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2026-03-19
16:17
Combined effective field theory interpretation of measurements sensitive to quartic gauge boson couplings in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
A combination of measurements sensitive to anomalous quartic electroweak gauge boson couplings is presented using proton-proton collision data collected by the ATLAS detector at $\sqrt{s} = 13$ TeV at the LHC. [...]
CERN-EP-2026-076. - 2026
Fulltext - Previous draft version

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2026-03-19
11:27
Measurement of hadronic form-factor parameters with an angular analysis of $B^0 \rightarrow D^{*-} \mu^{+} \nu_{\mu}$ decays /LHCb Collaboration
The hadronic form-factor parameters of the $B^{0}\to D^{\ast-} \mu^{+} \nu_\mu$ decay are determined from a differential analysis of the decay rate in dilepton momentum squared, $q^2$, the three helicity angles and the squared invariant mass of the visible system, $m^2_{miss}$. The data sample used corresponds to an integrated luminosity of 3.0 fb$^{-1}$ collected by the LHCb experiment in proton-proton collisions at centre-of-mass energies 7 TeV and 8 TeV [...]
LHCb-CONF-2026-001; CERN-LHCb-CONF-2026-001.- Geneva : CERN, 2026 - mult.p. Fulltext: LHCb-CONF-2026-001 - PDF; LHCb-CONF-2026-001-figures - ZIP;
In : 60th Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, It, 15 - 22 Mar 2026

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2026-03-19
04:09
A Novel Approach for Fault Detection and Failure Analysis of CMOS Copper Metal Stacks / Eberwein, Gregor Hieronymus (Oxford U. ; MIT) ; Rinella, Gianluca Aglieri (CERN) ; Bortoletto, Daniela (Oxford U.) ; Bugiel, Szymon (CERN) ; Carnesecchi, Francesca (CERN) ; Di Mauro, Antonello (CERN) ; Leitao, Pedro Vicente (CERN) ; Hillemanns, Hartmut (CERN) ; Imhoff, Marc Alain (Strasbourg, IPHC) ; Junique, Antoine (CERN) et al.
For the Inner Tracking System 3 (ITS3) upgrade, the ALICE experiment at CERN requires monolithic active pixel sensors of dimensions up to 97~mm$\,\times\,$266~mm, occupying a large fraction of a 300 mm wafer. [...]
arXiv:2603.16473. - 2026-03 - 7.
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2026-03-19
04:06
Shocks from Exploding Primordial Black Holes in the Early Universe / Vanvlasselaer, Miguel (Brussels U., IIHE ; U. Barcelona (main)) ; Trifinopoulos, Sokratis (MIT ; CERN ; Zurich U.) ; Klipfel, Alexandra P. (MIT) ; Kaiser, David I. (MIT)
We investigate how Hawking radiation from low-mass primordial black holes deposits energy into the early-universe plasma and show that the resulting phenomena are hydrodynamic rather than purely diffusive. [...]
CERN-TH-2026-048 ; MIT-CTP/5978 ; arXiv:2603.15746. - 34.
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2026-03-19
04:03
Latin American HECAP Physics Briefing Book 2025 / Acero, Mario A. (U. Atlantico, Barranquilla) ; Aguilar-Arevalo, Alexis A. (UNAM, Mexico) ; Andrada, Belén (Buenos Aires, CONICET) ; Larriva, Andrés Baquero (U. del Azuay, Cuenca) ; Cambiaso, Mauro (Andres Bello Natl. U.) ; Carrera, Edgar (San Francisco de Quito U.) ; Cruz, Melissa (Honduras U.) ; Duarte, Lucía (Republica U., Montevideo) ; Estrada, Juan (Brookhaven) ; Gago, Alberto (Lima, Pont. U. Catolica) et al.
The first process for the Latin American Strategy Forum for Research Infrastructure for High Energy, Cosmology and Astroparticle Physics (LASF4RI-HECAP) came to a conclusion in October 2020, with a Physics Briefing Book (PBB) presented in (2104.06852). [...]
arXiv:2603.06291. - 135.
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2026-03-19
04:01
The photon-energy spectrum in $B\to X_sγ$ to N$^3$LO: light-fermion and large-$N_{\rm c}$ corrections / Fael, Matteo (U. Padua, Dept. Phys. Astron. ; INFN, Padua) ; Lange, Fabian (Zurich U. ; PSI, Villigen) ; Schönwald, Kay (CERN) ; Steinhauser, Matthias (KIT, Karlsruhe, TTP)
We calculate the photon-energy spectrum of the inclusive radiative decay $B\to X_sγ$, induced by the electromagnetic dipole operator $O_7$, to next-to-next-to-next-to-leading order and consider the complete corrections for light fermions, for the contributions with two closed massive fermion loops, and for the limit of large QCD colour factors $N_{\rm c}$ in the remaining part. [...]
CERN-TH-2026-049 ; P3H-26-018 ; TTP26-007 ; ZU-TH 11/26 ; arXiv:2603.15751. - 38.
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2026-03-19
04:01
$gg \to ZH$ at NLO matched to parton showers with ggxy and POWHEG / Davies, Joshua (Liverpool U., Dept. Math.) ; Schönwald, Kay (CERN) ; Steinhauser, Matthias (KIT, Karlsruhe, TTP) ; Stremmer, Daniel (KIT, Karlsruhe, TTP)
We implement the recently-calculated analytic expressions for the next-to-leading order QCD corrections to $gg\to ZH$ in ggxy. [...]
CERN-TH-2026-051 ; P3H-26-019 ; TTP26-008 ; arXiv:2603.15762. - 23.
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2026-03-18
12:40
A search for lepton-flavour violating $\tau \to 3\mu$ decays with the ATLAS detector
A search for charged lepton flavour violation in $\tau \to 3\mu$ decays is performed in $pp$ collisions at a centre-of-mass energy of 13 TeV using ATLAS data collected between 2016 and 2018, corresponding to an integrated luminosity of 137 $\text{fb}^{-1}$ [...]
CERN-EP-2026-059. - 2026
Fulltext - Previous draft version

