CERN Accelerating science

Published Articles

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2019-11-15
06:29
Conceptual Design of the FCC-hh Dipole Circuits With Integrated CLIQ Protection System / Prioli, Marco (CERN ; INFN, Milan) ; Auchmann, Bernhard (CERN ; PSI, Villigen) ; Bortot, Lorenzo (CERN) ; Maciejewski, Michał (CERN ; Lodz U. Tech. (main)) ; Salmi, Tiina (Tampere U. of Tech.) ; Verweij, Arjan (CERN)
The Future Circular Collider (FCC-hh) project is a conceptual study whose goal is to design the successor of the Large Hadron Collider, increasing the collision energy from 14 to 100 TeV. The energy stored in the 16-T superconducting dipole magnets and the length of the sectors composing the 100-km FCC tunnel are considerably larger than those in present accelerators. [...]
2019 - 9 p. - Published in : IEEE Trans. Appl. Supercond. 29 (2019) 4703309

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2019-11-15
06:29
The CLIQ Quench Protection System Applied to the 16 T FCC-hh Dipole Magnets / Prioli, Marco (CERN ; INFN, Milan) ; Salmi, Tiina (Tampere U. of Tech.) ; Auchmann, Bernhard (CERN ; PSI, Villigen) ; Bortot, Lorenzo (CERN) ; Maciejewski, Michal (CERN ; Lodz U. Tech. (main)) ; Verweij, Arjan (CERN) ; Caiffi, Barbara (INFN, Genoa) ; Farinon, Stefania (INFN, Genoa) ; Lorin, Clement (Saclay) ; Segreti, Michel (Saclay) et al.
Part of the Future Circular Collider (FCC-hh) study is dedicated to the development of the 16 Tesla ${\rm Nb_3Sn}$superconducting dipole magnets. The design of the magnets was enabled by a cooperative effort of national research institutes, universities, and CERN. [...]
2019 - 9 p. - Published in : IEEE Trans. Appl. Supercond. 29 (2019) 4703209

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2019-11-15
06:29
An MgB- Superconducting Shield Prototype for the Future Circular Collider Septum Magnet / Barna, Daniel (Wigner RCP, Budapest ; CERN) ; Giunchi, Giovanni (Edison SpA, Milan) ; Novák, Martin (Wigner RCP, Budapest) ; Brunner, Kristof (Wigner RCP, Budapest) ; Német, Aniko (Wigner RCP, Budapest) ; Petrone, Carlo (CERN) ; Atanasov, Miroslav (CERN) ; Bajas, Hugues (CERN) ; Feuvrier, Jerome (CERN)
A passive superconducting shield was previously proposed to realize a high-field (above 3 T) septum magnet for the Future Circular Collider proton–proton ring (FCC-hh). This paper presents the experimental results of a potential shield material, MgB$_2$, at a temperature of 4.2 K. [...]
2019 - 10 p. - Published in : IEEE Trans. Appl. Supercond. 29 (2019) 4101310

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2019-11-15
06:29
Operational security, threat intelligence & distributed computing: the WLCG Security Operations Center Working Group / Crooks, David (Rutherford) ; Vâlsan, Liviu (CERN) ; Mohammad, Kashif (U. Oxford (main)) ; McKee, Shawn (Michigan U.) ; Clark, Paul (Durham U., IPPP) ; Boutcher, Adam (Durham U., IPPP) ; Padée, Adam (NCBJ, Swierk) ; Wójcik, Michał (NCBJ, Swierk) ; Giemza, Henryk (NCBJ, Swierk) ; Kreukniet, Bas (Unlisted, NL) /WLCG Security Operations Center Working Group
The modern security landscape for distributed computing in High Energy Physics (HEP) includes a wide range of threats employing different attack vectors. The nature of these threats is such that the most effective method for dealing with them is to work collaboratively, both within the HEP community and with partners further afield - these can, and should, include institutional and campus security teams. [...]
2019 - 8 p. - Published in : EPJ Web Conf. 214 (2019) 03029 Fulltext from publisher: PDF;
In : 23rd International Conference on Computing in High Energy and Nuclear Physics, CHEP 2018, Sofia, Bulgaria, 9 - 13 Jul 2018, pp.03029

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2019-11-15
06:29
A simulation tool for ALICE storage and computing resource usage / Abramyan, Armenuhi (Yerevan Phys. Inst.) ; Manukyan, Narine (Yerevan Phys. Inst. ; CERN) ; Hallyburton, Tim (CERN) ; Betev, Latchezar (CERN) ; Buncic, Predrag (CERN) ; Grigoryan, Ara (Yerevan Phys. Inst.)
The LHC experiments produce many tens of petabytes of data each year, which must be stored, processed and analyzed. The CPU and storage resources required for these activities are planned for and requested on yearly basis. [...]
2019 - 7 p. - Published in : EPJ Web Conf. 214 (2019) 03017 Fulltext from publisher: PDF;
In : 23rd International Conference on Computing in High Energy and Nuclear Physics, CHEP 2018, Sofia, Bulgaria, 9 - 13 Jul 2018, pp.03017

