CERN Accelerating science

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1.
First measurement of the surface tension of a liquid scintillator based on Linear Alkylbenzene (HYBLENE 113) / SHiP SBT Collaboration
We measured the surface tension of linear alkylbenzene (LAB) HYBLENE 113 mixed with Diphenyloxazole (PPO) as well as of pure LAB HYBLENE 113 as part of material studies for the liquid-scintillator based surround background tagger (SBT) in the proposed SHiP experiment. The measurement was performed using the iron wire method and the surface tension for linear alkyl benzene HYBLENE 113 plus PPO was found to be $(30.0\pm0.6)$ mN/m $22.0\pm 0.5${\deg}C and for pure HYBLENE 113, $(29.2\pm 0.6)$ mN/m at $21.0\pm 0.5${\deg}C..
arXiv:2201.12139.- 2022-05-11 - 5 p. - Published in : JINST 17 (2022) T05012 Fulltext: document - PDF; 2201.12139 - PDF;
2.
Reconstruction of 400 GeV/c proton interactions with the SHiP-charm project / SHiP Collaboration
The SHiP-charm project was proposed to measure the associated charm production induced by 400 GeV/c protons in a thick target, including the contribution from cascade production. An optimisation run was performed in July 2018 at CERN SPS using a hybrid setup. [...]
arXiv:2406.04730; CERN-SHiP-NOTE-2020-002.- Geneva : CERN, 2024-06-04 - 10 p. - Published in : Eur. Phys. J. C 84 (2024) 562 Fulltext: Proton_reconstruction_SHiP-charm_v3 - PDF; document - PDF; 2406.04730 - PDF; Publication: PDF;
3.
Observation of collider muon neutrinos with the SND@LHC experiment / SND@LHC Collaboration
We report the direct observation of muon neutrino interactions with the \SND detector at the Large Hadron Collider. A data set of proton-proton collisions at $\sqrt{s} = 13.6\,$TeV collected by \SND in 2022 is used, corresponding to an integrated luminosity of 36.8$\,\rm{fb}^{-1}$. [...]
arXiv:2305.09383; CERN-EP-2023-092.- 2023-07-19 - 8 p. - Published in : Phys. Rev. Lett. 131 (2023) 031802 Draft (restricted): PDF; Fulltext: Publication - PDF; CERN-EP-2023-092 - PDF; 2305.09383 - PDF;
4.
$\alpha_{QED, eff}$(s) for precision physics at the FCC-ee/ILC / Jegerlehner, F (DESY, Zeuthen ; Humboldt U., Berlin)
Discovering “Physics behind precision” at future linear or circular colliders (ILC/FCC projects) requires improved SM predictions based on more precise input parameters. I will review the role $α_{QED, eff}$ at future collider energies and report on possible progress based on results from low energy machines..
2019 - 29 p. - Published in : 10.23731/CYRM-2020-003.9 Fulltext: PDF;
In : Theory for the FCC-ee : Report on the 11th FCC-ee Workshop Theory and Experiments, pp.9-37
5.
Feasibility Study for an EDM Storage Ring / CPEDM Collaboration
This project exploits charged particles confined as a storage ring beam (proton, deuteron, possibly $^3$He) to search for an intrinsic electric dipole moment (EDM, $\vec d$) aligned along the particle spin axis. [...]
arXiv:1812.08535 ; CERN-PBC-REPORT-2021-003.
- 2018. - 14 p.
Fulltext
6.
Track reconstruction and matching between emulsion and silicon pixel detectors for the SHiP-charm experiment / SHiP Collaboration
In July 2018 an optimization run for the proposed charm cross section measurement for SHiP was performed at the CERN SPS. A heavy, moving target instrumented with nuclear emulsion films followed by a silicon pixel tracker was installed in front of the Goliath magnet at the H4 proton beamline. [...]
arXiv:2112.11754.- 2022-03-16 - 14 p. - Published in : JINST Fulltext: 2112.11754 - PDF; document - PDF;
7.
The SHiP experiment at the proposed CERN SPS Beam Dump Facility / SHiP Collaboration
The Search for Hidden Particles (SHiP) Collaboration has proposed a general-purpose experimental facility operating in beam-dump mode at the CERN SPS accelerator to search for light, feebly interacting particles. The SHiP experiment incorporates two complementary detectors. [...]
arXiv:2112.01487.- 2022-05-26 - 23 p. - Published in : Eur. Phys. J. C 82 (2022) 486 Fulltext: document - PDF; 2112.01487 - PDF;
8.
Measurement of the muon flux at the SND@LHC experiment / SND@LHC Collaboration
The Scattering and Neutrino Detector at the LHC (\SND) is a compact standalone experiment, which started taking data at the beginning of Run 3 of the LHC. The experiment is designed to perform measurements with neutrinos produced in proton-proton collisions at the LHC in an energy range between~100~GeV and~1~TeV, and a previously unexplored pseudo-rapidity range of \mbox{$7.2<\eta<8.4$} [...]
arXiv:2310.05536; CERN-EP-2023-222.- Geneva : CERN, 2024-01-27 - 11 p. - Published in : Eur. Phys. J. C 84 (2024) 90 Draft (restricted): PDF; Fulltext: 2310.05536 - PDF; CERN-EP-2023-222 - PDF; document - PDF;
9.
Symanzik Improvement with Dynamical Charm: A 3+1 Scheme for Wilson Quarks / Fritzsch, Patrick (CERN) ; Sommer, Rainer (NIC, Zeuthen ; Humboldt U., Berlin) ; Stollenwerk, Felix (Humboldt U., Berlin) ; Wolff, Ulli (Humboldt U., Berlin) /ALPHA Collaboration
We discuss the problem of lattice artefacts in QCD simulations enhanced by the introduction of dynamical charmed quarks. In particular, we advocate the use of a massive renormalization scheme with a close to realistic charm mass. [...]
arXiv:1805.01661; CERN-TH-2018-084; DESY-18-058; HU-EP-18-10.- 2018-06-05 - 20 p. Article from SCOAP3: PDF; Fulltext: PDF;
10.
Consistent Conformal Extensions of the Standard Model / Loebbert, Florian (Humboldt U., Berlin) ; Miczajka, Julian (Humboldt U., Berlin) ; Plefka, Jan (Humboldt U., Berlin ; CERN)
The question of whether classically conformal modifications of the standard model are consistent with experimental obervations has recently been subject to renewed interest. The method of Gildener and Weinberg provides a natural framework for the study of the effective potential of the resulting multi-scalar standard model extensions. [...]
arXiv:1805.09727; HU-EP-18/16; HU-EP-18-16; CERN-TH-2018-125.- 2019-01-23 - 16 p. - Published in : Phys. Rev. D 99 (2019) 015026 Article from SCOAP3: PDF; Fulltext: PDF;

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