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Inquiring golden ratio by electric nets and elastic springs
Get PDFAn interdisciplinary teaching activity in the Physics laboratory is described here using the hands-on methodology to experiment with high school students an interdisciplinary learning crunch focused on the Fibonacci sequence. Students were involved in the equivalent resistance calculation of an infinite two dimensional electrical circuit. In the laboratory, they built a system of resistances and, analogically, a system of springs, and verified the same symmetric properties by rediscovering the gold number. The students developed content knowledge, critical thinking, collaboration, creativity, and communication skills. The hands-on experience increased students’ motivation and participation, making them more involved in the educational process
A comparison between the First and the Second Quantum Revolutions: Development of a teaching course for secondary school students
Get PDFWe are now experiencing the Second Quantum Revolution. It follows a first one that took place at the beginning of the XX Century and from which the fundamental idea of wave-particle duality was born. During the last century, this
revolution led to the development of some technologies at the base of modern society like transistors and lasers. The Second Quantum Revolution is giving rise to new kinds of technologies such as quantum sensors, quantum communication protocols, quantum computers and quantum simulators. It is changing the world we live in and, as educators, we are called to promote quantum literacy and contribute to
preparing the next generations of experts. In the present contribution, we present a teaching module on these themes targeted at high school students that aims to introduce some basic concepts and ideas to grasp what quantum technologies are, as well as foster a reflection on the cultural and conceptual scope of the ongoing revolution
The muon g−2 within the Standard Model
Get PDFWe summarize recent developments in the Standard-Model evaluation of the anomalous magnetic moment of the muon aμ, both in the hadronic-lightby-light and hadronic-vacuum-polarization contributions. The current situation for
the latter is puzzling as we are confronted with multiple discrepancies that are not yet understood. We present updated fits of a dispersive representation of the pion
vector form factor to the new CMD-3 data set and quantify the tensions with the other high-statistics e+e− → π+π− experiments in the contribution to aμ in the energy range up to 1 GeV, as well as in the corresponding contribution to the intermediate Euclidean window
3D/4D visualisation for documenting and editing images of pre-roman Italy: the ICAR database
Get PDFIt has been over twenty years since the ICAR database of figurative scenes from pre-Roman Italy (Etruscan, Italic, Italiote) was first made available online to researchers, students and the general public (http://icar.huma-num.fr/, 2002-, ISSN 2491-2301). The database is a tool for documentation and research into ancient iconography, bringing together the major corpora of images from pre-Roman Italy and providing the main information (archaeological, historical, stylistic, discovery, conservation, bibliographical) relating to them. Since 2000, ICAR has been developing its activities in association with various iconographic research programmes. Over the last ten years the database has also taken into account the modern documentation of the ancient artefacts and offers a data interoperability portal bringing together all the international collections preserving modern reproductions of Etruscan painting. Within this framework, we developed an exploratory tool (ICAR 4D) to combine high-definition 3D digitizations of two Etruscan painted tombs (the tombs of the Bigas and of Orcus in Tarquinia) with all the drawings and paintings produced over more than a century since the discovery of the two monuments. This tool uses cross-browser and open-source libraries to digitally expose and allow 3-D real-time online examination of both tombs models and their rich graphical documentation
Un Virtual Immersive movie per la fruizione del patrimonio archeologico: il viaggio nella “Tomba della Regina” di Sirolo-Numana
Get PDFThe paper presents a workflow aimed at documenting, disseminating, and making archaeological heritage more accessible. To preserve scientific rigour and data accuracy, also providing an emotional experience to the audience, the entire process was carried out through the collaborative efforts of three professionals: the archaeologist, the digitization expert, and the entertainment industry professional. The case study is a pre-Roman necropolis located in the “I Pini” archaeological area (Marche Region, Italy). The site presents several circular burials, one of which belongs to a female figure known as the “Queen”, which became the central focus of the narrative. The first working step was the digital documentation of a selection of the findings from the “Queen’s” tomb, currently displayed at the Antiquarium Statale of Numana, followed by the virtual reconstruction of the burial. Then, the obtained 3D models were used to generate a Virtual Immersive Movie (VIM) which allows visitors to immerse themselves in the virtual reconstruction and interact with the archaeological findings using a Head-mounted Display. The evaluation of the user experience proved the effectiveness of the VIM. The scores obtained from the questionnaire will also serve as inspiration for further enhancements, aiming to deliver a more interactive and improved educational experience
Donne, filosofia della natura e scienza
