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CERN Accelerating science

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1.
CEPC Technical Design Report: Accelerator / CEPC Study Group Collaboration
The Circular Electron Positron Collider (CEPC) is a large scientific project initiated and hosted by China, fostered through extensive collaboration with international partners. The complex comprises four accelerators: a 30 GeV Linac, a 1.1 GeV Damping Ring, a Booster capable of achieving energies up to 180 GeV, and a Collider operating at varying energy modes (Z, W, H, and ttbar). [...]
arXiv:2312.14363; IHEP-CEPC-DR-2023-01; IHEP-AC-2023-01.- 2024-06-03 - 1106 p. - Published in : Radiat. Detect. Technol. Methods 8 (2024) 1-1105 Fulltext: 2312.14363 - PDF; Publication - PDF;
2.
The New Small Wheel electronics / Iakovidis, G. (Brookhaven) ; Levinson, L. (Weizmann Inst.) ; Afik, Y. (Technion) ; Alexa, C. (Bucharest, IFIN-HH) ; Alexopoulos, T. (Natl. Tech. U., Athens) ; Ameel, J. (Michigan U.) ; Amidei, D. (Michigan U.) ; Antrim, D. (UC, Irvine ; Unlisted, US, CA) ; Badea, A. (Imperial Coll., London) ; Bakalis, C. (Brookhaven ; Natl. Tech. U., Athens ; SLAC) et al.
The increase in luminosity, and consequent higher backgrounds, of the LHC upgrades require improved rejection of fake tracks in the forward region of the ATLAS Muon Spectrometer. The New Small Wheel upgrade of the Muon Spectrometer aims to reduce the large background of fake triggers from track segments that are not originated from the interaction point. [...]
arXiv:2303.12571.- 2023-05-11 - 65 p. - Published in : JINST 18 (2023) P05012 Fulltext: 2303.12571 - PDF; document - PDF; Publication - PDF;
3.
Radiation campaign of HPK prototype LGAD sensors for the High-Granularity Timing Detector (HGTD)Radiation Campaign of HPK Prototype LGAD sensors for the High-Granularity Timing Detector (HGTD) / Shi, X. (Beijing, Inst. High Energy Phys.) ; Ayoub, M.K. (Beijing, Inst. High Energy Phys.) ; da Costa, J. Barreiro Guimarães (Beijing, Inst. High Energy Phys.) ; Cui, H. (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS) ; Kiuchi, R. (Beijing, Inst. High Energy Phys.) ; Fan, Y. (Beijing, Inst. High Energy Phys.) ; Han, S. (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS) ; Huang, Y. (Beijing, Inst. High Energy Phys.) ; Jing, M. (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS) ; Liang, Z. (Beijing, Inst. High Energy Phys.) et al.
We report on the results of a radiation campaign with neutrons and protons of Low Gain Avalanche Detectors (LGAD) produced by Hamamatsu (HPK) as prototypes for the High-Granularity Timing Detector (HGTD) in ATLAS. Sensors with an active thickness of 50~$\mu$m were irradiated in steps of roughly 2$\times$ up to a fluence of $3\times10^{15}~\mathrm{n_{eq}cm^{-2}}$. [...]
arXiv:2004.13895.- 2020-11-01 - 15 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 979 (2020) 164382 Fulltext: PDF;
In : 12th international "Hiroshima" Symposium on the Development and Application of Semiconductor Tracking Detectors (HSTD), Hiroshima, Japan, 14 - 18 Dec 2019, pp.164382
4.
Beam test results of NDL Low Gain Avalanche Detectors (LGAD) / Xiao, S. (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS) ; Alderweireldt, S. (CERN) ; Ali, S. (Taiwan, Inst. Phys.) ; Allaire, C. (CERN) ; Agapopoulou, C. (Orsay, LAL) ; Atanov, N. (Dubna, JINR) ; Ayoub, M.K. (Beijing, Inst. High Energy Phys.) ; Barone, G. (Brookhaven) ; Benchekroun, D. (Casablanca U.) ; Buzatu, A. (Taiwan, Inst. Phys.) et al.
To meet the timing resolution requirement of up-coming High Luminosity LHC (HL-LHC), a new detector based on the Low-Gain Avalanche Detector(LGAD), High-Granularity Timing Detector (HGTD), is under intensive research in ATLAS. Two types of IHEP-NDL LGADs(BV60 and BV170) for this update is being developed by Institute of High Energy Physics (IHEP) of Chinese Academic of Sciences (CAS) cooperated with Novel Device Laboratory (NDL) of Beijing Normal University and they are now under detailed study. [...]
arXiv:2005.07323.- 2021-02-11 - 16 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 989 (2021) 164956 Fulltext: PDF;
In : 12th international "Hiroshima" Symposium on the Development and Application of Semiconductor Tracking Detectors (HSTD), Hiroshima, Japan, 14 - 18 Dec 2019, pp.164956
5.
Prompt data reconstruction at the ATLAS experiment / Stewart, G A (CERN) ; Boyd, J (CERN) ; da Costa, JF (DESY) ; Tuggle, J (Chicago U.) ; Unal, G (CERN) ; Boyd, Jamie (CERN) ; Firmino da Costa, Joao (DESY) ; Tuggle, Joseph (Chicago U.) ; Unal, Guillaume (CERN)
The ATLAS experiment at the LHC collider recorded more than 5~fb$^{-1}$ data of $pp$ collisions at a centre-of-mass energy of 7~TeV during 2011. [...]
ATL-SOFT-PROC-2012-062.
- 2012. - 7 p.
Original Communication (restricted to ATLAS) - Full text
6.
Prompt data reconstruction at the ATLAS experiment / Stewart, GA ; Boyd, J ; da Costa, JF ; Tuggle, J ; Unal, G
The ATLAS experiment at the LHC collider recorded more than 3 fb-1 data of pp collisions at the center of mass energy of 7 TeV by September 2011. The recorded data are promptly reconstructed in two steps at a large computing farm at CERN to provide fast access to high quality data for physics analysis. [...]
ATL-SOFT-SLIDE-2012-215.- Geneva : CERN, 2012 - 1 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
In : Computing in High Energy and Nuclear Physics 2012, New York, NY, USA, 21 - 25 May 2012
7.
The CFHT MegaCam filter, shutter and roll pitch mechanisms / Aune, S ; Boulade, O ; Charlot, X ; Abbon, P ; Borgeaud, P ; Carton, P H ; Carty, M ; Da Costa, J ; Desforge, D ; Deschamps, H et al.
DAPNIA-2002-166.
- 2002. - 12 p.
Fulltext - Fulltext
8.
Réalisation de trois cibles d'hydrogène liquide pour le GSI / Chesny, P ; Gheller, J M ; Arranger, D ; Da Costa, J ; Roussé, J Y ; Guillier, G ; Pariset, P
DAPNIA-STCM-2000-25.
- 2000. - 8 p.
Access to fulltext document - Access to fulltext document
9.
Standard Model Higgs Combined Result from CDF / Da Costa, J G
FERMILAB-CONF-2001-002-E.
- 2001.
Full text from Fermilab
10.
High-temperature effects on the velocity overshoot of hot electrons in 6H- and 3C-SiC / Bezerra de Mello, E R ; Caetano, E W S ; Da Costa, J A P
1999 - Published in : Semicond. Sci. Technol. 14 (1999) 1007

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