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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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2026-04-09
05:10
Search for soft unclustered energy patterns produced in association with a W or Z boson in proton-proton collisions at $\sqrt{s}$ = 13 TeV / CMS Collaboration
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. - 39.
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2026-04-09
05:02
Comments on Symmetry Operators, Asymptotic Charges and Soft Theorems / Tizzano, Luigi (CERN)
We study the relation between emergent 1-form symmetries and soft photon theorems in QED. [...]
CERN-TH-2026-083 ; arXiv:2604.06088. - 8.
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2026-04-08
13:02
L'alimentation en électricité du CERN 1957-2007 / Bayard, O
Après un bref historique de l'alimentation en électricité du CERN, la note décrit la transformation des lignes EDF et EOS desservant le CERN en une importante artère de transit international d’énergie, et en parallèle l'évolution des connexions internes du CERN à ces réseaux. [...]
CERN-ST-96-01-IE. - 1996 - 44.
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2026-04-08
05:08
Simulating Axion Electrodynamics in Magnetized Plasmas: Energy transfer in the inhomogeneous and strongly varying limit / Corelli, Fabrizio (U. Rome La Sapienza (main) ; Potsdam, Max Planck Inst. ; INFN, Rome) ; Ginés, Estanis Utrilla (Valencia U., IFIC) ; Cannizzaro, Enrico (Lisbon, CENTRA ; IST, Lisbon (main)) ; Caputo, Andrea (U. Rome La Sapienza (main) ; CERN ; Weizmann Inst. ; INFN, Rome) ; Witte, Samuel J. (Oxford U., Theor. Phys. ; DESY ; Hamburg U., Inst. Theor. Phys. II)
In this work we study the electromagnetic response induced by axions in a magnetized plasma, focusing specifically on characterizing energy transfer and energy losses from the ambient axion field in highly inhomogeneous and strongly varying backgrounds. [...]
DESY-26-046 ; CERN-TH-2026-069 ; arXiv:2603.26868. - 37.
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2026-04-08
05:01
Monte Carlo Event Generation with Continuous Normalizing Flows / Bothmann, Enrico (CERN ; Gottingen U.) ; Janßen, Timo (Gottingen U.) ; Knobbe, Max (Fermilab) ; Schmitzer, Bernhard (Gottingen U.) ; Sinz, Fabian (Gottingen U.)
We apply Continuous Normalizing Flows trained with the Flow Matching method to the problem of phase-space sampling in Monte Carlo event generation for high-energy collider physics. [...]
FERMILAB-PUB-25-0468-T ; arXiv:2604.03511. - 7.
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2026-04-08
04:40
Interpreting the results on exclusive $c\rightarrow sμν$ modes / Bečirević, D. (IJCLab, Orsay ; CERN) ; Martines, M. (Sao Paulo U.) ; Rosauro-Alcaraz, S. (LPC, Clermont-Ferrand) ; Sumensari, O. (IJCLab, Orsay)
We examine the $q^2$-binned distributions of the $D\to Kμν$ decay rate and of the corresponding forward-backward asymmetry which were recently measured by BESIII, showing a mild deviation from the Standard Model predictions. [...]
arXiv:2603.25837. - 9.
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2026-04-08
04:18
Reducing cosmological degeneracies by combining multiple classes of LISA gravitational-wave standard sirens / Laghi, Danny (Zurich U. ; L2IT, Toulouse) ; Tamanini, Nicola (L2IT, Toulouse) ; Sesana, Alberto (Milan Bicocca U.) ; Gair, Jonathan (Potsdam, Max Planck Inst.) ; Barausse, Enrico (INFN, Trieste ; SISSA, Trieste ; IFPU, Trieste) ; Caprini, Chiara (CERN ; Geneva U., CAP ; Geneva U., Dept. Theor. Phys.) ; Del Pozzo, Walter (Pisa U. ; INFN, Pisa) ; Mangiagli, Alberto (Potsdam, Max Planck Inst.) ; Marsat, Sylvain (L2IT, Toulouse)
We present the first joint gravitational-wave cosmological inference with LISA extreme mass-ratio inspirals at $z\lesssim1$ (galaxy redshifts) and massive black hole binaries at $z\gtrsim1$ (electromagnetic counterparts). [...]
arXiv:2603.23612. - 9.
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2026-04-07
12:18
Physics objects in CMS Run 3 / Seidel, Markus (Riga Tech. U.) /CMS Collaboration
Abstract In these proceedings we review the reconstruction of the physics objects used by the CMS experiment during LHC Run 3 at 13.6 TeV, including charged leptons, photons, jets, and missing transverse momentum. The performance of physics object reconstruction and their calibration are critical for physics analysis. [...]
CMS-CR-2026-010.- Geneva : CERN, 2026 - 12 p. Fulltext: PDF;
In : 18th International Workshop on Top Quark Physics (TOP2025), Seoul, South Korea, 21 - 26 Sep 2025

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2026-04-07
12:11
Search for the decays $B_{(s)}^0\rightarrow J/\psi\gamma$ at LHCb
A search for the rare decays $B_{(s)}^0\rightarrow J/\psi\gamma$ is performed with proton-proton collision data collected by the LHCb experiment, corresponding to integrated luminosities of $3~\mathrm{fb}^{-1}$ at centre-of-mass energies of 7 and 8 TeV, and $6~\mathrm{fb}^{-1}$ at 13 TeV. [...]
LHCb-PAPER-2025-065 ; CERN-EP-2026-060 ; arXiv:2604.02933 ; LHCB-PAPER-2025-065. - 2026
Fulltext - Previous draft version - Related data file(s)

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2026-04-07
05:11
Evidence of ZZ$γ$ production and observation of $4\ellγ$ in proton-proton collisions at $\sqrt{s}$ = 13 TeV / CMS Collaboration
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. - 33 p, 33.
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