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Performance of MicroMegas Electronics in a High-Radiation Environment
/ Kolitsi, Foteini (Unlisted, IN) ; Alexopoulos, Theo (Natl. Tech. U., Athens) ; D’Amico, Valerio (LMU Munich (main)) ; Fallavollita, Francesco (Mainz U., Inst. Phys.) ; Hertenberger, Ralf (LMU Munich (main)) ; Iakovidis, George (Brookhaven) ; Kanellos, Nikolaos (Natl. Tech. U., Athens) ; Kitsaki, Chara (Natl. Tech. U., Athens) ; Kompogiannis, Spyridon (Aristotle U., Thessaloniki) ; Kyriakis-Bitzaros, Efstathios (Unlisted, IN) et al.
To accommodate the anticipated increase in luminosity, the ATLAS experiment at CERN is currently undergoing upgrades. The instantaneous luminosity, in the coming years, is anticipated to attain 7.5×1034cm−2s−1. [...]
2023 - 4 p.
- Published in : 10.1109/MOCAST57943.2023.10176380
In : MOCAST 2023, Athens, Greece, 28 - 30 Jun 2023
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3.
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The New Small Wheel electronics
/ Iakovidis, G. (Brookhaven) ; Levinson, L. (Weizmann Inst.) ; Afik, Y. (Technion) ; Alexa, C. (Bucharest, IFIN-HH) ; Alexopoulos, T. (Natl. Tech. U., Athens) ; Ameel, J. (Michigan U.) ; Amidei, D. (Michigan U.) ; Antrim, D. (UC, Irvine ; Unlisted, US, CA) ; Badea, A. (Imperial Coll., London) ; Bakalis, C. (Brookhaven ; Natl. Tech. U., Athens ; SLAC) et al.
The increase in luminosity, and consequent higher backgrounds, of the LHC upgrades require improved rejection of fake tracks in the forward region of the ATLAS Muon Spectrometer. The New Small Wheel upgrade of the Muon Spectrometer aims to reduce the large background of fake triggers from track segments that are not originated from the interaction point. [...]
arXiv:2303.12571.-
2023-05-11 - 65 p.
- Published in : JINST 18 (2023) P05012
Fulltext: 2303.12571 - PDF; document - PDF; Publication - PDF;
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4.
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Upgraded data readout and transmission electronics for the Resistive Plate Chambers of the ATLAS Muon Trigger System for the High Luminosity LHC
/ Morodei, Federico (Sapienza Universita e INFN, Roma I (IT)) ; Corradi, Massimo (Sapienza Universita e INFN, Roma I (IT)) ; Gkountoumis, Panagiotis (CERN) ; Kyriakis-Bitzaros, Efstathios (University of West Attica (GR)) ; Longarini, Iacopo (Sapienza Universita e INFN, Roma I (IT)) ; Mesolongitis, Ioannis (University of West Attica (GR)) ; Vari, Riccardo (Sapienza Universita e INFN, Roma I (IT)) ; Zachariadou, Katerina (University of West Attica (GR))
The Muon Spectrometer of the ATLAS detector will be significantly modified during the Phase-II upgrade in order to mantain low-momentum trigger thresholds at an acceptable trigger rate also in the increased particle rates, integrated radiation and pile-up of the High Luminosity LHC runs. [...]
ATL-MUON-PROC-2021-016.
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2021. - 4 p.
Original Communication (restricted to ATLAS) - Full text
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5.
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Upgrade of the RPC detectors data collection and transmission electronics for the ATLAS experiment at High Luminosity LHC
/ Corradi, Massimo (Sapienza Universita e INFN, Roma I (IT)) ; Gkountoumis, Panagiotis (CERN) ; Kyriakis-Bitzaros, Efstathios (University of West Attica (GR)) ; Longarini, Iacopo (Sapienza Universita e INFN, Roma I (IT)) ; Mesolongitis, Ioannis (University of West Attica (GR)) ; Morodei, Federico (Sapienza Universita e INFN, Roma I (IT)) ; Vari, Riccardo (Sapienza Universita e INFN, Roma I (IT)) ; Zachariadou, Katerina (University of West Attica (GR))
Resistive Plate Chambers detector technology is used to trigger muon particles in the ATLAS Muon Spectrometer central region. [...]
ATL-MUON-PROC-2021-015.
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2021. - 6 p.
Original Communication (restricted to ATLAS) - Full text
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6.
