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2025-03-26
17:07
Search for events with one displaced vertex from long-lived neutral particles decaying into hadronic jets in the ATLAS muon spectrometer in $pp$ collisions at $\sqrt{s}=13$ TeV
A search for events with one displaced vertex from long-lived particles using data collected by the ATLAS detector at the Large Hadron Collider is presented, using 140 fb$^{-1}$ of proton-proton collision data at $\sqrt{s} = 13$ TeV recorded in 2015-2018. [...]
CERN-EP-2025-062. - 2025
Fulltext - Previous draft version

Detaljnije
2025-03-26
04:44
JENA Computing Initiative WP2 Report: Software and Heterogeneous Architectures / Al-Turany, Mohammad (Darmstadt, GSI) ; Chamont, David (IJCLab, Orsay) ; Costanzo, Davide (Sheffield U.) ; Doglioni, Caterina (U. Manchester (main)) ; Helstrup, Håvard (Bergen U.) ; Khélifi, Bruno (APC, Paris) ; Kuhr, Thomas (Munich U.) ; Laycock, Paul (Geneva Observ. ; Geneva U.) ; Matta, Adrien (LPC, Caen) ; Santos, Eva (Prague, Inst. Phys.) et al.
The scientific communities of nuclear, particle, and astroparticle physics are continuing to advance and are facing unprecedented software challenges due to growing data volumes, complex computing needs, and environmental considerations. [...]
arXiv:2503.09213. - 22.
Fulltext

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2025-03-26
04:41
The Large Hadron electron Collider as a bridge project for CERN / Ahmadova, F. (Garching, Max Planck Inst. ; Zurich U.) ; André, K. (CERN) ; Armesto, N. (Santiago de Compostela U., IGFAE) ; Azuelos, G. (Montreal U. ; TRIUMF) ; Behnke, O. (DESY) ; Boonekamp, M. (IRFU, Saclay) ; Bonvini, M. (INFN, Rome) ; Britzger, D. (Garching, Max Planck Inst.) ; Brüning, O. (CERN) ; Bud, T.A. (CERN) et al.
The LHeC is the project for delivering electron-nucleon collisions at CERN using the HL-LHC beams. [...]
arXiv:2503.17727. - 34.
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2025-03-25
21:21
Observation of nuclear modification of energy-energy correlators inside jets in heavy ion collisions
Energy-energy correlators are constructed by averaging the number of charged particle pairs within jets, weighted by the product of their transverse momenta, as a function of the angular separation of the particles within a pair. [...]
CERN-EP-2025-014 ; CMS-HIN-23-004-003. - 2025
Additional information for the analysis - CMS AuthorList - Fulltext

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2025-03-25
19:31
A measurement of the high-mass $\tau\bar{\tau}$ production cross-section at $\sqrt{s}=13$ TeV with the ATLAS detector and constraints on new particles and couplings
The production cross-section of high-mass $\tau$-lepton pairs is measured as a function of the dilepton visible invariant mass, using 140 fb$^{-1}$ of $\sqrt{s}=13$ TeV proton-proton collision data recorded with the ATLAS detector at the Large Hadron Collider. [...]
CERN-EP-2025-063. - 2025
Fulltext - Previous draft version

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2025-03-25
19:21
Measurements of the production cross-sections of a Higgs boson in association with a vector boson and decaying into $WW^\ast$ with the ATLAS detector at $\sqrt{s} = 13$ TeV
Measurements of the total and differential Higgs boson production cross-sections, via $WH$ and $ZH$ associated production using $H\rightarrow WW^\ast\rightarrow\ell\nu\ell\nu$ and $H\rightarrow WW^\ast\rightarrow\ell\nu jj$ decays, are presented. [...]
CERN-EP-2025-037. - 2025
Fulltext - Previous draft version

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2025-03-25
16:29
Observation of charge-parity symmetry breaking in baryon decays
The Standard Model of particle physics, the theory of particles and interactions at the smallest scale, predicts that matter and antimatter interact differently due to violation of the combined symmetry of charge conjugation ($C$) and parity ($P$). [...]
CERN-EP-2025-031 ; arXiv:2503.16954v1 ; LHCB-PAPER-2024-054. - 2025
Fulltext - Related data file(s) - Full text

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2025-03-25
04:36
Observation of charge-parity symmetry breaking in baryon decays / LHCb Collaboration
The Standard Model of particle physics, the theory of particles and interactions at the smallest scale, predicts that matter and antimatter interact differently due to violation of the combined symmetry of charge conjugation ($C$) and parity ($P$). [...]
LHCb-PAPER-2024-054 ; CERN-EP-2025-031 ; arXiv:2503.16954. - 29.
Fulltext

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2025-03-25
04:10
A Possible Future Use of the LHC Tunnel / Drewes, Marco (Louvain U., CP3) ; Shaposhnikova, Elena (CERN) ; Shaposhnikov, Mikhail (Ecole Polytechnique, Lausanne)
The FCC program at CERN provides an attractive all-in-one solution to address many of the key questions in particle physics. [...]
arXiv:2503.17081. - 11.
Fulltext

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2025-03-24
16:01
Future Circular Collider: The NbTi based Hadron Collider (FCC-NbTi) / Benedikt, Michael (CERN)
This report describes a novel research infrastructure, based on a 100 km circumference circular tunnel and a hadron collider, using NbTi superconducting magnet technology, with centre-of-mass collision energy of 37.5 TeV, providing a total integrated luminosity of around 10 ab-1 per experiment over a 20-year operation period, a factor of 3 or more larger than the HL-LHC. This collider will extend the current LHC energy frontier by a factor 2.7 and its physics potential has been assessed. [...]
CERN-FCC-ACC-2025-0001.- Geneva : CERN, 2019 Fulltext: PDF;

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