CERN Accelerating science

CERN Document Server 16 records found  1 - 10next  jump to record: Search took 1.26 seconds. 
1.
Study of b- and c-jets identification for Higgs coupling measurements at the Muon Collider / Da Molin, Giacomo (LIP, Lisbon)
The Muon Collider is a possible option for the next generation of high-energy collider machines. It would permit to achieve very high center-ofmass energy using leptons without occurring in significative synchrotron radiation losses as in positron-electron rings. [...]
2023 - 4 p. - Published in : Nuovo Cimento C 46 (2023) 92 Fulltext: PDF; External link: Fulltext
In : 108th Congresso Nazionale della Societa Italiana di Fisica (SIF 2022), Milan, Italy, 12 - 16 Sep 2022, pp.92
2.
Top-quark pair cross-section at $ \sqrt{{s}}$ = 13.6 TeV with the ATLAS experiment / Pintucci, L (Udine U. ; INFN, Trieste) /ATLAS Collaboration
The ATLAS detector started collecting data in 2022 at the centreof- mass energy v s = 13.6TeV. In this report, an analysis of proton-proton collision data collected in August 2022 by the ATLAS detector at the LHC is shown. [...]
2023 - 6 p. - Published in : Nuovo Cimento C 46 (2023) 60
In : 108th Congresso Nazionale della Societa Italiana di Fisica (SIF 2022), Milan, Italy, 12 - 16 Sep 2022, pp.60
3.
Weighing antimatter: AEgIS Phase 2, upgrades and first data / Volponi, M (Trento U. ; INFN, Trento ; CERN) /AEgIS Collaboration
AE¯gIS (Antimatter Experiment: Gravity, Interferometry, Spectroscopy) is an experiment at the Antiproton Decelerator (AD) facility at CERN whose goal is to study the asymmetry between matter and antimatter and, in particular, the effect of the Earth’s gravitational field on antihydrogen ( ¯ H). During the 2018 run, ¯H was formed, leading into considerable gain of knowledge on the processes involved. [...]
2023 - 4 p. - Published in : Nuovo Cimento C 46 (2023) 106 Fulltext: PDF;
In : 108th Congresso Nazionale della Societa Italiana di Fisica (SIF 2022), Milan, Italy, 12 - 16 Sep 2022, pp.106
4.
Measurement of the production of a W boson in association with a charm quark at $\sqrt s$ = 13 TeV with the ATLAS detector / Manco, G (Pavia U.) /ATLAS Collaboration
The production of a W boson in association with a charm quark has been investigated since the Tevatron era, because of its connection with the strange quark PDF. This process is the most probable production from strangegluon scattering, therefore the cross section gives direct information about strange distribution. [...]
2023 - 4 p. - Published in : Nuovo Cimento C 46 (2023) 96 Fulltext: PDF;
In : 108th Congresso Nazionale della Societa Italiana di Fisica (SIF 2022), Milan, Italy, 12 - 16 Sep 2022, pp.96
5.
Using Graph Neural Networks to improve jet flavour-tagging and its modeling for the ATLAS experiment at the LHC / Tanasini, M (Genoa U.) /ATLAS Collaboration
Graph Neural Networks (GNNs) are machine-learning algorithms particularly suitable for modeling data with complex topological correlations. In this communication, their application to jet flavour-tagging for the ATLAS experiment at the Large Hadron Collider is presented. [...]
2023 - 10 p. - Published in : Nuovo Cimento C 46 (2023) 56
In : 108th Congresso Nazionale della Societa Italiana di Fisica (SIF 2022), Milan, Italy, 12 - 16 Sep 2022, pp.56
6.
Measurement of inclusive photon production cross section with ATLAS / Cella, S (CERN) /ATLAS Collaboration
The cross section for the inclusive production of isolated prompt photons in proton-proton collisions is measured at v s = 13 TeV, using an integrated luminosity of 139 fb -1 collected with the ATLAS detector at the LHC. The measurement is performed using two criteria for photon isolation: the standard fixed-cone approach and the Frixione isolation prescription. [...]
