Département de Physique des Particules

Domaines scientifiques déclarés au RNSR

Panels ERC déclarés au RNSR

Mots-clés des publications HAL repérées

Projets ANR

• Les données Lyman-alpha de DESI : première analyse et contraintes sur les neutrinos et la matière noire · 2022

Publications HAL récentes repérées

• Exploring Higgs EFT in $t\bar{t}hh$ at High Luminosity LHC · 2026

  Résumé de la publication : The non-resonant production of a Higgs boson pair in association with a top-antitop quark pair ($pp\rightarrow t\bar{t}hh$) has only recently begun to be explored at the Large Hadron Collider (LHC) and provides a unique and largely uncharted probe of the top-Higgs sector,…

• The Simons Observatory: forecasted constraints on primordial gravitational waves with the expanded array of Small Aperture Telescopes · 2026

  Résumé de la publication : We present updated forecasts for the scientific performance of the degree-scale (0.5 deg FWHM at 93 GHz), deep-field survey to be conducted by the Simons Observatory (SO). By 2027, the SO Small Aperture Telescope (SAT) complement will be doubled from three to…

• Cross sections of $\eta$ mesons in $p$ $+$ $p$ collisions at forward rapidity at $\sqrt{s}=500$ GeV and central rapidity at $\sqrt{s}=510$ GeV · 2026

  Résumé de la publication : We present the first measurements of the forward and midrapidity $η$-meson cross sections from $p$$+$$p$ collisions at $\sqrt{s}=500$ and $510$~GeV, respectively. We also report the midrapidity $η/π^0$ ratio at 510 GeV. The forward cross section is measured differentially in $η$-meson transverse momentum…

• Extracting a Toponium Signal at the LHC with Spin and Quantum Information Tools · 2026

  Résumé de la publication : We investigate near-threshold top-antitop production at the LHC, focusing on the impact of toponium formation on spin correlations and quantum information properties of the final state. Considering the top-antitop system as a mixed two-qubit state, we reconstruct spin density matrices via quantum…

• Euclid preparation. Methodology for validating the Euclid Catalogue of Galaxy Clusters using external data · 2026

  Résumé de la publication : We present our methodology for identifying known clusters as counterparts to objects in the Euclid Catalogue of Galaxy Clusters (ECGC). Euclid is expected to detect a large number of optically-selected galaxy clusters over the approximately 14000 square degrees of its extragalactic sky…