# ALICE Conference Contributions

Derniers ajouts:
2019-11-16
09:33
 A scalable and asynchronous detector simulation system based on ALFA / Wenzel, Sandro (CERN) /ALICE In the context of the common online-offline computing infrastructure for Run3 (ALICE-O2), ALICE is reorganizing its detector simulation software to be based on FairRoot, offering a common toolkit to implement simulation based on the Virtual-Monte-Carlo (VMC) scheme. Recently, FairRoot has been augmented by ALFA, a software framework developed in collaboration between ALICE and FAIR, offering portable building blocks to construct message-based and loosely-coupled multiprocessing systems. [...] 2019 - 8 p. - Published in : EPJ Web Conf. 214 (2019) 02029 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.02029

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

2019-11-14
06:14
 Towards the integrated ALICE Online-Offline (O$^2$) monitoring subsystem / Chibante Barroso, Vasco (CERN) ; Elia, Domenico (INFN, Bari) ; Grigoras, Costin (CERN) ; Gomez Ramirez, Andres (Goethe U., Frankfurt (main)) ; Vino, Gioacchino (INFN, Bari) ; Wegrzynek, Adam (CERN) ALICE (A Large Ion Collider Experiment) is preparing for a major upgrade of the detector, readout and computing systemsfor LHC Run 3. A new facility called O$^2$ (Online-Offline) will play a major role in data compression and event processing. [...] 2019 - 8 p. - Published in : EPJ Web Conf. 214 (2019) 03043 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.03043

2019-11-14
06:14
 The security model of the ALICE next generation Grid framework / Martinez Pedreira, Miguel (CERN) ; Grigoras, Costin (CERN) ; Yurchenko, Volodymyr (Natl. Acad. of Sci. of Ukraine) ; Melnik Storetvedt, Maksim (HVL, Norway) JAliEn (Java-AliEn) is the ALICE next generation Grid framework which will be used for the top-level distributed computing resources management during the LHC Run 3 and onward. While preserving an interface familiar to the ALICE users, its performance and scalability are an order of magnitude better than the currently used framework. [...] 2019 - 5 p. - Published in : EPJ Web Conf. 214 (2019) 03042 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.03042

2019-11-14
06:14
 JAliEn: the new ALICE high-performance and high-scalability Grid framework / Martinez Pedreira, M (CERN) ; Grigoras, C (CERN) ; Yurchenko, V (CERN) The ALICE experiment will undergo extensive hardware and software upgrades for the LHC Run3. This translates in significant increase of the CPU and storage resources required for data processing, and at the same time the data access rates will grow linearly with the amount of resources. [...] 2019 - 8 p. - Published in : EPJ Web Conf. 214 (2019) 03037 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.03037

2019-11-12
06:10
 Performance of the ALICE charged-particle veto detector in Pb-Pb and pp collisions at the LHC / Kondratyuk, Evgeny (Serpukhov, IHEP) /ALICE The charged-particle veto (CPV) detector of the ALICE experiment is a multi-wire proportional chamber with pad readout. It is designed to improve photon identification in the photon spectrometer PHOS. [...] 2019 - 6 p. - Published in : AIP Conf. Proc. 2163 (2019) 030007 In : The XXIII International Scientific Conference of Young Scientists and Specialists, Dubna, Russia, 15 - 19 Apr 2019, pp.030007

2019-11-12
06:10
 Evolution of the ALICE software framework for Run 3 / Eulisse, Giulio (CERN) ; Konopka, Piotr (AGH-UST, Cracow ; CERN) ; Krzewicki, Mikolaj (Frankfurt U., FIAS ; Goethe U., Frankfurt (main)) ; Richter, Matthias (U. Oslo (main)) ; Rohr, David (CERN) ; Wenzel, Sandro (CERN) ALICE is one of the four major LHC experiments at CERN. When the accelerator enters the Run 3 data-taking period, starting in 2021, ALICE expects almost 100 times more Pb-Pb central collisions than now, resulting in a large increase of data throughput. [...] 2019 - 7 p. - Published in : EPJ Web Conf. 214 (2019) 05010 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.05010

2019-11-09
06:01
 The ALICE analysis framework for LHC Run 3 / Berzano, Dario (CERN ; INFN, Italy) ; Deckers, Roel (CERN) ; Grigoras, Costin (CERN) ; Floris, Michele (CERN) ; Hristov, Peter (CERN) ; Krzewicki, Mikolaj (CERN ; Frankfurt U., FIAS ; Goethe U., Frankfurt (main)) ; Zimmermann, Markus (CERN) The ALICE experiment at the LHC (CERN) is currently developing a new software framework designed for Run 3: detector and software will have to cope with Pb–Pb collision rates 100 times higher than today, leading to the combination of core Online-Offline operations into a single framework called O$^2$. The analysis code is expected to run on a few large Analysis Facilities counting 20k cores and sustainin ga 100 GB/s throughput: this requires a conjoint effort between the definition of the data format, the configuration of the Analysis Facilities and the development of the Analysis Framework. [...] 2019 - 9 p. - Published in : EPJ Web Conf. 214 (2019) 05045 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.05045

2019-11-09
06:01
 Software training for the next generation of physicists: joint experience of LHCb and ALICE / Berzano, Dario (CERN ; INFN, Italy) ; Burr, Chris (U. Manchester (main)) ; Beck, Hans (Unlisted, DE) ; Bellée, Violaine (Ecole Polytechnique, Lausanne) ; Bertens, Redmer Alexander (U. Tennessee, Knoxville) ; Puig Navarro, Albert (U. Zurich (main)) The need for good software training is essential in the HEP community. Unfortunately, current training is non-homogeneous and the definition of a common baseline is unclear, making it difficult for newcomers to proficiently join large collaborations such as ALICE or LHCb. [...] 2019 - 9 p. - Published in : EPJ Web Conf. 214 (2019) 05044 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.05044

2019-11-08
04:03
 Particle production as a function of system size and underlying-event activity measured with ALICE at the LHC / Krüger, Mario (Frankfurt U., Inst. Kernphys.) High-energy collisions in ALICE allow for the study of soft and hard QCD particle production. [...] arXiv:1910.08969. - 6 p. Fulltext