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2023-11-30
07:04
Energy efficiency of dynamic management of virtual cluster with heterogeneous hardware / Kommeri, Jukka (Helsinki Inst. of Phys.) ; Niemi, Tapio (CERN ; Helsinki Inst. of Phys.) ; Nurminen, Jukka K (Aalto U.)
Cloud computing is an essential part of today’s computing world. Continuously increasing amount of computation with varying resource requirements is placed in large data centers. [...]
2017 - 23 p. - Published in : J. Supercomput. 73 (2017) 1978-2000

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2023-11-30
07:04
Picosecond pulsed 532 nm laser system for roughening and secondary electron yield reduction of inner surfaces of up to 15 m long tubes / Bez, Elena (CERN ; Leipzig U.) ; Himmerlich, Marcel (CERN) ; Beaudou, Benoit (XLIM, Limoges) ; Portilla, Ana Karen Reascos (CERN) ; Wackerow, Stefan (U. Dundee) ; Rimoldi, Martino (CERN) ; Pfeiffer, Stephan (CERN) ; Wiesendanger, Markus (Zurich U.) ; Benabid, Fetah (XLIM, Limoges) ; Taborelli, Mauro (CERN) et al.
Laser-induced surface structuring is a promising method to suppress electron mulitpacting in the vacuum pipes of particle accelerators. Electrons are scattered inside the rough surface structure, resulting in a low Secondary Electron Yield (SEY) of the material. [...]
2023 - 11 p. - Published in : Rev. Sci. Instrum. 94 (2023) 103007 Fulltext: PDF;

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2023-11-30
07:04
Beam merging assisted by a bent crystal / Scandale, W (Imperial Coll., London ; INFN, Rome) ; Cerutti, F (CERN) ; Esposito, L S (CERN) ; Gilardoni, S (CERN) ; Losito, R (CERN) ; Smirnov, G I (CERN) ; Giribono, A (Frascati) ; Bauce, M (INFN, Rome) ; Collamati, F (INFN, Rome) ; Valente, P (INFN, Rome) et al.
Bunch merging is a well-established technique to increase the intensity of synchrotrons and the luminosity of circular colliders. We suggest to exploit a combination of channeling, volume reflection and amorphous interactions in a bent crystal for beam merging in a transfer line. [...]
2023 - 6 p. - Published in : Eur. Phys. J. Plus 138 (2023) 981 Fulltext: PDF;

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2023-11-30
07:04
Leveraging an open source serverless framework for high energy physics computing / Padulano, Vincenzo Eduardo (Valencia, Polytechnic U. ; CERN) ; Cortés, Pablo Oliver (Valencia, Polytechnic U.) ; Alonso‑Jordá, Pedro (Valencia, Polytechnic U.) ; Saavedra, Enric Tejedor (CERN) ; Risco, Sebastián (Valencia, Polytechnic U.) ; Moltó, Germán (Valencia, Polytechnic U.)
CERN (Centre Europeen pour la Recherce Nucleaire) is the largest research centre for high energy physics (HEP). It offers unique computational challenges as a result of the large amount of data generated by the large hadron collider. [...]
2023 - 26 p. - Published in : J. Supercomput. 79 (2023) 8940-8965 Fulltext: PDF;

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2023-11-30
07:04
The LHCb RICH upgrade for the high luminosity LHC era / Wotton, S A (Cambridge U.) /LHCb RICH Collaboration
The hadron particle identification provided by the RICH system in LHCb over a momentum range of 2.6–100 GeV/c has been a key element of the success of the experiment and will remain equally important for Upgrade II. With luminosities expected up to 7.5 times those expected for Upgrade I and 75 times those realised in the past, maintaining the current excellent particle identification performance demands a substantial improvement in the precision of the measurements of the space and time coordinates of the photons detected in the RICH. [...]
2023 - 3 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1058 (2024) 168824 Fulltext: PDF;
In : 11th International Workshop on Ring Imaging Cherenkov Detectors (RICH 2022), Edinburgh, United Kingdom, 12 - 16 Sep 2022, pp.168824

