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2026-05-07
14:00
Observation of the charmless purely baryonic decay $\mathinner{\mathit{\Lambda}^0_b\!\to \mathit{\Lambda} p \overline{p}}$
A search for the charmless purely baryonic decay $\mathinner{\mathit{\Lambda}^0_b\!\to \mathit{\Lambda} p \overline{p}}$ is performed using proton-proton collision data recorded by the LHCb experiment at a centre-of-mass energy of $\sqrt{s}=13\,\text{TeV}$ and corresponding to an integrated luminosity of $6.0\,\text{fb}^{-1}$ [...]
CERN-EP-2026-123 ; LHCB-PAPER-2026-004. - 2026
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2026-05-07
09:22
Differential measurements of $\gamma\gamma\to\tau\tau$ and constraints on $\tau$-lepton electromagnetic moments in Pb+Pb collisions at $\sqrt{s_{_\text{NN}}} = 5.02$ TeV with ATLAS
This paper presents the first differential fiducial measurements of $\gamma\gamma\to\tau\tau$ using 1.93 nb$^{-1}$ of Pb+Pb data at $\sqrt{s_{_\text{NN}}} = 5.02$ TeV recorded by the ATLAS detector. [...]
CERN-EP-2026-135. - 2026
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2026-05-07
09:09
Study of Particle Fluence Effects on Collected Charge and Depletion Voltage of the ATLAS IBL Planar Pixel Sensors
After ten years of operation at the LHC, the planar pixel sensors of the innermost barrel layer of the ATLAS Pixel detector have accumulated an average bulk damage fluence in excess of $2\times10^{15}$ 1 MeV-neutrons equivalent/cm$^2$. [...]
CERN-EP-2026-129. - 2026
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2026-05-07
06:08
Calibrating Interdependent Photochemistry, Nucleation, and Aerosol Microphysics in Chamber Experiments / Donahue, Neil M (U. Pittsburgh (main)) ; Hofbauer, Victoria (U. Pittsburgh (main)) ; Finkenzeller, Henning (Colorado U. ; U. Helsinki (main)) ; Stolzenburg, Dominik (U. Vienna (main) ; TU Vienna) ; Bauer, Paulus S (U. Vienna (main)) ; Chiu, Randall (Colorado U.) ; Dada, Lubna (U. Helsinki (main)) ; Duplissy, Jonathan (U. Helsinki (main)) ; He, Xu-Cheng (U. Helsinki (main) ; Cambridge U. (main)) ; Heinritzi, Martin (Goethe U., Frankfurt (main)) et al.
Laboratory experiments addressing complex phenomena such as atmospheric new-particle formation and growth typically involve numerous instruments measuring a range of key coupled variables. [...]
2025 - 1.

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2026-05-07
06:08
FLOTUS: a new FLow TUbe System for the CERN CLOUD chamber / Sommer, Eva (CERN ; U. Vienna (main)) ; Bhattacharyya, Nirvan (Goethe U., Frankfurt (main)) ; Klebach, Hannah (Goethe U., Frankfurt (main)) ; Almeida, João (CERN ; U. Lisbon (main)) ; Mentler, Bernhard (Innsbruck U.) ; Busato, Mattia (CERN) ; Huang, Yuanlong (Caltech, Pasadena (main)) ; Lombard, Didier (CERN) ; Onnela, Antti (CERN) ; Mathot, Serge (CERN) et al.
The CERN CLOUD experiment (Kirkby et al. [...]
2026 - 1.

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2026-05-07
04:50
Recent Results from NA62 in Kaon and Dump Mode / Schubert, Jonathan Leon (Munich, Max Planck Inst.)
NA62 is a fixed-target kaon experiment at the CERN SPS. [...]
arXiv:2605.02415 ; MPP-2026-83. - 4.
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2026-05-06
04:48
Performance characterisation of the Hamamatsu R760 photomultiplier tube for the PLUME detector / Bellavista, A. (CERN ; U. Bologna, DIFA ; INFN, Bologna) ; Carbone, A. (U. Bologna, DIFA ; INFN, Bologna) ; Chaumat, V. (U. Bologna, DIFA ; INFN, Bologna) ; Ferrari, F. (U. Bologna, DIFA ; INFN, Bologna) ; Nguyen-Trung, T. (IJCLab, Orsay) ; Puill, V. (IJCLab, Orsay) ; Toscano, L. (Tech. U., Dortmund (main)) ; Villa, A. (Ecole Polytechnique, Lausanne)
The Probe for Luminosity Measurement detector is a novel luminometer designed to monitor the luminosity and beam conditions of the Large Hadron Collider at the interaction point of the LHCb experiment, starting from Run 3. [...]
arXiv:2604.21687. - 14.
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2026-05-06
04:47
Euclid preparation. CosmoPostProcess: A simulation calibrated framework for weak lensing selection bias in richness-selected galaxy clusters / Euclid Collaboration
We present \texttt{CosmoPostProcess}, a simulation-based forward-modelling algorithm calibrated to reproduce Euclid optical cluster observables [...]
arXiv:2605.02723. - 29.
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2026-05-06
04:44
Studying the Infrared Behaviour of Improved Logarithmic Accuracy Parton Showers with Herwig / Holguin, Jack (Manchester U.) ; Plätzer, Simon (Graz U. ; Vienna U.) ; Seymour, Michael H. (Manchester U. ; CERN) ; Sule, Siddharth (Manchester U.)
We have implemented two recently proposed dipole shower algorithms that have next-to-leading-logarithmic accuracy at leading colour in the Herwig event generator. [...]
CERN-TH-2026-101 ; MCNET-26-09 ; arXiv:2605.02622. - 46.
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2026-05-06
04:43
Testing template-fitting models for the multipoles of the two-point clustering of galaxy clusters / Euclid Collaboration
The \textit{Euclid} satellite will deliver a catalogue of optically-selected galaxy clusters spanning from around $2000$ deg$^2$ in Data Release (DR) 1 to around $14\,000$ deg$^2$ in DR3. [...]
arXiv:2604.25762. - 18.
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