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CERN Document Server 2,049 notices trouvées  1 - 10suivantfin  aller vers la notice: La recherche a duré 1.30 secondes. 
1.
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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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In-beam performance of a Resistive Plate Chamber operated with eco-friendly gas mixtures / ALICE Collaboration
ALICE (A Large Ion Collider Experiment) studies the Quark-Gluon Plasma (QGP): a deconfined state of matter obtained in ultra-relativistic heavy-ion collisions. One of the probes for QGP study are quarkonia and open heavy flavour, of which ALICE exploits the muonic decay. [...]
arXiv:2402.19408.- 2024-08-02 - 5 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1067 (2024) 169672 Fulltext: Publication - PDF; 2402.19408 - PDF;
In : PSD13: The 13th International Conference on Position Sensitive Detectors, Oxford, United Kingdom, 3 - 9 Sep 2023, pp.169672
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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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Studies on tetrafluoropropene-CO$_{2}$ based gas mixtures for the resistive plate chambers of the ALICE Muon IDentifier / ALICE Collaboration
Due to their simplicity and comparatively low cost Resistive Plate Chambers are gaseous detectors widely used in high-energy and cosmic rays physics when large detection areas are needed. However, the best gaseous mixtures are currently based on tetrafluoroethane, which has the undesirable characteristic of a large Global Warming Potential (GWP) of about 1400 and because of this, it is currently being phased out from industrial use. [...]
arXiv:2112.08899.- 2022-08-25 - 7 p.
- Published in : JINST Fulltext: PDF;
In : 12th International Conference on Positional Sensitive Detectors, Online, Online, 12 - 17 Sep 2021, pp.C08024
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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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Preliminary results on the long term operation of RPCs with eco-friendly gas mixtures under irradiation at the CERN Gamma Irradiation Facility / RPC ECOgas@GIF++ Collaboration
Since 2019 a collaboration between researchers from various institutes and experiments (i.e. [...]
arXiv:2311.17574. - 26 p.
Fulltext
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Dark Matter searches using gravitational wave bar detectors: quark nuggets and newtorites / ROG collaboration
Many experiments have searched for supersymmetric WIMP dark matter, with null results. This may suggest to look for more exotic possibilities, for example compact ultra-dense quark nuggets, widely discussed in literature with several different names. [...]
arXiv:1512.06249.- 2016 - Published in : Astropart. Phys. 78 (2016) 52-64 External link: Preprint
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The NA62 Liquid Krypton Electromagnetic Calorimeter Level 0 Trigger / Fucci, Adolfo (INFN, Rome2) ; Paoluzzi, Giovanni (INFN, Rome2) ; Salamon, Andrea (INFN, Rome2) ; Salina, Gaetano (INFN, Rome2) ; Santovetti, Emanuele (Rome U., Tor Vergata) ; Scarfi, Francesco M. (Rome U., Tor Vergata) ; Bonaiuto, Vincenzo (Rome U., Tor Vergata) ; Sargeni, Fausto (Rome U., Tor Vergata)
The NA62 experiment at CERN SPS aims to measure the Branching Ratio of the very rare kaon decay K+ -> pi+ nu nubar collecting O(100) events with a 10% background to make a stringent test of the Standard Model. One of the main backgrounds to the proposed measurement is represented by the K+ -> pi+ pi0 decay. [...]
arXiv:1201.3147.- 2012 - 5 p. - Published in : 10.1142/9789814405072_0077 Fulltext: PDF; External link: Preprint
In : 13th ICATPP Conference on Astroparticle, Particle, Space Physics and Detectors for Physics Applications, Como, Italy, 3 - 7 Oct 2011
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Studies on environment-friendly gas mixtures for the Resistive Plate Chambers of the ALICE Muon Identifier / ALICE Collaboration
Due to their simplicity and comparatively low cost, Resistive Plate Chambers are gaseous detectors widely used in high-energy and cosmic rays physics, when large detection areas are needed. [...]
arXiv:2202.13968. - 15 p.
Fulltext
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Strange and charm quark contributions to the muon anomalous magnetic moment in lattice QCD with twisted-mass fermions / Extended Twisted Mass Collaboration (ETMC) Collaboration
We present a lattice calculation of the Hadronic Vacuum Polarization (HVP) contribution of the strange and charm quarks to the anomalous magnetic moment of the muon in isospin symmetric QCD. [...]
CERN-TH-2024-197 ; arXiv:2411.08852. - 33.
Fulltext
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