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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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Preprints

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2026-01-22
04:10
Comparative evaluation of future collider options / Arduini, G. (Chalmers U. Tech.) ; Benedikt, M. (Chalmers U. Tech.) ; Gianotti, F. (Chalmers U. Tech.) ; Jakobs, K. (Freiburg U.) ; Lamont, M. (Chalmers U. Tech.) ; Losito, R. (Chalmers U. Tech.) ; Meddahi, M. (Chalmers U. Tech.) ; Mnich, J. (Chalmers U. Tech.) ; Mounet, N. (Chalmers U. Tech.) ; Schulte, D. (Chalmers U. Tech.) et al.
In anticipation of the completion of the High-Luminosity Large Hadron Collider (HL-LHC) programme by the end of 2041, CERN is preparing to launch a new major facility in the mid-2040s. [...]
arXiv:2511.20417 ; CERN-2025-011. - 83.
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2026-01-21
12:16
Measurement of the $ \mathrm{Z}\gamma $ production cross section and search for anomalous neutral triple gauge couplings in pp collisions at $ \sqrt{s}= $ 13 TeV / CMS Collaboration
A measurement of the fiducial cross section of the associated production of a Z boson and a high-$ p_{\mathrm{T}} $ photon, where the Z decays to two neutrinos, and a search for anomalous triple gauge couplings are reported. [...]
arXiv:2601.14102 ; CMS-SMP-22-009 ; CERN-EP-2025-206 ; CMS-SMP-22-009-003. - 2026 - 43.
Additional information for the analysis - CMS AuthorList - Fulltext - Fulltext

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2026-01-21
06:33
4D Tracking Vertex Locator at the LHCb Experiment / Akiba, K (Nikhef, Amsterdam) ; Coco, V (CERN)
LHCb plans an Upgrade II detector for 2034 to operate at luminosities of $1.5 \times 10^{34} ~\text{cm}^{-2} \wedge^{-1}$, accumulating over $300 \text{fb}^{-1}$. [...]
2025 - 1.

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2026-01-20
06:55
Differential measurements of $\bar{t}tZ$ and $\bar{t}t\bar{t}t$ at large $Q^2$ at FCC-hh / Beriet, Louise (Lund U. (main) ; CERN) ; Defranchis, Matteo (CERN) ; Stapf, Birgit (CERN) ; Selvaggi, Michele (CERN)
This contribution presents studies of differential top-quark measurements at the Future Circular Collider in its proton-proton stage (FCC-hh). [...]
arXiv:2601.04763. - 2026 - 7.
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2026-01-20
06:55
Dressing and Screening in Anti-de Sitter / Ankur (U. Trieste (main) ; INFN, Trieste ; CAS, Beijing) ; Di Pietro, Lorenzo (Trieste U. ; INFN, Trieste) ; Gorbenko, Victor (Ecole Polytechnique, Lausanne) ; Komatsu, Shota (CERN) ; Sacchi, Veronica (Ecole Polytechnique, Lausanne)
Motivated by a question of defining gauge-invariant observables in cosmology and by the close connection between perturbation theory in de Sitter (dS) and Anti-de Sitter (AdS), we study scalar electrodynamics in AdS in setups that are largely unexplored but relevant for dS physics. [...]
arXiv:2601.04321. - 2026 - 79.
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2026-01-20
06:54
Quantum properties of heavy-fermion pairs at a lepton collider with polarised beams / Altakach, Mohammad Mahdi (Lebanese U.) ; Lamba, Priyanka (Bologna U. ; INFN, Bologna) ; Maltoni, Fabio (Bologna U. ; INFN, Bologna ; Louvain U., CP3 ; CERN) ; Sakurai, Kazuki (Warsaw U.)
We investigate the quantum properties of heavy-fermion pairs, such as $t\bar t$ or $τ^+τ^-$, produced in lepton-lepton collisions with polarised beams. [...]
arXiv:2601.09558. - 2026 - 46.
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2026-01-20
06:54
Dark Matter emission at Belle II and NA62 in Minimal Flavor Violation framework / Mescia, Federico (Frascati) ; Okawa, Shohei (APCTP, Pohang ; POSTECH ; Kyushu U., Fukuoka (main)) ; Swallow, Joel (CERN) ; Toni, Claudio (Annecy, LAPTH)
Minimal Flavor Violation (MFV) provides a compelling framework for exploring physics beyond the Standard Model, in which new QCD-singlet fields transforming under the global $\mathrm{SU}(3)^3$ quark flavor symmetry can naturally be stable and act as dark matter (DM) candidates. [...]
KYUSHU-HET-349 ; LAPTH-004/26 ; arXiv:2601.08907. - 2026 - 26.
Fulltext

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2026-01-19
18:48
Status and performance of the CMS Electromagnetic Calorimeter in Run 3 of LHC / Tornago, Marta (IRFU, Saclay) /CMS Collaboration
The Electromagnetic Calorimeter (ECAL) of the CMS experiment at the LHC plays a vital role in various physics analyses, including Higgs boson studies and searches for new phenomena. Achieving accurate calibration of the detector and its individual channels is critical for optimizing the energy resolution of electrons and photons, as well as for measuring the electromagnetic components of jets and contributing to energy sums used to detect particles that do not generate a signal in the detector. [...]
CMS-CR-2026-002.- Geneva : CERN, 2026 - 11 p. Fulltext: PDF;
In : 14th International Conference on New Frontiers in Physics 2025 (ICNFP 2025), Kolymbari, Crete, Gr, 17 - 31 Jul 2025

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2026-01-19
18:48
Refining Tau Identification with Domain Adaptation Techniques at CMS / Zakharov, Stepan (DESY) /CMS Collaboration
Hadronically decaying tau leptons are a challenging signature to study given it can be mimicked by quark and gluon jets, electrons, or muons. The identification of this signature via a convolutional neural network performed by CMS during the LHC Run 2 brought a massive improvement with respect to previous strategies. [...]
CMS-CR-2025-284.- Geneva : CERN, 2025 - 7 p. Fulltext: PDF;
In : 2025 European Physical Society Conference on High Energy Physics (EPS-HEP 2025), Marseille, France, 7 - 11 Jul 2025

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2026-01-19
18:48
Search for Physics beyond the Standard Model in four- and three-top quark production / Shooshtari, Maryam (OAW, Vienna) /CMS Collaboration
A reinterpretation of four-top quark ($t\bar{t}t\bar{t}$) production is presented using the full Run~2 dataset recorded by the CMS experiment, corresponding to an integrated luminosity of 138\,fb$^{-1}$. The analysis targets BSM scenarios using the existing \tttt production measurement, including constraints on effective field theory (EFT) operators, top-philic heavy resonances, and the top-Yukawa coupling. [...]
CMS-CR-2025-260.- Geneva : CERN, 2025 - 7 p. Fulltext: PDF;
In : 18th International Workshop on Top Quark Physics (TOP2025), Seoul, South Korea, 21 - 26 Sep 2025

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