2023 - 4 p. - Published in : Nuovo Cimento C 46 (2023) 88 Fulltext: PDF;
In : 108th Congresso Nazionale della Societa Italiana di Fisica (SIF 2022), Milan, Italy, 12 - 16 Sep 2022, pp.88
7.
Measuring $\mu_b$ at the LHC with ALICE via antiparticle-over-particle ratios / Ciacco, M (INFN, Turin ; Turin Polytechnic) /ALICE Collaboration
The baryon chemical potential µB is a fundamental parameter for the statistical mechanical description of particle production in heavy-ion collisions: its value encodes the average net baryon content of the fireball at chemical freeze-out. The first µB measurement in high-energy Pb-Pb collisions at the LHC was published in 2018 in Nature, and it was found that µB = 0.7 ± 3.8MeV. In this contribution, an improved µB measurement based on the study of antiparticle-to-particle ratios for protons, 3He and hypertriton (3 .H) using the data collected by ALICE in Run 2 of the LHC, is presented. [...]
2023 - 7 p. - Published in : Nuovo Cimento C 46 (2023) 55
In : 108th Congresso Nazionale della Societa Italiana di Fisica (SIF 2022), Milan, Italy, 12 - 16 Sep 2022, pp.55
8.
Performance of Monolithic Analog Pixel Test Structure with Operational Amplifier / Ferrero, C (INFN, Turin ; Turin U.) /ALICE Collaboration
The ALICE Collaboration at CERN foresees to replace, during the LHC LS3, the innermost three layers of the ALICE Inner Tracking System (ITS2) with a new vertex detector composed of bent and ultra-thin monolithic silicon sensors. In this work, the preliminary performance studies of the Analog Pixel Test Structure with an Operational Amplifier output buffer (APTS OPAMP), produced in the 65 nm TowerJazz Panasonic Semiconductor Company (65 nm TPSCo) process, are presented. [...]
2023 - 4 p. - Published in : Nuovo Cimento C 46 (2023) 94 Fulltext: PDF;
In : 108th Congresso Nazionale della Societa Italiana di Fisica (SIF 2022), Milan, Italy, 12 - 16 Sep 2022, pp.94
9.
Measurements on triple-GEM detectors with highly segmented readout board in test beam / Aruta, C (INFN, Bari ; Bari U.) ; Bianco, M (CERN) ; Colaleo, A (INFN, Bari ; Bari U.) ; Everaerts, P (Wisconsin U., Madison) ; Galloni, C (Wisconsin U., Madison) ; Kang, Y (Seoul Natl. U.) ; Lee, J (Seoul Natl. U.) ; Maggi, M (INFN, Bari) ; Pellecchia, A (INFN, Bari ; Bari U.) ; Petre, L (Brussels U.) et al.
Low EMittance Muon Accelerator scheme (LEMMA) has been proposed for the future Muon Collider. This solution provides muon beams through the reaction e+e - . [...]
2023 - 4 p. - Published in : Nuovo Cimento C 46 (2023) 103 Fulltext: PDF;
In : 108th Congresso Nazionale della Societa Italiana di Fisica (SIF 2022), Milan, Italy, 12 - 16 Sep 2022, pp.103
10.
Dark Sector searches in final states with prompt neutral particles with the ATLAS detector / Pompa Pacchi, E (INFN, Rome ; Rome U.) /ATLAS Collaboration
This work investigates the possibility that dark matter could be produced at the LHC, under the assumption that it is weakly coupled to the ordinary matter via a mixing parameter e and that it constitutes a new sector of particles. Under the assumption of a neutral mediator, the dark photon, that decays promptly inside the ATLAS innermost detector volume, the lepton-jet signature, in which collimated leptons are reconstructed as a single object, is exploited. This work, based on the full Run-2 dataset, aims at extending the sensitivity of the previous Run-1 search to smaller branching ratios of the Higgs boson decaying to dark photons and to a wider dark photon mass range in the e > 10 -5 region..
2023 - 4 p. - Published in : Nuovo Cimento C 46 (2023) 100 Fulltext: PDF;
In : 108th Congresso Nazionale della Societa Italiana di Fisica (SIF 2022), Milan, Italy, 12 - 16 Sep 2022, pp.100

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