CERN Accelerating science

CERN Preprints

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2024-11-13
11:38
A new cold cooling system using krypton for the future upgrade of the LHC after the long shutdown 4 (LS4) / Contiero, Luca (Norwegian University of Science and Technology (NTNU) (NO)) ; Verlaat, Bart (CERN) ; Hafner, Armin (Norwegian University of Science and Technology (NTNU) (NO)) ; Banasiak, Krzysztof (Norwegian University of Science and Technology (NTNU) (NO)) ; Allouche, Yosr (Norwegian University of Science and Technology (NTNU) (NO)) ; Petagna, Paolo (CERN)
Future silicon detectors for high-energy physics experiments will require operation at lower temperatures to cope with radiation damage to the sensors and the consequent increase of dark current, beyond the limit of the current CO2 evaporative cooling system. This, along with other requirements such as mass minimization and high radiation hardness, drives the need for new advanced cooling technology. [...]
AIDAinnova-PUB-2024-001.- Geneva : CERN, 2024

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2024-11-13
04:22
Study of baryon-strangeness and charge-strangeness correlations in Pb$-$Pb collisions at $\sqrt{s_\mathrm{NN}}$ = 5.02 TeV with ALICE / Saha, Swati (Bhubaneswar, NISER ; HBNI, Mumbai)
In the quest to unravel the mysteries of the strong force and the underlying properties of the quark-gluon plasma, the ALICE collaboration at CERN has carried out a comprehensive study focusing on the correlations between net-conserved quantities such as net-baryon, net-charge and net-strangeness. [...]
arXiv:2411.07002.
- 4.
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2024-11-13
04:14
wilson: A package for renormalization group running in the SMEFT with Sterile Neutrinos / Aebischer, Jason (CERN) ; Kapoor, Tejhas (IJCLab, Orsay) ; Kumar, Jacky (Los Alamos)
Sterile neutrinos are well-motivated beyond the Standard Model (BSM) particles. [...]
CERN-TH-2024-186 ; LA-UR-24-31845 ; arXiv:2411.07220.
- 14.
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2024-11-12
12:46
Performance Optimization of the CLIC Positron Source / Zhao, Yongke (CERN) ; Doebert, Steffen (CERN) ; Latina, Andrea (CERN)
The baseline configuration of the CLIC positron source is optimized at different center-of-mass energy stages of the collider for different acceleration modes. [...]
CERN-ACC-2024-0005 ; CLIC-Note-1200.
- 2024 - 12.
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2024-11-12
10:50
Search for vector-like leptons coupling to first- and second-generation Standard Model leptons in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector / ATLAS Collaboration
A search for pair production of vector-like leptons coupling to first- and second-generation Standard Model leptons is presented. [...]
arXiv:2411.07143 ; CERN-EP-2024-296.
- 2024 - 58 p, 58.
Fulltext - Previous draft version - Fulltext

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2024-11-12
04:08
Combination of aN$^3$LO PDFs and implications for Higgs production cross-sections at the LHC / MSHT Collaboration
We discuss how the two existing approximate N$^3$LO (aN$^3$LO) sets of parton distributions (PDFs) from the MSHT20 and NNPDF4.0 series can be combined for LHC phenomenology, both in the pure QCD case and for the QCD$\otimes$QED sets that include the photon PDF. [...]
arXiv:2411.05373 ; DESY-24-134 ; TIF-UNIMI-2024-17 ; Edinburgh 2024/9 ; CERN-TH-2024-167.
- 22.
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2024-11-12
04:07
Measurement of the $\psi(2S)$ to $J/\psi$ cross-section ratio as a function of centrality in PbPb collisions at $\sqrt{s_{\text{NN}}}$ = 5.02 TeV / LHCb Collaboration
The dissociation of quarkonium states with different binding energies produced in heavy-ion collisions is a powerful probe for investigating the formation and properties of the quark-gluon plasma. [...]
CERN-EP-2024-272 ; LHCb-PAPER-2024-041 ; arXiv:2411.05669.
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2024-11-12
04:02
Reusable Verification Components for High-Energy Physics readout ASICs / Lupi, M. (CERN) ; Esposito, S. (CERN) ; Llopart-Cudie, X. (CERN) ; Pulli, A. (CERN) ; Scarfí, S. (CERN) ; Kharwadkar, N. (Fermilab)
Verification is a critical aspect of designing front-end (FE) readout ASICs for High-Energy Physics (HEP) experiments. [...]
FERMILAB-PUB-24-0828 ; arXiv:2411.03478.
- 5.
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2024-11-11
14:42
Searches for heavy neutral leptons with machine learning at the CMS experiment / Knolle, Joscha (Gent U.) /CMS Collaboration
Two recent searches for heavy neutral leptons (HNLs) performed with proton-proton collision data recorded at 13 TeV by the CMS experiment are presented. A prompt search in the trilepton final state analyses events with exactly three charged leptons originating from the primary proton-proton interaction vertex, targeting HNL masses between 10 GeV and 1.5 TeV. [...]
CMS-CR-2024-303.- Geneva : CERN, 2024 - 5 p. Fulltext: PDF;
In : 12th Edition of the Large Hadron Collider Physics Conference, Boston, Us, 3 - 7 Jun 2024

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2024-11-11
14:42
Radiation and magnetic field qualification of LVPS - a unified 12V DC power source for the CMS detector. / Stachon, Krzysztof (Zurich, ETH) ; Dissertori, Gunther (Zurich, ETH) ; Gadek, Tomasz (Zurich, ETH) ; Lustermann, Werner (Zurich, ETH) /CMS Collaboration
Efforts aiming at consolidating the powering for the CMS detector have led to the development of a Low Voltage Power Supply (LVPS). The LVPS converts 380 V DC to 12 V DC, suitable for powering the widely used bPOL12V point-of-load DC-DC converter. [...]
CMS-CR-2024-301.- Geneva : CERN, 2024 - 8 p. Fulltext: PDF;
In : Topical Workshop on Electronics for Particle Physics 2024, Glasgow, United Kingdom, 30 Sep - 4 Oct 2024

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