CERN Accelerating science

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1.
Software and computing for Run 3 of the ATLAS experiment at the LHC / ATLAS Collaboration
The ATLAS experiment has developed extensive software and distributed computing systems for Run 3 of the LHC. [...]
arXiv:2404.06335 ; CERN-EP-2024-100.
- 2024 - 175.
Fulltext - Previous draft version - Fulltext
2.
Characterization of bent crystals for beam collimation with 6.8 TeV proton beams at the LHC / D'Andrea, Marco (CERN) ; Aberle, Oliver (CERN) ; Abramov, Andrey (CERN) ; Bandiera, Laura (INFN, Ferrara) ; Bruce, Roderik (CERN) ; Cai, Rongrong (CERN ; EPFL-ISIC, Lausanne) ; Calviani, Marco (CERN) ; Demassieux, Quentin (CERN) ; Dewhurst, Kay Alana (CERN) ; Di Castro, Mario (CERN) et al.
The concept of crystal collimation exploits the peculiar properties of crystalline materials to deflect high-energy beam particles at angles orders of magnitude larger than what can be achieved with scattering by conventional materials used as primary collimators. This innovative technique is planned to be used to improve the collimation efficiency with heavy-ion beams at the Large Hadron Collider (LHC) and its High-Luminosity upgrade (HL-LHC). [...]
2023 - 8 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1060 (2024) 169062 Publication: PDF;
In : 9th International Conference on Charged & Neutral Particles Channeling Phenomena (Channeling 2023), Riccione, Italy, 4 - 9 June 2023, pp.169062
3.
Collimation performance of the 400MJ LHC beam at 6.8 TeV / Van der Veken, Frederik (CERN) ; Abramov, Andrey (CERN) ; Azzopardi, Gabriella (CERN) ; Broggi, Giacomo (CERN) ; Bruce, Roderik (CERN) ; Cai, Rongrong (CERN) ; D'Andrea, Marco (CERN) ; Dewhurst, K A (CERN) ; Frasca, Alessandro (CERN) ; Hermes, Pascal (CERN) et al.
During the third operational run of the Large Hadron Collider at CERN, starting in 2022, the beam energy was increased to 6.8 TeV and the bunch population is planned to be pushed to unprecedented levels. Already in the first year of operation, beam stored energies up to 400 MJ were achieved. [...]
2023 - 4 p. - Published in : JACoW IPAC 2023 (2023) TUPM119 Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.TUPM119
4.
Crystal collimation performance at the LHC with a 6.8 TeV proton beam / D'Andrea, M (CERN) ; Aberle, O (CERN) ; Abramov, A (CERN) ; Bruce, R (CERN) ; Cai, R (CERN ; Ecole Polytechnique, Lausanne) ; Calviani, M (CERN) ; Demassieux, Q (CERN) ; Dewhurst, K A (CERN) ; Di Castro, M (CERN) ; Esposito, L S (CERN) et al.
Crystal collimation is studied to improve the collimation efficiency with ion beams at the High-Luminosity Large Hadron Collider (HL-LHC). Bent crystals are used instead of conventional primary collimators to deflect high-energy halo particles at angles orders of magnitude larger than what can be achieved with scattering by conventional materials. [...]
2023 - 4 p. - Published in : JACoW IPAC 2023 (2023) MOPL023 Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.MOPL023
5.
Performance of a double-crystal setup for LHC fixed-target experiments / Dewhurst, K A (CERN) ; D'Andrea, M (CERN) ; Hermes, P D (CERN) ; Mirarchi, D (CERN) ; Redaelli, S (CERN) ; Patecki, M (Warsaw U. of Tech.)
The Physics Beyond Colliders (PBC) studies at CERN address the possibility to utilise protons in the Large Hadron Collider (LHC) for a fixed-target program beyond the colliding-beam physics. As part of PBC, a double-crystal test stand is considered for installation in the LHC off-momentum collimation Insertion Region (IR) 3. [...]
