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### Measurement of j/ production in pbpb and pp collisions at the lhc with the alice experiment

Gagliardi, Martino
Journal of Physics: Conference Series, 2013, Vol.420(1), p.012033 (9pp) [Peer Reviewed Journal]
IOPscience (IOP Publishing)
Available
Title: Measurement of j/ production in pbpb and pp collisions at the lhc with the alice experiment
Author: Gagliardi, Martino
Subject: Channels ; Particle Accelerators ; Large Hadron Collider ; Atomic Collisions ; Nuclear Matter ; Collisions ; Plasma (Physics) ; Lead (Metal) ; Atomic and Molecular Physics (General) (So) ; Physics of Metals (MD) ; Physics (General) (Ah);
Description: ALICE (A Large Ion Collider Experiment) aims to study the behaviour of nuclear matter at high energy densities and the transition to Quark Gluon Plasma (QGP), expected to occur in relativistic heavy ion collisions. Quarkonia are important probes of nuclear matter and QGP, through the modification of their yield in the hot and dense medium formed in heavy ion collisions. Their measurement in pp collisions is also crucial to the ALICE physics program. ALICE measures quarkonium production at both forward (in the dimuon channel) and mid-rapidity (in the dielectron channel). In 2010 and 2011 the Large Hadron Collider has provided pp collisions at TeV and 2.76 TeV and Pb-Pb collisions at TeV. The ALICE results on J/ production in both Pb-Pb and pp collisions are presented.
Is part of: Journal of Physics: Conference Series, 2013, Vol.420(1), p.012033 (9pp)
Identifier: 1742-6588 (ISSN); 1742-6596 (E-ISSN); 10.1088/1742-6596/420/1/012033 (DOI)
• Several versions

### Measurement of reference cross sections in pp and Pb-Pb collisions at the LHC in van der Meer scans with the ALICE detector

Gagliardi, Martino
arXiv.org, Sep 25, 2011 [Peer Reviewed Journal]

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### Performance of the RPC-based ALICE muon trigger system at the LHC

Bossù, Francesco, Gagliardi, Martino, Marchisone, Massimiliano, Collaboration, Alice
Cornell University
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Title: Performance of the RPC-based ALICE muon trigger system at the LHC
Author: Bossù, Francesco; Gagliardi, Martino; Marchisone, Massimiliano; Collaboration, Alice
Subject: Physics - Instrumentation And Detectors ; High Energy Physics - Experiment ; Nuclear Experiment
Description: The forward muon spectrometer of ALICE (A Large Ion Collider Experiment) is equipped with a trigger system made of four planes of Resistive Plate Chambers (RPC), arranged in two stations with two planes each, for a total area of about 140 m2 . The system provides single and di-muon triggers with suitable transverse momentum selection, optimised for the physics of quarkonia and open heavy flavour. In the first two years of data-taking at the Large Hadron Collider (2010 and 2011) the 72 RPCs were operated in highly saturated avalanche mode in both pp and Pb-Pb collisions. The integrated charge was about 1.3 mC/cm2 on average and 3.5 mC/cm2 for the most exposed detectors. This paper describes two main results. The first result is the determination of the RPC performance, with particular focus on the stability of the main detector parameters such as efficiency, dark current, and dark rate. The second result is the measurement of the muon trigger performance in Pb-Pb collisions at sqrt(s_NN) = 2.76 TeV, in terms of the reliability and stability of the trigger decision logic. Comment: 11 pages, 9 figures. To appear on JINST Special Issue for the XI Workshop on Resistive Plate Chambers and Related Detectors, INFN Laboratori Nazionali Frascati,February 5th-10th, Frascati (Italy)
Identifier: 1211.1948 (ARXIV ID)
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### Performance of the RPC-based ALICE muon trigger system at the LHC

Bossù, Francesco, Gagliardi, Martino, Marchisone, Massimiliano, Collaboration, Alice
arXiv.org, Nov 8, 2012
© ProQuest LLC All rights reserved, Engineering Database, Publicly Available Content Database, ProQuest Engineering Collection, ProQuest Technology Collection, ProQuest SciTech Collection, Materials Science & Engineering Database, ProQuest Central (new), ProQuest Central Korea, SciTech Premium Collection, Technology Collection, ProQuest Central Essentials, ProQuest One Academic, Engineering Collection (ProQuest)
Available
Title: Performance of the RPC-based ALICE muon trigger system at the LHC
Author: Bossù, Francesco; Gagliardi, Martino; Marchisone, Massimiliano; Collaboration, Alice
Contributor: Collaboration, Alice (pacrepositoryorg)
Subject: Collisions ; Stability ; Large Hadron Collider ; Dark Current ; Transverse Momentum ; Resistive Plate Chambers ; Planes ; Muons ; Avalanches
Description: The forward muon spectrometer of ALICE (A Large Ion Collider Experiment) is equipped with a trigger system made of four planes of Resistive Plate Chambers (RPC), arranged in two stations with two planes each, for a total area of about 140 m2 . The system provides single and di-muon triggers with suitable transverse momentum selection, optimised for the physics of quarkonia and open heavy flavour. In the first two years of data-taking at the Large Hadron Collider (2010 and 2011) the 72 RPCs were operated in highly saturated avalanche mode in both pp and Pb-Pb collisions. The integrated charge was about 1.3 mC/cm2 on average and 3.5 mC/cm2 for the most exposed detectors. This paper describes two main results. The first result is the determination of the RPC performance, with particular focus on the stability of the main detector parameters such as efficiency, dark current, and dark rate. The second result is the measurement of the muon trigger performance in Pb-Pb collisions at sqrt(s_NN)...
Is part of: arXiv.org, Nov 8, 2012
Identifier: 2331-8422 (E-ISSN)
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### Electron collision cross sections in tetrafluoropropene HFO1234ze

