reported for the first time in CMS. [...]
arXiv:2604.02594 ; CMS-SMP-24-014 ; CERN-EP-2026-102 ; CMS-SMP-24-014-003. - 2026 - 33.
Additional information for the analysis - CMS AuthorList - Fulltext

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2026-04-09
13:47
Search for Higgs boson pair production in the $ \mathrm{b}\overline{\mathrm{b}}\mathrm{W}\mathrm{W} $ decay channel with two leptons in the final state using proton-proton collision data at $ \sqrt{s}= $ 13.6 TeV
A search for Higgs boson pair production is presented, targeting final states where one Higgs boson decays to a pair of bottom quarks and the other Higgs boson decays to two W bosons, both of which decay leptonically, to an electron or a muon, and a neutrino. [...]
arXiv:2604.02127 ; CERN-EP-2026-091 ; CMS-HIG-25-018-003. - 2026 - 49.
Additional information for the analysis - CMS AuthorList - Fulltext

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2026-04-09
10:28
Measurement of charged-particle production in $\sqrt{s_\text{NN}}=9.62$ TeV proton-oxygen collisions as a probe of cosmic-ray air showers with the ATLAS detector / ATLAS Collaboration
This Letter presents a measurement of prompt charged-particle production in proton-oxygen interactions at $\sqrt{s_\text{NN}}=9.62$ TeV center-of-mass energy with the ATLAS detector, corresponding to 634 $μ$b$^{-1}$ of integrated luminosity. [...]
arXiv:2604.05512 ; CERN-EP-2026-106. - 36.
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