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2025-08-15
20:43
Search for a new scalar resonance decaying to a Higgs boson and another new scalar particle in the final state with two bottom quarks and two photons in proton-proton collisions at $ \sqrt{s}= $ 13 TeV
A search is presented for a new scalar resonance, X, decaying to a standard model Higgs boson and another new scalar particle, Y, in the final state where the Higgs boson decays to a $ \mathrm{b}\overline{\mathrm{b}} $ pair, while the Y particle decays to a pair of photons. [...]
CERN-EP-2025-160 ; CMS-B2G-24-001-003. - 2025
Additional information for the analysis - CMS AuthorList - Fulltext

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2025-08-15
06:26
Simulation-based inference with deep ensembles: Evaluating calibration uncertainty and detecting model misspecification / Alvey, James (Cambridge U., KICC ; Cambridge U., Inst. of Astron.) ; Contaldi, Carlo R (Imperial Coll., London) ; Pieroni, Mauro (CERN ; Madrid, Inst. Estructura Materia)
Simulation-Based Inference (SBI) offers a principled and flexible framework for conducting Bayesian inference in any situation where forward simulations are feasible. [...]
arXiv:2507.13495. - 2025 - 13.
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2025-08-15
06:26
Towards scalable quantum computations of atomic nuclei / Gu, Chenyi (Tennessee U.) ; Heinz, Matthias (Oak Ridge) ; Kiss, Oriel (CERN) ; Papenbrock, Thomas (Tennessee U. ; Oak Ridge)
We solve the nuclear two-body and three-body bound states via quantum simulations of pionless effective field theory on a lattice in position space. [...]
arXiv:2507.14690. - 2025 - 14.
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2025-08-15
06:26
Crystal Collimation Cleaning Measurements with 6.5 TeV protons in the LHC / Rossi, Roberto (CERN ; Imperial Coll., London) ; Cavoto, Gianluca (INFN, Rome ; Rome U.) ; Mirarchi, Daniele (CERN) ; Redaelli, Stefano (CERN) ; Scandale, Walter (CERN ; Imperial Coll., London)
Safe disposal of beam halo is a fundamental requirement of modern superconductive hadron colliders to reduce thermal load on magnets and background to experimental detectors. [...]
arXiv:2507.13315. - 2025 - 10.
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2025-08-15
06:26
Reduced Order Hysteretic Flux Model for Transport Current Homogenization in Composite Superconductors / Glock, Alexander (CERN ; Darmstadt, Tech. U.) ; Dular, Julien (CERN) ; Verweij, Arjan (CERN) ; Wozniak, Mariusz (CERN)
In this paper, we present the Reduced Order Hysteretic Flux (ROHF) model to describe the relationship between time-varying transport current and internal magnetic flux for composite superconductors. [...]
arXiv:2507.15402. - 2025 - 6.
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2025-08-15
05:03
A Comprehensive Bandwidth Testing Framework for the LHCb Upgrade Trigger System / Grazette, Luke (Warwick U.) ; Hunter, Ross (Warwick U.) ; Noomen, Ella (U. Heidelberg (main)) ; Skidmore, Nicole (Warwick U.) ; Stahl, Sascha (CERN) ; Vesterinen, Mika (Warwick U.) ; Zhang, Shunan (Oxford U.)
The LHCb experiment at CERN has undergone a comprehensive upgrade, including a complete re-design of the trigger system into a hybrid-architecture, software-only system that delivers ten times more interesting signals per unit time than its predecessor. [...]
arXiv:2503.19582. - 8.
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2025-08-15
04:58
Bubble Trouble: a Review on Electroweak Baryogenesis / van de Vis, Jorinde (CERN) ; de Vries, Jordy (Amsterdam U. ; Nikhef, Amsterdam) ; Postma, Marieke (Nikhef, Amsterdam ; Nijmegen U., IMAPP)
The origin of the universal asymmetry between matter and antimatter remains a mystery. [...]
CERN-TH-2025-161 ; Nikhef 2025-012 ; arXiv:2508.09989. - 123.
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2025-08-14
07:38
Guided Graph Compression for Quantum Graph Neural Networks / Casals, Mikel (Barcelona, Polytechnic U.) ; Belis, Vasilis (Zurich, ETH) ; Combarro, Elias F (U. Oviedo (main)) ; Alarcón, Eduard (Barcelona, Polytechnic U.) ; Vallecorsa, Sofia (CERN) ; Grossi, Michele (CERN)
Graph Neural Networks (GNNs) are effective for processing graph-structured data but face challenges with large graphs due to high memory requirements and inefficient sparse matrix operations on GPUs. [...]
arXiv:2506.09862. - 2025 - 11.
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2025-08-14
06:21
The AdS Perspective on the Nonlinear Tails in Black Hole Ringdown / Kehagias, Alex (Natl. Tech. U., Athens ; CERN) ; Riotto, Antonio (U. Geneva (main))
Black holes gradually settle into their static configuration by emitting gravitational waves, whose amplitude diminish over time according to a power-law decay at fixed spatial locations. [...]
arXiv:2506.14475. - 2025 - 7.
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2025-08-14
06:21
Not-quite-primordial black holes / Qin, Wenzer (New York U., CCPP) ; Kumar, Soubhik (New York U., CCPP) ; Natarajan, Priyamvada (Yale U. (main) ; Harvard U. (main)) ; Weiner, Neal (New York U., CCPP ; CERN ; CCA, New York)
We propose a new mechanism for the formation of seeds of supermassive black holes at early cosmic epochs. [...]
arXiv:2506.13858. - 2025 - 9.
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