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2025-04-18
04:08
How Accidental was Inflation? / Antoniadis, Ignatios (Chulalongkorn U. ; Paris, LPTHE) ; Ellis, John (King's Coll. London ; CERN) ; Ke, Wenqi (Minnesota U.) ; Nanopoulos, Dimitri V. (CERN ; Athens Academy ; Texas A-M) ; Olive, Keith A. (Minnesota U.)
Data on the cosmic microwave background (CMB) are discriminating between different models of inflation, disfavoring simple monomial potentials whilst being consistent with models whose predictions resemble those of the Starobinsky $R + R^2$ cosmological model. [...]
UMN-TH-4418/25 ; FTPI-MINN-25/03 ; KCL-PH-TH/2025-09 ; CERN-TH-2025-076 ; arXiv:2504.12283. - 28.
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2025-04-18
04:06
SHiP experiment at the SPS Beam Dump Facility / SHiP Collaboration
In 2024, the SHiP experiment, together with the associated Beam Dump Facility (BDF) under the auspices of the High Intensity ECN3 (HI-ECN3) project, was selected for the future physics exploitation of the ECN3 experimental facility at the SPS. [...]
arXiv:2504.06692. - 15.
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2025-04-18
04:03
Search for additional scalar bosons within the Inert Doublet Model in a final state with two leptons at the FCC-ee / Bal, Anubha (Imperial Coll., London) ; Curtis, Edward (Imperial Coll., London) ; Magnan, Anne-Marie (Imperial Coll., London) ; Maier, Benedikt (Imperial Coll., London) ; Robens, Tania (Boskovic Inst., Zagreb ; CERN) ; Wardle, Nicholas (Imperial Coll., London)
In this work, we investigate the discovery reach of a new physics model, the Inert Doublet Model, at an $e^+e^-$ machine with centre-of-mass energies $\sqrt{s}$ of 240 and 365 GeV. [...]
RBI-ThPhys-2025-08 ; CERN-TH-2025-069 ; arXiv:2504.12178. - 18.
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2025-04-17
21:41
Combination and interpretation of differential Higgs boson production cross sections in proton-proton collisions at $ \sqrt{s}= $ 13 TeV
Precision measurements of Higgs boson differential production cross sections are a key tool to probe the properties of the Higgs boson and test the standard model. [...]
CERN-EP-2025-065 ; CMS-HIG-23-013-003. - 2025
Additional information for the analysis - CMS AuthorList - Fulltext

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2025-04-17
04:17
The path towards measuring the gravitational field of proton bunches at accelerators / Braun, Daniel (Tubingen U.) ; Cai, Rongrong (CERN) ; Hermes, Pascal (CERN) ; Marchese, Marta Maria (IST, Austria) ; Nimmrichter, Stefan (Siegen U.) ; Pfeifer, Christian (Bremen U. ; Transilvania U., Brasov) ; Rätzel, Dennis (Bremen U.) ; Redaelli, Stefano (CERN) ; Ulbricht, Hendrik (Southampton U.)
The Newtonian law describing the gravitational interaction of non-relativistic (slowly moving) gravitating matter, has been tested in many laboratory experiments with very high precision. [...]
arXiv:2504.10942. - 8.
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2025-04-17
04:16
Probing Long-Range Forces in Neutrino Oscillations at the ESSnuSB Experiment / ESSnuSB Collaboration
Neutrino oscillations constitute an excellent tool to probe physics beyond the Standard Model. [...]
arXiv:2504.10480. - 31.
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2025-04-17
04:04
t-channel dark matter at the LHC / Arina, Chiara (Louvain U., CP3) ; Fuks, Benjamin (Paris, LPTHE) ; Panizzi, Luca (Calabria U. ; INFN, Cosenza) ; Baker, Michael J. (Massachusetts U., Amherst) ; Cornell, Alan S. (Johannesburg U.) ; Heisig, Jan (RWTH Aachen U.) ; Maier, Benedikt (Imperial Coll., London) ; Pedro, Rute (LIP, Lisbon) ; Trischuk, Dominique (Caltech, Pasadena (main) ; Brandeis U.) ; Agin, Diyar (Paris, LPTHE) et al.
This report, summarising work achieved in the context of the LHC Dark Matter Working Group, investigates the phenomenology of $t$-channel dark matter models, spanning minimal setups with a single dark matter candidate and mediator to more complex constructions closer to UV-complete models. [...]
CERN-LPCC-2025-001 ; IRMP-CP3-25-07 ; TTK-25-07 ; arXiv:2504.10597. - 101.
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2025-04-16
04:08
Revealing the harmonic structure of nuclear two-body correlations in high-energy heavy-ion collisions / Duguet, Thomas (IRFU, Saclay) ; Giacalone, Giuliano (CERN) ; Jeon, Sangyong (McGill U.) ; Tichai, Alexander (Darmstadt, Tech. U. ; Darmstadt, EMMI ; Heidelberg, Max Planck Inst.)
Smashing nuclei at ultrarelativistic speeds and analyzing the momentum distribution of outgoing debris provides a powerful method to probe the many-body properties of the incoming nuclear ground states. [...]
arXiv:2504.02481. - 11.
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2025-04-16
04:07
Spectroscopy of Strange Mesons and First Observation of a Strange Crypto-Exotic State with $J^P=0^-$ / COMPASS Collaboration
We measured the strange-meson spectrum in the scattering reaction $K^{-}+p \rightarrow K^{-}\pi^{-}\pi^{-}+p$ with the COMPASS spectrometer at CERN. [...]
CERN-EP-2025-086 ; arXiv:2504.09470. - 26 p, 26.
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2025-04-16
04:07
Logarithmic angle-dependent gauge transformations at null infinity / Fuentealba, Oscar (U. Arturo Prat, Iquique ; Intl. Solvay Inst., Brussels) ; Henneaux, Marc (Intl. Solvay Inst., Brussels ; CERN ; College de France)
Logarithmic angle-dependent gauge transformations are symmetries of electromagnetism that are canonically conjugate to the standard $\mathcal O(1)$ angle-dependent $u(1)$ transformations. [...]
arXiv:2504.05385. - 61.
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