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2026-03-18
06:17
Laboratory observation of collective beam-plasma instabilities in a relativistic pair jet / Halliday, J W D (U. Oxford (main) ; Rutherford Appleton Laboratory) ; Arrowsmith, C D (U. Oxford (main) ; Unlisted, US) ; Goillot, A M (CERN) ; Bilbao, P J (Unlisted) ; Simon, P (Darmstadt, GSI) ; Stergiou, V (U. Oxford (main) ; CERN) ; Zhang, S (U. Oxford (main)) ; Alexaki, P (CERN ; Athens Natl. Capodistrian U.) ; Bochmann, M (Unlisted, AT) ; Bott, A F A (U. Oxford (main)) et al.
We report on a measurement of collective behavior in a relativistic electron-positron pair plasma produced in the laboratory. [...]
arXiv:2602.16542. - 2026 - 7.
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2026-03-18
06:17
Why (and how) LGADs work : ionization, space charge, and gain saturation / Cartiglia, N (INFN, Turin) ; Altamura, A R (INFN, Turin ; Turin U.) ; Arcidiacono, R (INFN, Turin ; Piemonte Orientale U., Alessandria) ; Durando, M (Turin U.) ; Galletto, S (Turin U.) ; Ferrero, M (INFN, Turin) ; Lanteri, L (INFN, Turin ; Turin U.) ; Losana, A (INFN, Turin ; Turin U.) ; Massaccesi, L (INFN, Turin ; Turin U.) ; Menzio, L (CERN) et al.
The temporal resolution of Low-Gain Avalanche Detectors (LGADs), also known as Ultra-Fast Silicon Detectors (UFSDs), is governed by two contributions: jitter, arising from electronic noise and signal slew rate, and the Landau noise term, arising from the non-uniform energy deposition of minimum ionizing particles (MIPs). [...]
arXiv:2603.10841. - 7.
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