Bianchi, Antonio, Ferretti, Alessandro, Gagliardi, Martino, Vercellin, Ermanno
Cornell University
Available
Title: Electron collision cross sections in tetrafluoropropene HFO1234ze
Author: Bianchi, Antonio; Ferretti, Alessandro; Gagliardi, Martino; Vercellin, Ermanno
Subject: Physics - Plasma Physics ; High Energy Physics - Experiment
Description: In the recent years, the hydrofluoroolefine HFO1234ze(E) (C3H2F4) has been subject to a growing interest for refrigerant applications. This novel gas is also considered a promising alternative in gaseous particle detectors and gaseous voltage insulation devices, thanks to its low global warming potential. In this contribution, measurements of electron transport coefficients and reaction rates in C3H2F4 are analyzed by an iterative procedure. A complete set of scattering cross sections for electrons in C3H2F4 has been obtained and validated by a systematic comparison of electron swarm parameters with experimental measurements in pure C3H2F4 as well as in gas mixtures of C3H2F4/CO2. Since the electron attachment of C3H2F4 is strongly influenced by the gas density, accurate calculations of the critical electric field strength in such mixtures are also reported in this paper.
Identifier: 2103.08643 (ARXIV ID)
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### Performance and aging studies for the ALICE muon RPCs

Quaglia, Luca, Bianchi, Antonio, Ferretti, Alessandro, Gagliardi, Martino, Stocco, Diego, Guida, Roberto, Mandelli, Beatrice, Alvigini, Laura
Cornell University
Available
Title: Performance and aging studies for the ALICE muon RPCs
Author: Quaglia, Luca; Bianchi, Antonio; Ferretti, Alessandro; Gagliardi, Martino; Stocco, Diego; Guida, Roberto; Mandelli, Beatrice; Alvigini, Laura
Subject: Physics - Instrumentation And Detectors ; High Energy Physics - Experiment
Description: The ALICE muon trigger (MTR) system consists of 72 Resistive Plate Chamber (RPC) detectors arranged in two stations, each composed of two planes with 18 RPCs per plane. The detectors are operated in maxi-avalanche mode using a mixture of 89.7% C$_2$H$_2$F$_4$, 10% i-C$_4$H$_{10}$ and 0.3% SF$_6$. A number of detector performance indicators, such as efficiency and dark current, have been monitored over time throughout the LHC Run2 (2015-18). While the efficiency showed very good stability, a steady increase in the absorbed dark current was observed. Since the end of 2018, the LHC has entered a phase of long shutdown, during which the ALICE experiment will be upgraded to cope with the next phase of data taking, expected in 2021. The MTR is undergoing a major upgrade of the front-end and readout electronics, and will change its functionalities, becoming a Muon Identifier. Only the replacement of the most irradiated RPCs is planned during the upgrade. It is therefore important to perform... Comment: Proceedings of the 15th Workshop on Resistive Plate Chambers and Related Detectors (RPC2020), 10-14 February 2020, University of Roma Tor Vergata, Italy
Identifier: 2005.00286 (ARXIV ID)
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### Performance and aging studies for the ALICE muon RPCs

Quaglia, Luca, Bianchi, Antonio, Ferretti, Alessandro, Gagliardi, Martino, Stocco, Diego, Guida, Roberto, Mandelli, Beatrice, Alvigini, Laura
arXiv.org, Jan 28, 2021
© ProQuest LLC All rights reserved, Engineering Database, Publicly Available Content Database, ProQuest Engineering Collection, ProQuest Technology Collection, ProQuest SciTech Collection, Materials Science & Engineering Database, ProQuest Central (new), ProQuest Central Korea, SciTech Premium Collection, Technology Collection, ProQuest Central Essentials, ProQuest One Academic, Engineering Collection (ProQuest)
Available
Title: Performance and aging studies for the ALICE muon RPCs
Author: Quaglia, Luca; Bianchi, Antonio; Ferretti, Alessandro; Gagliardi, Martino; Stocco, Diego; Guida, Roberto; Mandelli, Beatrice; Alvigini, Laura
Contributor: Alvigini, Laura (pacrepositoryorg)
Subject: Argon ; Detectors ; Dark Current ; Gas Chromatography ; Resistive Plate Chambers ; Remote Procedure Calls ; Argon Plasma ; Sensors ; Shutdowns ; Muons ; Instrumentation and Detectors
Description: The ALICE muon trigger (MTR) system consists of 72 Resistive Plate Chamber (RPC) detectors arranged in two stations, each composed of two planes with 18 RPCs per plane. The detectors are operated in maxi-avalanche mode using a mixture of 89.7% C$$_2$$H$$_2$$F$$_4$$, 10% i-C$$_4$$H$$_{10}$$ and 0.3% SF$$_6$$. A number of detector performance indicators, such as efficiency and dark current, have been monitored over time throughout the LHC Run2 (2015-18). While the efficiency showed very good stability, a steady increase in the absorbed dark current was observed. Since the end of 2018, the LHC has entered a phase of long shutdown, during which the ALICE experiment will be upgraded to cope with the next phase of data taking, expected in 2021. The MTR is undergoing a major upgrade of the front-end and readout electronics, and will change its functionalities, becoming a Muon Identifier. Only the replacement of the most irradiated RPCs is planned during the upgrade. It is therefore important to...
Is part of: arXiv.org, Jan 28, 2021
Identifier: 2331-8422 (E-ISSN)
• Several versions