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SPaRKLE on board Space Rider: A miniaturized laboratory in low Earth orbit for low-energy particles
Full text linkSPaRKLE, the Small Particle Recognition Kit for Low Energies, is a compact detector for γ-ray and low-energy charged particle physics in Low Earth Orbit. Upon successful completion of the project phases, SPaRKLE will be installed on Space Rider, an uncrewed orbiting laboratory, for a mission lasting approximately two months. During the mission, SPaRKLE will measure particle fluxes and investigate transient phenomena such as Gamma-ray Bursts (GRBs) and Terrestrial Gamma-ray Flashes (TGFs). Designed within a CubeSat unit, SPaRKLE includes a Cerium-doped Gadolinium Aluminium Gallium Garnet (GAGG) scintillator calorimeter, silicon detectors, and plastic scintillator anti-coincidence detectors. It will perform event-based particle identification and detect X-ray and γ-ray photons.This paper presents an overview of the project, its mission objectives, detector operations, and technological innovations
Study of a high intensity positron source based on oriented crystals
Full text linkPositron sources are a key element for present and future lepton colliders, such as FCC-ee and ILC, which impose stringent requirements on electron and positron beams: they must have high intensity and low emittance in order to
achieve high luminosity. The conventional method for making a positron source is to use a tungsten target hit by a high energy primary electron beam, generating photons by Bremsstrahlung that subsequently convert to e+e− pairs. However, the high thermal load and high energy density deposited in the target limits the intensity achievable with this technology. A possible way to overcome these
limitations is to exploit the radiation processes that occur when charged particles pass through oriented crystals. A concrete proposal for an intense positron source with
parameters of interest to FCC-ee based on this method has been advanced in the e+BOOST project. In this work, the proposal will be described in detail together with simulation results based on Geant4
Upgrade of the readout electronics for the ATLAS Liquid Argon Calorimeter
Full text linkThe ATLAS Liquid Argon Calorimeter readout electronics will be upgraded for the HL-LHC. This includes the development of custom preamplifiers and shapers with low noise and excellent linearity, a new ADC chip with two gains and new calibration boards with excellent non-linearity and non-uniformity between all calorimeter channels. New ATCA compliant signal processing boards equipped with FPGAs and high-speed links receiving the detector data and performing energy and time reconstruction as well as a new timing and control system are also designed. Test results of the latest versions of the aforementioned components and the latest
firmware development will be presented
Analysis of threshold oscillations observed in CMS Phase 2 Inner Tracker modules
Full text linkDuring Long Shutdown 3, between 2026 and 2028, the CMS detector will be updated in order to fulfill the requirements of the new LHC era, called High Luminosity LHC. The updated version of the CMS pixel detector is called Inner Tracker, and it is based on silicon pixel sensor technology. The base unit of the detector is the detector module, which is the assembly of the silicon sensor connected to one or more readout chips and the appropriate printed circuit board for powering and readout. These modules went thought an intense R&D and validation campaign.
In this study, results obtained with prototype modules are presented. The modules are formed by a sensor with 145152 pixels bump-bonded to the CMS readout chip. In this study, effects that affect the module threshold, which is a crucial parameter for the detection of a particle signal, have been observed. The deep characterization of this phenomenon allowed to optimize the module calibration procedure through
the development of a dedicated software
13th International Conference SOILS OF URBAN, INDUSTRIAL, TRAFFIC, MINING AND MILITARY AREAS (SUITMA) FROM A ONE HEALTH PERSPECTIVE
Full text linkSoil is a key component of the water and nutrient cycle, and a major contributor to global carbon sequestration. Soil also provides habitats for nearly all land plants, as well as a large proportion of terrestrial fauna. Despite its global importance, it is estimated that one third of global soil is degraded. In anthropized areas, soils undergo many forms of disturbance: manipulation, compaction, and pollution which impact their quality. However, even degraded soils have the potential to alleviate environmental problems
and play a vital role in supporting vegetation. Degraded soils of urban areas and other anthropogenic lands merit scientific and professional attention in order to enhance
their ecosystem services and to support nature- based solutions, to tackle the urgent challenges of climate change, and for the health of all organisms and ecosystems
Camerano e la sua città sotterranea. Gestire la transizione dall’artigianato al turismo