CERN-PBC-CONF-2024-003.- 2023 - 4 p. - Published in : JACoW IPAC 2023 (2023) MOPL048 Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.MOPL048
6.
Measurement of the inclusive $t\bar{t}$ production cross section in the lepton+jets channel in $pp$ collisions at $\sqrt{s}$= 7 TeV with the ATLAS detector using support vector machines / ATLAS Collaboration
A measurement of the top quark pair-production cross section in the lepton+jets decay channel is presented. It is based on 4.6 fb$^{-1}$ of $\sqrt{s} = 7$ TeV $pp$ collision data collected during 2011 by the ATLAS experiment at the CERN Large Hadron Collider. [...]
arXiv:2212.00571; CERN-EP-2022-191.- Geneva : CERN, 2023-08-01 - 34 p. - Published in : Phys. Rev. D 108 (2023) 032014 Fulltext: 2212.00571 - PDF; Publication - PDF; External link: Previous draft version
7.
Two-particle Bose–Einstein correlations in ${ pp }$ collisions at $\mathbf {\sqrt{s} = 13}$ TeV measured with the ATLAS detector at the LHC / ATLAS Collaboration
This paper presents studies of Bose-Einstein correlations (BEC) in proton-proton collisions at a centre-of-mass energy of 13 TeV, using data from the ATLAS detector at the CERN Large Hadron Collider. Data were collected in a special low-luminosity configuration with a minimum-bias trigger and a high-multiplicity track trigger, accumulating integrated luminosities of 151 $\mu$b$^{-1}$ and 8.4 nb$^{-1}$ respectively. [...]
arXiv:2202.02218; CERN-EP-2021-172.- Geneva : CERN, 2022-07-11 - 38 p. - Published in : Eur. Phys. J. C 82 (2022) 608 Fulltext: 2202.02218 - PDF; document - PDF; External link: Previous draft version
8.
Designing the RAL Tier-1 Network for HL-LHC and Future data lakes / Dewhurst, Alastair (speaker) (Lancaster University)
The Rutherford Appleton Laboratory (RAL) runs the UK Tier-1 which supports all four LHC experiments, as well as a growing number of others in HEP, Astronomy and Space Science. In September 2020, RAL was provided with funds to upgrade its network. [...]
2021 - 1081. Conferences; 25th International Conference on Computing in High Energy & Nuclear Physics External links: Talk details; Event details In : 25th International Conference on Computing in High Energy & Nuclear Physics
9.
Measurement of single top-quark production in association with a W boson in the single-lepton channel at $\sqrt{s} = 8\,\text {TeV}$ with the ATLAS detector / ATLAS Collaboration
The production cross-section of a top quark in association with a $W$ boson is measured using proton-proton collisions at $\sqrt{s} = 8$ TeV. The dataset corresponds to an integrated luminosity of 20.2 fb$^{-1}$, and was collected in 2012 by the ATLAS detector at the Large Hadron Collider at CERN. [...]
arXiv:2007.01554; CERN-EP-2019-221.- Geneva : CERN, 2021-08-10 - 42 p. - Published in : Eur. Phys. J. C 81 (2021) 720 Fulltext: 2007.01554 - PDF; document - PDF; External link: Previous draft version
10.
Search for direct production of electroweakinos in final states with missing transverse momentum and a Higgs boson decaying into photons in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector / ATLAS Collaboration
A search for a chargino$-$neutralino pair decaying via the 125 GeV Higgs boson into photons is presented. The study is based on the data collected between 2015 and 2018 with the ATLAS detector at the LHC, corresponding to an integrated luminosity of 139 fb$^{-1}$ of $pp$ collisions at a centre-of-mass energy of 13 TeV. [...]
arXiv:2004.10894; CERN-EP-2019-204.- Geneva : CERN, 2020-10-01 - 46 p. - Published in : JHEP 2010 (2020) 005 Article from SCOAP3: PDF; Fulltext: PDF; External link: Previous draft version

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