CERN Accelerating science

მთავარი > CERN Articles & Preprints > CERN Published Articles

CERN Published Articles

ეძებე 111,392 ჩანაწერები:
ძებნის მინიშნებანი :: უბრალო ძებნა
დამატებულია/შესწორებულია: მდე:
დახარისხება: შედეგების ჩვენება: გამავალი ფორმატი:
უკანასკნელი დამატებები:
2024-06-07
06:37
Design and construction of the CMS Inner Tracker for the HL-LHC Upgrade / Papadopoulos, Alkiviadis (CERN) /CMS Tracker Collaboration
The High Luminosity Large Hadron Collider (HL-LHC) at CERN is expected to collide protons at a center-of-mass energy of 14 TeV and to reach the unprecedented peak instantaneous luminosity of 5–7.5×1034cm−2s−1 with an average number of pileup events of 140–200. This will allow the ATLAS and CMS experiments to collect integrated luminosities up to 3000–4000fb−1 during the project lifetime. [...]
2024 - 6 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1064 (2024) 169409
In : 13th International "Hiroshima" Symposium on the Development and Application of Semiconductor Tracking Detectors, Vancouver, Canada, 3 - 8 Dec 2023, pp.169409

დეტალური ჩანაწერი - მსგავსი ჩანაწერები
2024-06-07
06:37
Jet-Origin Identification and Its Application at an Electron-Positron Higgs Factory / Liang, Hao (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS) ; Zhu, Yongfeng (Peking U., SKLNPT) ; Wang, Yuexin (Beijing, Inst. High Energy Phys. ; CCAST World Lab, Beijing) ; Che, Yuzhi (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS) ; Ruan, Manqi (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS) ; Zhou, Chen (Peking U., SKLNPT) ; Qu, Huilin (CERN)
To enhance the scientific discovery power of high-energy collider experiments, we propose and realize the concept of jet-origin identification that categorizes jets into five quark species (b,c,s,u,d), five antiquarks (b¯,c¯,s¯,u¯,d¯), and the gluon. Using state-of-the-art algorithms and simulated νν¯H,H→jj events at 240 GeV center-of-mass energy at the electron-positron Higgs factory, the jet-origin identification simultaneously reaches jet flavor tagging efficiencies ranging from 67% to 92% for bottom, charm, and strange quarks and jet charge flip rates of 7%–24% for all quark species. [...]
2024 - 8 p. - Published in : Phys. Rev. Lett. 132 (2024) 221802 Fulltext: PDF;

დეტალური ჩანაწერი - მსგავსი ჩანაწერები
2024-06-07
06:37
The LHCb VELO detector: Design, operation and first results / Rodríguez Rodríguez, Efrén (Santiago de Compostela U., IGFAE) /LHCb Collaboration
The LHCb experiment has been upgraded during the second long shutdown of the Large Hadron Collider at CERN, and a new set of refurbished detectors are currently operating at the LHC. The Vertex Locator (VELO) detector surrounds the proton beams interaction region, it is responsible of the reconstruction of the proton–proton collision (primary vertices) as well as the decay vertices of long-lived particles (secondary vertices). [...]
2024 - 5 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1065 (2024) 169469 Fulltext: PDF;
In : 13th International "Hiroshima" Symposium on the Development and Application of Semiconductor Tracking Detectors, Vancouver, Canada, 3 - 8 Dec 2023, pp.169469

დეტალური ჩანაწერი - მსგავსი ჩანაწერები
2024-06-07
06:37
LHC Upgrades in preparation of Run 3 / Arduini, G (CERN) ; Baglin, V (CERN) ; Bartosik, H (CERN) ; Bottura, L (CERN) ; Bracco, C (CERN) ; Bradu, B (CERN) ; Bregliozzi, G (CERN) ; Brodzinski, K (CERN) ; Bruce, R (CERN) ; Calviani, M (CERN) et al.
The Large Hadron Collider (LHC) Long Shutdown 2(2019–2021), following LHC Run 2, was primarily dedicated to theupgrade of the LHC Injectors but it included also a significantamount of activities aimed at consolidation of the LHC machinecomponents, removal of known limitations and initial upgrades inview of the High-Luminosity LHC (HL-LHC) to favour the intensityramp-up during Run 3 (2022–2025). An overview of the majormodifications to the accelerator and its systems is followed by asummary of the results of the superconducting magnet trainingcampaign to increase the LHC operation energy beyond the maximumvalue of 6.5 TeV reached during Run 2. [...]
2024 - 138 p. - Published in : JINST 19 (2024) P05061 Fulltext: PDF;

დეტალური ჩანაწერი - მსგავსი ჩანაწერები
2024-06-07
06:37
Structural formation yield of GeV centers from implanted Ge in diamond / Wahl, Ulrich (IST, Lisbon (main)) ; Correia, João Guilherme (IST, Lisbon (main)) ; Costa, Ângelo (Leuven U.) ; Lamelas, Afonso (Aveiro U.) ; Amaral, Vítor (Aveiro U.) ; Johnston, Karl (CERN) ; Magchiels, Goele (Leuven U.) ; Tunhuma, Shandirai Malven (Leuven U.) ; Vantomme, André (Leuven U.) ; Pereira, Lino M C (Leuven U.)
In order to study the structural formation yield of germanium-vacancy (GeV) centers from implanted Ge in diamond, we have investigated its lattice location by using the β$^{−}$ emission channeling technique from the radioactive isotope $^{75}$Ge (t$_{1/2}$ = 83 min) produced at the ISOLDE/CERN facility. $^{75}$Ge was introduced via recoil implantation following 30 keV ion implantation of the precursor isotope $^{75}$Ga (126 s) with fluences around 2 × 10$^{12}$–5 × 10$^{13}$ cm$^{−2}$. [...]
2024 - 16 p. - Published in : Mat. Quant. Tech. 4 (2024) 025101 Fulltext: PDF;