Get PDFIl volume raccoglie una selezione di saggi nati dagli interventi presentati in occasione delle Giornate di studio “Donne, filosofia della natura e scienza” tenutesi a Roma dal 2019 al 2022 e organizzate da Delfina Giovannozzi e Sandra Plastina. Questa iniziativa individua il focus della riflessione sul contributo delle donne alla storia culturale occidentale a partire dalla loro presenza nei dibattiti filosofici e scientifici in un arco temporale piuttosto ampio, anche se indagato con inevitabile parzialità attraverso una selezione di figure femminili diversamente inserite nel confronto intellettuale coevo. Dagli scritti naturalistici di Ildegarda di Bingen, passando per le letture dei testi dello Stagirita – filtrate dal diffondersi dell’aristotelismo volgare – di Fiammetta Frescobaldi, Camilla Erculiani e Lucrezia Marinella, fino alla partecipazione al dibattito sul cartesianesimo di Giuseppa Eleonora Barbapiccola e alle dispute sulla natura ontologica dello spazio che mette in dialogo Catharine Cockburn con i maggiori filosofi inglesi del XVIII secolo, il volume riflette inoltre sul ruolo centrale delle donne che traducono testi filosofico-scientifici o si misurano con discipline più tecniche connesse con la medicina, come Anna Morandi. Sullo sfondo, a fare da filo conduttore, stanno i contesti culturali in cui questa partecipazione ha avuto luogo, dalla solitudine conventuale alle spezierie, ai salotti, fino al limitare delle aule universitarie e delle maggiori istituzioni culturali, in cui le donne trovano spesso un ruolo all’ombra di carriere maschili più visibili
Charm physics at the Compact Muon Solenoid experiment
Get PDFIn this contribution, we illustrate the first measurement (The CMS
Collaboration, JHEP, 2021 (2021) 225) of the cross-section for open charm pro-
duction at the Compact Muon Solenoid experiment (CMS) (The CMS Collabora-
tion, JINST, 3 (2008) S08004). The analysis encompasses three distinct
open-charm mesons and their respective charge conjugates. The dataset employed in this study corresponding to an integrated luminosity of 29 nb−1, was collected in 2016, during the second Run of the Large Hadron Collider (LHC), from proton-proton collisions at √s = 13 TeV. For this analysis, we define the fiducial region as characterised by 4 < pT < 100 GeV and |η| < 2.1. To conclude, we will illustrate the implications and the future potential of this research
Design and performance of the Phase 2 CMS experiment electromagnetic calorimeter readout electronics
Get PDFThe High Luminosity LHC project aims to increase the instanta- neous luminosity of the collisions by a factor of 4 compared to the value at which the LHC currently operates. To cope with these new data taking conditions, the central part of the CMS electromagnetic calorimeter will undergo a complete up- grade of both the on-detector electronics and the readout electronics located in the service cavern. Only the lead-tungstate crystals and the avalanche photodiodes are expected to maintain good performance and do not need to be replaced. The results of the 2018 and 2021 test beam campaigns are presented. Electron beams up to 250 GeV were employed to test the Phase 2 electronics mounted on the ECAL crystals in terms of time and energy resolution
Colorflow Studies in the ATLAS Boosted Higgs Boson Tagger
Get PDFEnhancing the discrimination power to identify Higgs boson decay events into a pair of bottom quarks in the boosted regime is of significant importance within the ATLAS experiment at the Large Hadron Collider (LHC). Effectively iden- tifying this specific process enhances the collected sample of Higgs boson production events, hence reducing the statistical uncertainties in the determination of the prop- erties of this particle. The production of the Higgs boson in the so-called boosted regime, i.e., with large transverse momentum with respect to the beam direction, results in the final-state quark pair being highly collimated, reconstructed as a sin- gle large-radius jet (LargeR-jet). Discriminating between these signal events and the background is a rather challenging task. To enhance the discriminative power between signal and background events, it is possible to employ variables that are sensitive to the SU(3) color representation of the decaying particle, which produces the LargeR-jet. This study has demonstrated how the new ATLAS boosted Higgs boson tagger (GN2X) appears to autonomously utilize color information from the jet, showcasing its robustness, thus offering valuable insights for future analyses within the collaboration focusing on such events
Supernova neutrinos detection in JUNO
Get PDFJUNO is the acronym for Jiangmen Underground Neutrino
Observatory, an underground neutrino observatory located close to Kaiping city, South China. It will be the largest detector to use a liquid scintillator to detect neutrinos. JUNO will use 20 ktons of liquid scintillator and will be equipped with 17612 20 inch photomultipliers and 25600 3-inch photomultipliers to capture the light emitted during the scintillation. JUNO will be able to detect neutrinos and antineutrinos emitted by various sources including those emitted during stellar explosions. In particular, it will be possible to study both the diffuse supernova neutrino background and the neutrinos emitted by a Supernova that occurred during the active life of the Observatory. By exploiting the different detection channels, the high energy
resolution (3% at 1 MeV), and the ability to detect neutrinos of all lepton families, JUNO will have a leading role in studying these phenomena. In this regard, a trigger
system focused on multi-messenger astronomy has been developed specifically for JUNO. The potential of JUNO to detect neutrinos produced by supernovae will be presented and discussed in this manuscript