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2023-11-30
07:04
An aerogel RICH detector for the next generation heavy-ion experiment at LHC / Volpe, Giacomo (Bari U. ; INFN, Bari) /ALICE Collaboration
The ALICE collaboration is proposing a new apparatus, ALICE 3, to investigate the Quark Gluon Plasma (QGP) properties. In this context, conceptual studies for the development of a RICH detector for ALICE 3 are ongoing. [...]
2023 - 4 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1058 (2024) 168833
In : 11th International Workshop on Ring Imaging Cherenkov Detectors (RICH 2022), Edinburgh, United Kingdom, 12 - 16 Sep 2022, pp.168833

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2023-11-30
07:04
Test beam results of the fiber-sampling dual-readout calorimeter / Giaz, A (INFN, Milan ; Insubria U., Varese) ; Santoro, R (INFN, Milan ; Insubria U., Varese) ; Ampilogov, N (INFN, Milan ; Insubria U., Varese) ; Caccia, M (INFN, Milan ; Insubria U., Varese) ; Chmill, V (Boskovic Inst., Zagreb) ; Cometti, S (INFN, Milan ; Insubria U., Varese) ; Ferrari, R (INFN, Pavia) ; Gaudio, G (INFN, Pavia) ; Giacomelli, P (INFN, Bologna) ; Karadzhinova Ferrer, A (Boskovic Inst., Zagreb) et al.
The dual-readout calorimetric technique reconstructs the event-by-event electromagnetic fraction of the hadronic shower through the simultaneous measurement of scintillating (S) and Cherenkov (C) light produced by the shower development. The new generation of prototypes, based on Silicon Photomultipliers (SiPMs) readout, adds unprecedented granularity to the well-known high-energy resolution. [...]
2022

In : 15th Pisa Meeting on Advanced Detectors, La Biodola - Isola D'elba, Italy, 22 - 28 May 2022, pp.167964

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2023-11-30
07:04
A numerical study of the anisotropic distribution of γ-ray emission from oriented $^{129m,131m,133m}$Xe / Kulesz, Karolina (CERN ; Geneva U.) ; Engel, Robin Yoël (CERN ; Oldenburg U.) ; Jolivet, Renaud Blaise (Maastricht U.) ; Kowalska, Magdalena (CERN ; Geneva U.)
Spin-polarized radioactive nuclei emit radioactive decay products in an anisotropic manner that is characteristic of their degree of nuclear orientation. This property can be utilized for nuclear magnetic resonance spectroscopy and imaging. [...]
2023 - 12 p. - Published in : Meas. Sci. Technol. 35 (2024) 025027 Fulltext: PDF;

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2023-11-30
07:04
Design and characterisation of a new FoCal-E prototype for ALICE experiment / Ghimouz, Abderrahmane (Tsukuba U. (main)) /FoCal Collaboration
The FoCal-E detector is a part of the FoCal detector aiming to provide unique capabilities to measure small-x gluon distributions via prompt photon production. It represents an upgrade to the ALICE experiment, and will be installed during LS3 for data taking in 2029–2032 at the LHC. [...]
2023

In : 15th Pisa Meeting on Advanced Detectors, La Biodola - Isola D'elba, Italy, 22 - 28 May 2022, pp.167996

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2023-11-30
07:03
Antineutron Reconstruction and Identification in Electromagnetic Calorimeter / Gordeev, P (Kurchatov Inst., Moscow ; Moscow Phys. Eng. Inst.) /ALICE Collaboration
The ALICE experiment at the LHC is designed to explore the hot and dense medium produced in heavy-ion collisions, the so-called quark–gluon plasma (QGP). Antineutron production is a poorly explored domain of high energy physics, although it is interesting in the context of hadrons decaying into antineutrons, the interaction of antineutrons with hadrons, and searching for bound states of antineutrons. [...]
2023 - 5 p. - Published in : Phys. At. Nucl. 86 (2023) 827-831

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