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CERN Accelerating science

CERN Preprints

Latest additions:
2026-04-27
12:05
Angular analysis of the $B^+ \to \pi^+ \mu^+ \mu^-$ decay
This paper presents the first measurement of the forward-backward asymmetry, $A_{\rm FB}$, and the flat term, $F_{H}$, that parameterise the angular distribution of the $B^+\to\pi^+\mu^+\mu^-$ decay. [...]
CERN-EP-2026-105 ; arXiv:2604.21987 ; LHCB-PAPER-2026-015.
- 2026
Fulltext - Related data file(s) - Full text

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2026-04-27
09:18
Observation of a new excited charm-strange meson $D_{s1}(2933)^+$ in $B^0 \to D^+D^-K^+\pi^-$ decays
A new excited charm-strange meson is observed through an amplitude analysis of the full phase space of $B^0\to D^+ D^- K^+ \pi^-$ decays. [...]
CERN-EP-2026-065 ; arXiv:2604.21257 ; LHCB-PAPER-2025-073.
- 2026
Fulltext - Related data file(s)

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2026-04-25
06:00
Radiation effects on the entanglement of fermion pairs at colliders / Aoude, Rafael (U. Edinburgh (main)) ; Camacho, José Manuel (Valencia U., IFIC) ; Durupt, Valentin (Louvain U., CP3) ; García-Mir, Guillermo (Valencia U., IFIC) ; Maltoni, Fabio (Louvain U., CP3 ; Bologna U. ; INFN, Bologna ; CERN) ; Moreno Llácer, María (Valencia U., IFIC) ; Satrioni, Leonardo (Louvain U., CP3) ; Vos, Marcel (Valencia U., IFIC)
We study the impact of radiation on quantum systems defined by the spins of elementary fermion-antifermion pairs produced at colliders. [...]
arXiv:2604.16268.
- 2026 - 5.
Fulltext

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2026-04-25
04:22
Observation of a new excited charm-strange meson $D_{s1}(2933)^+$ in $B^0\to D^+ D^- K^+ \pi^-$ decays / LHCb Collaboration
A new excited charm-strange meson is observed through an amplitude analysis of the full phase space of $B^0\to D^+ D^- K^+ π^-$ decays. [...]
arXiv:2604.21257 ; LHCb-PAPER-2025-073,CERN-EP-2026-065.
- 24.
Fulltext

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2026-04-25
04:16
Search for dark matter produced in association with a dark Higgs boson decaying into a bottom quark-antiquark pair in proton-proton collisions at $\sqrt{s}$ = 13 TeV / CMS Collaboration
A search for dark matter produced in association with a dark Higgs boson decaying into a bottom quark-antiquark pair has been performed using proton-proton collision data at a center-of-mass energy of 13 TeV. [...]
arXiv:2604.20999 ; CMS-SUS-23-013 ; CERN-EP-2026-087.
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Fulltext

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2026-04-24
14:21
Fabrication and characterization of Triple GEM detectors for HEP experiments / Giri Raj Mohan Sharma ; Dhingra, Nitish (Panjab U.) ; Chauhan, Sushil Singh (Panjab U.) ; Bhatnagar, Vipin (Panjab U.) /CMS Collaboration
Gas Electron Multiplier (GEM) detectors are advanced micro-pattern gaseous devices designed for particle detection in harsh radiation environments. The central feature of GEM detector is a thin metal-clad polymer (usually Kapton) foil chemically etched with a high density of microscopic bi-conical holes, where each hole acts as an individual proportional amplifier. [...]
CMS-CR-2026-021.- Geneva : CERN, 2026 - 10 p. Fulltext: PDF;
In : National Conference on Advanced Instrumentation for Nuclear Physics, High-Energy Physics, and Medical Imaging, Gaya, India, 23 - 25 mar 2026

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2026-04-24
07:30
Effective field theory interpretation of ATLAS measurements involving the Higgs boson, electroweak bosons and the top quark / ATLAS Collaboration
Wilson coefficients in dimension-six effective field theory are constrained in a combined fit to several ATLAS measurements. [...]
arXiv:2604.21670 ; CERN-EP-2026-113.
- 2026 - 65.
Fulltext - Previous draft version - Fulltext

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2026-04-24
04:29
Crosscap Defects / Drukker, Nadav (King's Coll. London (main)) ; Komatsu, Shota (CERN) ; Wallberg, Anders (CERN ; EPFL, Lausanne, LTFP)
We introduce a novel class of defects, termed {\it crosscap defects}, in conformal field theory (CFT) in general dimensions. [...]
CERN-TH-2026-095 ; arXiv:2604.19868.
- 50.
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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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