As previously announced, submissions of Theses has been temporary blocked and content will be migrated on Thursday, May 15th 2025.

CERN Accelerating science

CERN Preprints

Последние добавления:
2025-05-14
05:22
Black holes with electroweak hair -- the detailed derivation / Gervalle, Romain (IDP, Tours) ; Volkov, Mikhail S. (IDP, Tours ; CERN)
We present a very detailed derivation of solutions describing hairy black holes within the gravity-coupled Weinberg-Salam theory, which were previously reported in \href{https://doi.org/10.1103/PhysRevLett.133.171402}{Phys.Rev.Lett. [...]
arXiv:2504.09304.
- 99.
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2025-05-14
05:21
Angular structure of many-body correlations in atomic nuclei: From nuclear deformations to diffractive vector meson production in $\gamma A$ collisions / Blaizot, Jean-Paul (IPhT, Saclay) ; Giacalone, Giuliano (IPhT, Saclay ; CERN)
There is growing evidence that high-energy scattering processes involving nuclei can offer unique insights into the many-body correlations present in nuclear ground states, in particular those of deformed nuclei. [...]
arXiv:2504.15421.
- 19.
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2025-05-14
05:13
High Field Magnet Programme -- European Strategy Input / Alfonso, L. (INFN, Parma) ; Ambrosio, G. (Fermilab) ; Araujo, D. (PSI, Villigen) ; Arpaia, P. (INFN, Parma) ; Auchmann, B. (PSI, Villigen ; CERN) ; Axensalva, J. (CERN) ; Balconi, L. (INFN, Milan ; Milan U. ; INFN, Parma) ; Ballarino, A. (CERN) ; Barzi, E. (Ohio State U. ; Unlisted) ; Baskys, A. (CERN) et al.
In this submission, we describe research goals, implementation, and timelines of the High Field Magnet Programme, hosted by CERN. [...]
FERMILAB-PUB-25-0283-TD ; arXiv:2504.16885.
- 15.
Fermilab Library Server - Fulltext - Fulltext

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2025-05-13
17:14
Leptoquark searches at ATLAS and CMS / Neutelings, Izaak Willem (CERN) /ATLAS and CMS Collaborations
An overview of searches for leptoquarks in proton-proton collisions at ATLAS and CMS are presented, with a focus on results from the Run-2 dataset collected between 2016 and 2018 at $\sqrt{s}=13$\,TeV, and corresponding to an integrated luminosity of $137{-}140\,\mathrm{fb}^{-1}$. In particular, recent results are highlighted..
CMS-CR-2025-115.- Geneva : CERN, 2025 - 7 p. Fulltext: PDF;
In : 59th Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, It, 23 - 30 Mar 2025

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2025-05-13
17:14
Qualification of Bump Bonding in CMS Inner Tracker Pixel Modules for the Phase-2 Upgrade / Assiouras, Panagiotis (INFN, Florence) /CMS Collaboration
To fully exploit the increased luminosity of the HL-LHC, the CMS Inner Tracker is undergoing a major upgrade to withstand extreme radiation levels and data rates, while improving granularity and reducing material budget. The upgraded modules employ thin planar and 3D silicon pixel sensors, bump bonded to a new radiation-hard readout chip, the CROC, designed in 65 nm CMOS technology and powered via a serial scheme. [...]
arXiv:2505.06752; CMS-CR-2025/110.- Geneva : CERN, 2025 - 8 p. Fulltext: CR2025_110 - PDF; 2505.06752 - PDF;
In : 20th Anniversary ”Trento” workshop on Advanced Silicon Radiation Detectors, Trento, It, 4 - 6 Feb 2025

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2025-05-13
17:14
Current status of the CMS Inner Tracker upgrade for HL-LHC / Lorenzo Damenti of the CMS Collaboration /CMS Collaboration
During the High Luminosity programme of the LHC collider (called HL-LHC), planned to start in 2030, the instantaneous luminosity will be increased from $\sim2\times10^{34}cm^{-2}s^{-1}$ to an unprecedented figure of about $\sim7.5\times10^{34}cm^{-2}s^{-1}$. This will allow the Compact Muon Solenoid (CMS) to collect up to $\sim4000 fb^{-1}$ of integrated luminosity over a decade. In order to cope with the much higher pp-collisions rate, CMS will undergo an extensive improvement known as Phase 2 upgrade: in particular, the silicon tracker system will be entirely replaced to comply with the extremely challenging experimental conditions. This contribution will review the main upgrades of the CMS Inner Tracker and will present the most relevant design and technological choices. [...]
CMS-CR-2025-107.- Geneva : CERN, 2025 - 11 p. Fulltext: PDF;
In : 20th Anniversary ”Trento” workshop on Advanced Silicon Radiation Detectors, Trento, It, 4 - 6 Feb 2025

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2025-05-13
17:14
CMS FIPs results and prospects / Alimena, Juliette (DESY) /CMS Collaboration
The CMS Collaboration has recently written a report about the latest searches with the CMS Experiment in the dark sector. This report is a comprehensive review of dark sector searches with the CMS experiment at the LHC, using proton-proton and heavy ion collision data collected in Run 2, from 2016 to 2018, or, in some cases, from Run 1 (2011--2012) or Run 3 (2022). [...]
CMS-CR-2025-097.- Geneva : CERN, 2025 - 18 p. Fulltext: PDF;
In : FIPLHCB, Geneva, Ch, 5 - 7 Feb 2025

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2025-05-13
17:14
Study of efficiency of the GEM GE1/1 detector station with CMS Run-3 data / Thakur, Shalini (Tarapaca U.) /CMS Collaboration
The CMS muon system is being upgraded with the GE1/1 station of Gas Electron Multiplier (GEM) detectors to handle the increased muon flux in the very forward eta region. This work analyzes muon detection efficiency with the GE1/1 station using p-p collision data with center of mass energy of 13.6 TeV. [...]
CMS-CR-2025-023.- Geneva : CERN, 2025 - 6 p. Fulltext: PDF;
In : 26th DAE-BRNS High Energy Physics Symposium 2024, Varanasi, India, 19 - 23 Dec 2024

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2025-05-13
16:37
The environmental impact, carbon emissions and sustainability of computing in the ATLAS experiment
ATLAS, a general-purpose experiment at the Large Hadron Collider (LHC), operates a large internationally-distributed computing infrastructure, including over $10^6$ TB of managed data on disk and tape and almost one million simultaneously running CPU cores. [...]
CERN-EP-2025-105.
- 2025
Fulltext - Previous draft version

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2025-05-13
14:23
Observation of double parton scattering in same-sign W boson pair production in pp collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
This letter reports the measurement of double parton scattering in same-sign W boson pair production with the ATLAS detector. [...]
CERN-EP-2025-109.
- 2025
Fulltext - Previous draft version

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