Full text linkCamerano e la città sotterranea offre la prima analisi completa del Modello Camerano, frutto della ricerca multidisciplinare della COST Action Underground4Value. Il volume accompagna il lettore alla scoperta del legame identitario tra comunità e patrimonio ipogeo, dell’unicità geomorfologica del sistema sotterraneo e dell’evoluzione della gestione turistica, messa alla prova dalla pandemia. Propone strategie avanzate per superare il turismo mordi e fuggi, rafforzare la resilienza territoriale e riconnettere il complesso ipogeo al paesaggio del Conero, integrandolo con enoturismo, escursionismo e cicloturismo, verso una rete strutturata degli ipogei marchigiani. Il libro valorizza una visione integrata del territorio, sottolineando il potenziale culturale delle pratiche più partecipative
Prospettive femministe sulla città. Vivere insieme tra cura, ecologia e giustizia spaziale
Full text linkIl volume esplora come una prospettiva femminista possa trasformare città e territori,
proponendo un cambio di paradigma capace di superare dualismi, discriminazioni e
modelli urbani che ignorano le relazioni di cura e le diverse soggettività. Attraverso
riferimenti alle teorie femministe, all’ecofemminismo e all’approccio post-umano, il
libro mostra come politiche, pratiche e processi partecipativi possano generare
ambienti più inclusivi, accessibili ed ecologicamente responsabili. I contributi presentati
evidenziano esperienze internazionali, strategie di rigenerazione eco-sociale, nuove
forme di mutualismo e modi alternativi di abitare che intrecciano diritti, corpi e tutela
ambientale. Organizzato in cinque capitoli, il volume offre una lettura interdisciplinare
dei futuri possibili delle città, mettendo al centro la cura come responsabilità condivisa
e proponendo strumenti per ripensare lo spazio pubblico e le politiche urbane in chiave
femminista
Spiegabilità e Intelligenza Artificiale. Prospettive tecnologiche, etiche e normative
Full text linkPer superare i limiti della spiegabilità tecnica e arrivare a un’adeguata spiegabilità etico-legale,
l’adozione di un approccio interdisciplinare nelle ricerche in ambito di IA sembra una delle strategie
più convincenti. Su questa linea, il presente volume offre un dialogo tra ricercatori di diverse
discipline (informatica, linguistica computazionale, logica, epistemologia, etica, bioetica, diritto,
scienze cognitive e sociali) che, sulla base di casi di studio, progetti di ricerca, approcci metodologici
e interessi scientifici diversi, discutono se e in che modo il requisito chiave della spiegabilità possa
essere effettivamente soddisfatto e implementato a livello tecnologico, cercando non solo di
comprendere quali specifici obblighi di spiegabilità siano presi in considerazione dalla comunità
di ricercatori ed esperti in ambito di IA, ma anche di prevedere quale grado di conformità etico-
giuridica tali sistemi potranno possedere nel prossimo futuro e quali sono i relativi rischi attesi a
livello individuale e sociale. Il volume, quindi, mostrando una pluralità di prospettive di ricerca,
spesso in tensione, invita a considerare la ‘spiegabilità’ come un concetto sfaccettato e stratificato
che va considerato non come un requisito puramente tecnico ma come un insieme di pratiche
epistemiche, etiche e normative
Measurement of the production cross-section of a Z boson in association with b- and c-jets
Full text linkTherecently published measurement of the production cross-section of a Z boson in association with heavy flavor jets, i.e., b-orc-jets, at the ATLAS experiment is presented using 140 fb−1 of proton-proton collision data from the Run 2 of the Large Hadron Collider. This proceeding discusses inclusive and differential cross-section measurements in two signal regions, Z +1b- or c-jet and Z +2b jets. The measurements are compared with predictions from different Monte Carlo generators based on next-to-leading-order matrix element calculations. Selected observables are compared with various models containing different fractions of intrinsic
charm (IC)
Measurement of the CP properties and anomalous couplings of the Higgs boson with the CMS experiment
Full text linkIn many beyond the Standard Model (BSM) theories, anomalous
couplings of the Higgs boson with the W and Z vector bosons, or with fermions, are possible and can potentially violate CP symmetry. BSM couplings between the Higgs boson and the top quark, as well as with particles not yet observed, could generate CP violation in the interactions between the Higgs boson and gluons, the dominant process in production at the LHC. Studies of CP violation and anomalous couplings of the Higgs boson to vector bosons (HVV) and fermions (Hff) conducted by the CMS experiment, utilizing the complete Run 2 datasets, are presented. We focus on measurements where the Higgs boson is produced on-shell. The data corresponds to an integrated luminosity of 138 fb−1 at a proton-proton collision energy of 13 TeV. The kinematic distributions of the final states are sensitive to the Higgs boson’s quantum numbers, and various production and decay channels are used for these studies. Matrix element techniques and multivariate algorithms are employed to identify the production mechanisms and enhance sensitivity to the Higgs boson’s tensor structure in the interactions