დეტალური ჩანაწერი - მსგავსი ჩანაწერები
2024-06-07
06:37
Powering Tests Results of the First Batch of MCBXFB Magnets Produced in Industry / González, L (Madrid, CIEMAT) ; Domínguez, M (Madrid, CIEMAT) ; García-Matos, J A (Madrid, CIEMAT ; Comillas Pontifical U.) ; García-Tabarés, L (Madrid, CIEMAT) ; Martínez, T (Madrid, CIEMAT) ; Jardim, C Martins (Madrid, CIEMAT) ; Durán, Ó (Madrid, CIEMAT) ; Pérez, J M (Madrid, CIEMAT) ; Toral, F (Madrid, CIEMAT) ; Fiscarelli, L (CERN) et al.
MCBXF magnets are orbit nested correctors for the HL-LHC project, an upgrade of the Large Hadron Collider (LHC). The magnet design consists of two nested dipoles, with an aperture of 150 mm. [...]
2024 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 34 (2024) 4005505

დეტალური ჩანაწერი - მსგავსი ჩანაწერები
2024-06-07
06:37
Mitigation strategies for the instabilities induced by the fundamental mode of the HL-LHC Crab Cavities / Giacomel, L (CERN) ; Baudrenghien, P (CERN) ; Calaga, R (CERN) ; Buffat, X (CERN) ; Mounet, N (CERN)
The transverse impedance is one of the potentially limitingeffects for the performance of the High-Luminosity Large HadronCollider (HL-LHC). In the current LHC, the impedance is dominatedby the resistive-wall contribution of the collimators at typicalbunch-spectrum frequencies, and is of broad-bandnature. [...]
2024 - 14 p. - Published in : JINST 19 (2024) P05046 Fulltext: PDF;
In : 68th ICFA Advanced Beam Dynamics workshop on high-Intensity and High-Brightness Hadron Beams (HB 2023), CERN, Geneva, Switzerland, 9 - 13 Oct 2023, pp.P05046

დეტალური ჩანაწერი - მსგავსი ჩანაწერები
2024-06-07
06:37
Education, Outreach and EDI in Education and Outreach / Godinho, Ana (CERN)
This overview of education, outreach and EDI in education and outreach addresses the points below:1) Citizens’ attitudes to science and to scientists is overall positive, including as concerns trust in science and scientists. However, there is room for more engagement, especially regarding hearing directly from scientists.2) Direct interactions with scientists have a measurable, positive impact on the public and on students. [...]
2023 - 8 p. - Published in : PoS EPS-HEP2023 (2024) 019 Fulltext: PDF;
In : 2023 European Physical Society Conference on High Energy Physics (EPS-HEP2023), Hamburg, Germany, 20 - 25 Aug 2023, pp.019

დეტალური ჩანაწერი - მსგავსი ჩანაწერები
2024-06-07
06:37
Electrical Simulations of the SIS100 Superconducting Dipole and Quadrupole Circuits: Transients, Earthing and Failure Modes / Szwangruber, P B (Darmstadt, GSI) ; Raginel, V (Darmstadt, GSI) ; Delkov, D (Ilmenau Tech. U.) ; Ravaioli, E (CERN) ; Plyusnin, V (Darmstadt, GSI) ; Michna, M (Gdansk Tech. U.) ; Wilk, A (Gdansk Tech. U.) ; Wołoszyk, M (Gdansk Tech. U.) ; Freisleben, W (Darmstadt, GSI) ; Dziewiecki, M (Darmstadt, GSI) et al.
The 100 Tm superconducting synchrotron SIS100 is the main accelerator of the international Facility for Antiproton and Ion Research (FAIR) currently under advanced construction in Darmstadt, Germany. The SIS100 dipole circuit which creates the magnetic field required to bend the beam, consists of 108 dipoles distributed over six arc sections of the ring. [...]
2024 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 34 (2024) 4903805

დეტალური ჩანაწერი - მსგავსი ჩანაწერები
2024-06-07
06:37
Assessment of Training Performance, Degradation and Robustness of Paraffin-Wax Impregnated Nb3Sn Demonstrator Under High Magnetic Field / Araujo, D M (PSI, Villigen) ; Auchmann, B (PSI, Villigen ; CERN) ; Brem, A (PSI, Villigen) ; Daly, M (PSI, Villigen) ; Hug, C (PSI, Villigen) ; Michlmayr, T (PSI, Villigen) ; Amm, K (Brookhaven Natl. Lab.) ; Anerella, M (Brookhaven Natl. Lab.) ; Yahia, A Ben (Brookhaven Natl. Lab.) ; Cozzolino, J (Brookhaven Natl. Lab.) et al.
In the context of high-energy physics, the use of Nb3Sn superconducting magnets as a cost-effective and reliable technology depends on improvements in the following areas: long development and manufacturing cycles, conductor degradation after thermal cycling, long training, as well as a demonstration in accelerator magnets with a beam aperture of the full potential of modern Nb3Sn conductors. In short, performance, robustness, and cost are the three issues to be addressed. [...]
2024 - 8 p. - Published in : IEEE Trans. Appl. Supercond. 34 (2024) 7000208

დეტალური ჩანაწერი - მსგავსი ჩანაწერები