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Micromegas in CAST and prospects
/ Abbon, P (IRFU, Saclay) ; Andriamonje, S (IRFU, Saclay) ; Aune, S (IRFU, Saclay) ; Besin, D (IRFU, Saclay) ; Cazaux, S (IRFU, Saclay) ; Dafni, T (IRFU, SPhN, Saclay) ; Decker, T (LLNL, Livermore) ; Dogan, B O (Bogazici U.) ; Duportail, N (IRFU, Saclay) ; Fanourakis, G (Democritos Nucl. Res. Ctr.) et al.
A low background Micromegas X-ray detector has been used to search for solar axions in the CAST experiment at CERN. The detector has an active area of 7cm times 7cm, excellent spatial resolution (~70nm), and good energy resolution. [...]
Oct. - 6 p.
- Published in : 10.1109/NSSMIC.2006.353827
In : Nuclear Medical Imaging Conference, San Diego, CA, USA, 29 Oct - 4 Nov 2006, pp.3832-3837
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7.
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The CERN Axion Solar Telescope
/ Hasinoff, M D (CERN ; British Columbia U.) ; Andriamonje, S (DAPNIA, Saclay) ; Arik, E (Bogazici U.) ; Autiero, D (CERN) ; Avignone, F (South Carolina U.) ; Barth, K (CERN) ; Bingol, E (Darmstadt, Tech. Hochsch.) ; Brauninger, H (Garching, Max Planck Inst., MPE) ; Brodzinski, R (PNL, Richland) ; Carmona, J (U. Zaragoza (main)) et al.
The CAST experiment at CERN is using a decommissioned LHC prototype magnet to search for solar axions through their Primakoff conversion into x-ray photons. The magnet (B = 9.0 Tesla, L = 10 m) can track the sun each day for a total exposure time of ~180 minutes (sunrise + sunset). [...]
2003 - 7 p.
- Published in : 10.1142/9789812791160_0009
In : 4th International Workshop on New Worlds in Astroparticle Physics, Faro, Portugal, 5 - 7 Sep 2002, pp.103-109
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8.
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Electroweak Measurements in Electron-Positron Collisions at W-Boson-Pair Energies at LEP
/ ALEPH Collaboration
Electroweak measurements performed with data taken at the electron-positron collider LEP at CERN from 1995 to 2000 are reported. The combined data set considered in this report corresponds to a total luminosity of about 3~fb$^{-1}$ collected by the four LEP experiments ALEPH, DELPHI, L3 and OPAL, at centre-of-mass energies ranging from $130~GeV$ to $209~GeV$ [...]
arXiv:1302.3415; CERN-PH-EP-2013-022; CERN-PH-EP-2013-022.-
Geneva : CERN, 2013 - 126 p.
- Published in : Phys. Rep. 532 (2013) 119-244
Draft (restricted): PDF; Fulltext: CERN-PH-EP-2013-022 - PDF; arXiv:1302.3415 - PDF; External link: Preprint
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Search for Charged Higgs bosons: Combined Results Using LEP data
/ ALEPH, DELPHI, L3 and OPAL Collaborations
The four LEP collaborations, ALEPH, DELPHI, L3 and OPAL, have searched for pair-produced charged Higgs bosons in the framework of Two Higgs Doublet Models (2HDMs). The data of the four experiments are statistically combined. [...]
arXiv:1301.6065; CERN-PH-EP-2012-369; CERN-PH-EP-2012-369; LHWG-Note-2012-01; ALEPH-2012-001-PHYSICS-2012-001; DELPHI-2012-001-PHYS-953; L3-Note-2835; OPAL-PR433.-
Geneva : CERN, 2013 - 18 p.
- Published in : Eur. Phys. J. C 73 (2013) 2463
Draft (restricted): PDF; Fulltext: CERN-PH-EP-2012-369 - PDF; arXiv:1301.6065 - PDF; External link: Preprint
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10.
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Search for neutral Higgs bosons decaying into four taus at LEP2
/ ALEPH Collaboration
A search for the production and non-standard decay of a Higgs boson, h, into four taus through intermediate pseudoscalars, a, is conducted on 683 pb-1 of data collected by the ALEPH experiment at centre-of-mass energies from 183 to 209 GeV. No excess of events above background is observed, and exclusion limits are placed on the combined production cross section times branching ratio, \xi^2 = \sigma(e+e- --> Zh)/\sigma_{SM}(e+e- --> Zh) x B(h --> aa)x B(a --> \tau^+\tau^-)^2. [...]
arXiv:1003.0705; CERN-PH-EP-2010-005.-
2010 - 18 p.
ALEPH Papers
- Published in : JHEP 05 (2010) 049
Fulltext: arXiv:1003.0705 - PDF; cern-ph-ep-2010-005 - PDF; Springer Open Access article: PDF; External link: Preprint
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