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Performance of thin-RPC detectors for high rate applications with eco-friendly gas mixtures
/ RPC ECOGas@GIF++ Collaboration
In the last few years, an intense R &D; activity on particle detectors for future HEP applications has been carried on with the aim of developing new techniques as well as studying the performance of already existing detectors when operated in a high rate environment. As for Resistive Plate Chamber detectors, the main challenges to face are the improvement of their detection capabilities and longevity at very high-rates, and the search for new eco-friendly gasmixtures free from greenhouse components. [...]
2024 - 11 p.
- Published in : Eur. Phys. J. C 84 (2024) 605
Fulltext: PDF;
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Exploring Eco-Friendly Gas Mixtures for Resistive Plate Chambers: A Comprehensive Study on Performance and Aging
/ RPC ECOGas@GIF++ Collaboration
Resistive Plate Chambers (RPCs) are gaseous detectors widely used in high energy physics experiments, operating with a gas mixture primarily containing Tetrafluoroethane (C$_{2}$H$_{2}$F$_{4}$), commonly known as R-134a, which has a global warming potential (GWP) of 1430. To comply with European regulations and explore environmentally friendly alternatives, the RPC EcoGas@GIF++ collaboration, involving ALICE, ATLAS, CMS, LHCb/SHiP, and EP-DT communities, has undertaken intensive R&D; efforts to explore new gas mixtures for RPC technology. [...]
arXiv:2402.19395.-
2024-08-22 - 5 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 1068 (2024) 169747
Fulltext: Publication - PDF; 2402.19395 - PDF;
In : 3rd International Conference on Detector Stability and Aging Phenomena in Gaseous Detectors, CERN, Geneva, Switzerland, 6 - 10 Nov 2023, pp.169747
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4.
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5.
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High-rate tests on Resistive Plate Chambers operated with eco-friendly gas mixtures
/ RPC ECOGas@GIF++ Collaboration
Results obtained by the RPC ECOgas@GIF++ Collaboration, using Resistive Plate Chambers operated with new, eco-friendly gas mixtures, based on Tetrafluoropropene and carbon dioxide, are shown and discussed in this paper. Tests aimed to assess the performance of this kind of detectors in high-irradiation conditions, analogous to the ones foreseen for the coming years at the Large Hadron Collider experiments, were performed, and demonstrate a performance basically similar to the one obtained with the gas mixtures currently in use, based on Tetrafluoroethane, which is being progressively phased out for its possible contribution to the greenhouse effect. [...]
arXiv:2311.08259.-
2024-03-22 - 15 p.
- Published in : Eur. Phys. J. C 84 (2024) 300
Fulltext: 2311.08259 - PDF; document - PDF;
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6.
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Measurement of the neutron capture and fission reactions of plutonium-241 at the n_TOF experimental area 1 (EAR1)
/ Dupont, Emmeric (CEA Irfu, Université Paris-Saclay, Gif-sur-Yvette, France) ; Heyse, Jan (European Commission, Joint Research Centre (JRC), Geel, Belgium) ; Bacak, Michael (European Organization for Nuclear Research (CERN), Switzerland) ; Bélier, Gilbert (CEA DAM, Service de Physique Nucléaire, Bruyères le Châtel, France) ; Bernard, David (CEA DES, Service de Physique des Réacteurs et du Cycle, Cadarache, France) ; Berthoumieux, Eric (CEA Irfu, Université Paris-Saclay, Gif-sur-Yvette, France) ; Cahuzac, Aline (CEA Irfu, Université Paris-Saclay, Gif-sur-Yvette, France) ; Diakaki, Maria (NTUA, National Technical University of Athens, Greece) ; Gunsing, Frank (CEA Irfu, Université Paris-Saclay, Gif-sur-Yvette, France) ; Karpinska, Jolanta (European Commission, Joint Research Centre (JRC), Geel, Belgium) et al.
CERN-INTC-2023-066 ; INTC-P-677.
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2023.
Fulltext
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Gauge $SU(2)_f$ flavour transfers
/ Darmé, Luc (IP2I, Lyon) ; Deandrea, Aldo (IP2I, Lyon ; Johannesburg U.) ; Mahmoudi, Farvah (IP2I, Lyon ; CERN)
We introduce the idea of flavour transfer from a non-abelian horizontal $SU(2)_f$ flavour gauge group embedded in the Standard Model flavour structure. The new flavour vector bosons, in the mass range from the tens of GeV to multi-TeV do not induce large flavour-changing currents and meson oscillations, which usually provide the dominant constraints on this type of structure. [...]
arXiv:2307.09595; CERN-TH-2023-139.-
2024-05-28 - 50 p.
- Published in : JHEP 2405 (2024) 313
Fulltext: document - PDF; 2307.09595 - PDF;
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Search for Darkonium in $e^+e^-$ Collisions
/ BABAR Collaboration
Collider searches for dark sectors, new particles interacting only feebly with ordinary matter, have largely focused on identifying signatures of new mediators, leaving much of dark sector structures unexplored. In particular, the existence of dark matter bound states (darkonia) remains to be investigated. [...]
arXiv:2106.08529; BABAR-PUB-21/002; SLAC-PUB-17608.-
2022-01-11 - 10 p.
- Published in : Phys. Rev. Lett. 128 (2022) 021802
Fulltext: PDF;
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Geant4 electromagnetic physics progress
/ Ivanchenko, Vladimir (CERN ; Tomsk State U.) ; Bagulya, Alexander (Lebedev Inst.) ; Bakr, Samer (Wollongong U.) ; Bandieramonte, Marilena (CERN ; U. Pittsburgh (main)) ; Bernard, Denis (Ecole Polytechnique) ; Bordage, Marie-Claude (CRCT, Toulouse) ; Burkhardt, Helmut (CERN) ; Dondero, Paolo (Columbus Supercond., Genova) ; Grichine, Vladimir (Lebedev Inst.) ; Guatelli, Susanna (Wollongong U.) et al.
The Geant4 electromagnetic (EM) physics sub-packages are a component of LHC experiment simulations. During long shutdown 2 for LHC, these packages are under intensive development and we report progress of EM physics in Geant4 versions 10.5 and 10.6, which includes faster computation, more accurate EM models, and extensions to the validation suite. [...]
2020 - 6 p.
- Published in : EPJ Web Conf. 245 (2020) 02009
Fulltext: PDF;
In : 24th International Conference on Computing in High Energy and Nuclear Physics, Adelaide, Australia, 4 - 8 Nov 2019, pp.02009
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