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2019-11-15
06:29
Extending CERN computing to volunteers - LHC@home consolidation and outlook / Cameron, David (Oslo U.) ; Field, Laurence (CERN) ; Giannakis, Nikolas (U. Patras (main)) ; Høimyr, Nils (CERN)
LHC@home has provided computing capacity for simulations under BOINC since 2005. Following the introduction of virtualisation with BOINC to run HEP Linux software in a virtual machine on volunteer desktops, initially started on test BOINC projects, like Test4Theory and ATLAS@home, all CERN applications distributed to volunteers have been consolidated under a single LHC@home BOINC project. [...]
2019 - 8 p. - Published in : EPJ Web Conf. 214 (2019) 03016 Fulltext from publisher: PDF;
In : 23rd International Conference on Computing in High Energy and Nuclear Physics, CHEP 2018, Sofia, Bulgaria, 9 - 13 Jul 2018, pp.03016

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2019-11-15
06:29
LHCb and DIRAC strategy towards the LHCb upgrade / Stagni, Federico (CERN) ; Tsaregorodtsev, Andrei (Marseille, CPPM) ; Haen, Christophe (CERN) ; Charpentier, Philippe (CERN) ; Mathe, Zoltan (CERN) ; Krzemien, Wojciech Jan (NCBJ, Swierk) ; Romanovskiy, Vladimir (Serpukhov, IHEP) /LHCb
The DIRAC project is developing interware to build and operate distributed computing systems. It provides a development framework and a rich set of services for both Workload and Data Management tasks of large scientific communities. [...]
2019 - 8 p. - Published in : EPJ Web Conf. 214 (2019) 03012 Fulltext from publisher: PDF;
In : 23rd International Conference on Computing in High Energy and Nuclear Physics, CHEP 2018, Sofia, Bulgaria, 9 - 13 Jul 2018, pp.03012

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2019-11-15
06:29
CRIC: a unified information system for WLCG and beyond / Anisenkov, Alexey (Novosibirsk, IYF ; Novosibirsk State U.) ; Andreeva, Julia (CERN) ; Di Girolamo, Alessandro (CERN) ; Paparrigopoulos, Panos (CERN) ; Vedaee, Aresh (PIC, Bellaterra)
The Worldwide LHC Computing Grid (WLCG) is an innovative distributed environment which is deployed through the use of grid computing technologies in order to provide computing and storage resources to the LHC experiments for data processing and physics analysis. Following increasing demands of LHC computing needs toward high luminosity era, the experiments are engaged in an ambitious program to extend the capability of WLCG distributed environment, for instance including opportunistically used resources such as High-Performance Computers (HPCs), cloud platforms and volunteer computers. [...]
2019 - 8 p. - Published in : EPJ Web Conf. 214 (2019) 03003 Fulltext from publisher: PDF;
In : 23rd International Conference on Computing in High Energy and Nuclear Physics, CHEP 2018, Sofia, Bulgaria, 9 - 13 Jul 2018, pp.03003

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2019-11-15
06:29
Exploring GlideinWMS and HTCondor scalability frontiers for an expanding CMS Global Pool / Pérez-Calero Yzquierdo, Antonio (Madrid, CIEMAT ; PIC, Bellaterra) ; Bockelman, Brian Paul (U. Nebraska, Lincoln) ; Davila Foyo, Diego (Puebla U., Mexico) ; Hurtado Anampa, Kenyi (U. Notre Dame (main)) ; Ivanov, Todor Trendafilov (Sofia U. (main)) ; Khan, Farrukh Aftab (Fermilab) ; Kotobi, Amjad (Malaya U.) ; Larson, Krista (Fermilab) ; Letts, James (UC, San Diego) ; Mascheroni, Marco (UC, San Diego) et al. /CMS
The CMS Submission Infrastructure Global Pool, built on GlideinWMS and HTCondor, is a worldwide distributed dynamic pool responsible forthe allocation of resources for all CMS computing workloads. Matching the continuously increasing demand for computing resources by CMS requires the anticipated assessment of its scalability limitations. [...]
FERMILAB-CONF-19-553-SCD.- 2019 - 8 p. - Published in : EPJ Web Conf. 214 (2019) 03002 Fulltext from publisher: PDF;
In : 23rd International Conference on Computing in High Energy and Nuclear Physics, CHEP 2018, Sofia, Bulgaria, 9 - 13 Jul 2018, pp.03002

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2019-11-15
06:29
Progress of Geant4 electromagnetic physics developments and applications / Ivanchenko, Vladimir (Tomsk State U. ; CERN) ; Bagulya, Alexander (LPI, Moscow (main)) ; Bakr, Samer (Wollongong U.) ; Bandieramonte, Marilena (CERN ; U. Pittsburgh (main)) ; Bernard, Denis (Ecole Polytechnique) ; Bordage, Marie-Claude (CRCT, Toulouse) ; Brown, Jeremy (Delft Tech. U.) ; Burkhardt, Helmut (CERN) ; Dondero, Paolo (Unlisted, IT) ; Elles, Sabine (Annecy, LAPP) et al. /Geant4
We report on developments of the Geant4 electromagnetic physics sub-libraries of Geant4 release 10.4 and beyond. Modifications are introduced to the models of photoelectric effect, bremsstrahlung, gammaconversion, single and multiple scattering. [...]
2019 - 8 p. - Published in : EPJ Web Conf. 214 (2019) 02046 Fulltext from publisher: PDF;
In : 23rd International Conference on Computing in High Energy and Nuclear Physics, CHEP 2018, Sofia, Bulgaria, 9 - 13 Jul 2018, pp.02046

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