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ABOUT PREPRINTS
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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2026-04-23
07:25
A Compact Front-End Circuit for a Monolithic Sensor in a 65 nm CMOS Imaging Technology / Piro, F (CERN ; Ecole Polytechnique, Lausanne) ; Rinella, G Aglieri (CERN) ; Buckland, M (INFN, Trieste) ; Cecconi, L (CERN) ; Charbon, E (Ecole Polytechnique, Lausanne) ; Contin, G (INFN, Trieste) ; de Melo, J L A (CERN) ; Deng, W (CERN) ; Hong, G H (CERN) ; Kugathasan, T (CERN) et al.
This work presents the design of a front-end circuit optimized for a monolithic active pixel sensor with a small, low-capacitance collection electrode. [...]
2022 - 3.

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2026-04-23
05:21
The FASER experiment at the Large Hadron Collider / Boyd, Jamie (CERN)
The FASER experiment is located in the Large Hadron Collider (LHC) complex at CERN, 480 m downstream of the ATLAS collision point and aligned with the beam-collision-axis. [...]
arXiv:2604.19199. - 56.
Fulltext

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2026-04-23
05:00
New physics searches at NA62 / Long, Elizabeth (Charles U.)
The NA62 experiment at CERN has collected a large sample of $K^+$ and $π^+$ decays in flight during Run 1 in 2016--2018 and the ongoing Run 2 which started in 2021. [...]
arXiv:2604.08954. - 8.
Fulltext

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2026-04-23
04:57
Extremely high-energy bremsstrahlung in matter / Arnold, Peter (Virginia U. (main)) ; Bautista, Joshua (Virginia U. (main)) ; Elgedawy, Omar (South China Normal U. ; GPKLDMT, Guangzhou ; Ecole Polytechnique, CPHT) ; Iqbal, Shahin (NCP, Islamabad ; CERN)
The theory of bremsstrahlung $e \to eγ$ by extremely high energy electrons passing through ordinary matter has been qualitatively incomplete. [...]
CPHT-RR013.042026 ; CERN-TH-2026-091 ; arXiv:2604.18685. - 6.
Fulltext

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2026-04-23
04:57
Cherenkov and scintillation light separation in BGO and BSO crystals coupled to SiPMs for dual-readout electromagnetic calorimetry at future colliders / Alviggi, M. (Naples U. ; INFN, Naples) ; Argiento, B. (INFN, Naples ; Naples U.) ; Auffray, E. (CERN) ; Benaglia, A. (INFN, Milan Bicocca) ; Bisignani, V. (Naples U. ; INFN, Naples) ; Boccanfuso, D. (INFN, Naples ; SSM, Naples) ; Borriello, L. (INFN, Naples ; Naples U.) ; Campajola, M. (INFN, Naples) ; Cecchi, C. (U. Perugia (main) ; INFN, Perugia) ; Cirotto, F. (Naples U. ; INFN, Naples) et al.
We report on the separation of Cherenkov and scintillation light in BGO and BSO crystals read out with silicon photomultipliers (SiPMs). [...]
arXiv:2604.09918. - 14.
Fulltext

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2026-04-22
16:37
Observation of impact parameter dependent modifications of nuclear parton distributions in photonuclear Pb+Pb collisions at $\sqrt{s_\mathrm{NN}} = 5.02$ TeV with the ATLAS detector
High-energy photonuclear ($\gamma+A$) scattering in ultra-peripheral heavy-ion collisions provides a unique probe of nuclear structure. [...]
CERN-EP-2026-095. - 2026
Fulltext - Previous draft version

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2026-04-22
16:32
Observation of the doubly charmed baryon $\it{\Xi}_{cc}^+$ with the LHCb Run 3 detector
The first observation of the doubly charmed baryon $\it{\Xi}_{cc}^+$ is reported through its decay to the $\it{\Lambda}_c^+ K^-\pi^+$ final state, with a statistical significance exceeding seven standard deviations. [...]
CERN-EP-2026-122 ; LHCB-PAPER-2026-009. - 2026
Fulltext - Previous draft version - Related data file(s)

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2026-04-22
16:29
Search for the single production of vector-like quarks decaying into a W boson and a b quark using single-lepton final states in proton-proton collisions at $ \sqrt{s} = $ 13 TeV
A search is performed for the single production of a heavy vector-like quark (VLQ), decaying into a W boson and a b quark. [...]
CERN-EP-2026-021 ; CMS-B2G-22-004-003. - 2026
Additional information for the analysis - CMS AuthorList - Fulltext

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2026-04-22
15:22
Search for heavy resonances decaying into four-lepton final states via light bosons in proton-proton collisions at $ \sqrt{s} = $ 13 TeV / CMS Collaboration
A search for a resonance heavier than 250 GeV decaying into four leptons via two intermediate bosons is presented. [...]
arXiv:2604.14236 ; CMS-EXO-24-006 ; CERN-EP-2026-072 ; CMS-EXO-24-006-003. - 2026 - 33 p, 33.
Additional information for the analysis - CMS AuthorList - Fulltext - CMS HEPData - Fulltext

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2026-04-22
14:37
Highly boosted dielectron identification in proton-proton collisions at $ \sqrt{s} = $ 13 TeV
A new technique is developed to identify dielectrons ($ \mathrm{e}^+\mathrm{e}^- $) with Lorentz boost $ \gamma_{\mathrm{L}} > $ 20 that produce one single merged cluster in the electromagnetic calorimeter of the CMS detector. [...]
CERN-EP-2026-092 ; CMS-EGM-24-002-003. - 2026
Additional information for the analysis - CMS AuthorList - Fulltext

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