Scientific Open-access Literature Archive and Repository
Not a member yet
16397 research outputs found
Sort by
Esperienze da Monte Abatone a Cerveteri
Get PDFAn overview is presented of ongoing initiatives within the frame of the Monte Abatone Project, focused on the large urban necropolis of the Etruscan city of Caere (Cerveteri). Excavation campaigns; a multi-layered GIS, suitable for archive data and new acquisitions onfield; an experimental processing and modeling of the multi-scalar Information System architectural (BIM) and topographic (GIS) of the Campana Tumulus; challenging restorations of thousands of sherds: all this should contribute to have a clearer picture of the necropolis and of the historical and cultural profile of the city
Siccità, scarsità e crisi idriche. Il contributo della ricerca a supporto della definizione del bilancio idrico
Get PDFSempre più spesso i mezzi di comunicazione riportano eventi di siccità sul territorio italiano con
impatti drammatici sulla popolazione e sugli ecosistemi.
L’Intergovernmental Panel on Climate Change (IPCC), Forum scientifico intergovernativo sul cambiamento climatico istituito presso le Nazioni Unite, da tempo segnala l’intensificarsi di tali fenomeni nell’area mediterranea a seguito del cambiamento climatico.
Che fare? E quale può essere il ruolo della comunità scientifica a supporto di una governance dell’acqua?
Il presente volume, redatto dal Gruppo di lavoro “Siccità, scarsità e crisi idriche” del Dipartimento di
scienze del sistema terra e tecnologie per l’ambiente del CNR, con il supporto di altre Istituzioni (Istituto superiore per la protezione e la ricerca ambientale, Dipartimento della protezione civile, Struttura
commissariale per l’adozione di interventi urgenti connessi al fenomeno della scarsità idrica), ha visto
il coinvolgimento di quasi cento ricercatrici e ricercatori che hanno tentato di dare risposta a tali quesiti
fornendo elementi tecnico-scientifici a supporto di tutti i soggetti che, con diversi ruoli, contribuiscono
alla governance dell’acqua
Low-energy flavour probes of light vector bosons
Get PDFIn this work, we construct the chiral Lagrangian for a light spin-1 boson X possessing both vectorial and axial couplings to the light Standard Model quarks u, d, s. We then use it in order to describe the tree-level, model-independent
contributions to the ΔS = 1 transition K± → π±X, which is induced by Standard Model charged currents and is possibly enhanced by the emission of a longitudinally polarized X boson. Such a flavour observable is then shown to set the best modelindependent bounds on the diagonal axial couplings of X to light quarks in the mass range allowed by the decay kinematics, improving the currently available constraints from beam-dump experiments and collider searches
Landscaping and integrating Digital Archaeology and Digital Epigraphy resources: new challenges and future opportunities. Introduction to the Special section
Get PDFIntroduction to Special section The H2IOSC project and its impact on digital antiquity within the E-RIHS infrastructur
DHeLO and BiDiAr: new digital resources within the H2IOSC Project
Get PDFThis paper explores the initial outcomes of the H2IOSC Project, specifically within Work Package 2 (WP2 - Landscaping & Building Communities), which aims to survey the Italian digital landscape in Language Technologies, Humanities, and Heritage Science (HS). A significant outcome of the efforts of the Rome branch of CNR-ISPC is the development of two key resources: the DHeLO web app and the BiDiAr bibliographic collection. DHeLO (Digital Heritage Landscaping Platform) is designed to collect, store, and query metadata of research projects, products, and digital tools in Cultural Heritage (CH) and Heritage Science (HS). It aims to create a comprehensive disciplinary observatory by integrating data from multiple sources into a structured system that allows for complex queries and data indexing. This platform supports the FAIR principles (Findability, Accessibility, Interoperability, and Reusability) and includes metadata standards based on the Dublin Core Metadata Initiative (DCMI). BiDiAr (Bibliography of Digital Archaeology) functions as a relational database within Zotero, an open-source bibliographic tool. It compiles bibliographic entries relevant to digital archaeology, integrating themes and research outputs from the 'Archeologia e Calcolatori' journal. This database aids in thematic trend analysis and network analysis by linking bibliographic citations, enhancing the understanding of research dynamics and impacts within the E-RIHS community. Analyzing these resources reveals an exponential increase in virtual reality and 3D modeling products, driven by epistemological developments and the disruptive use of photogrammetric modeling. These tools not only enhance data accessibility and usability but also support interdisciplinary collaboration and innovation in digital heritage and archaeology
An observatory of epigraphic resources on the web: the Open Digital Epigraphy Hub
Get PDFThe Open Digital Epigraphy Hub (EpiHub) is an open access digital platform developed to streamline accessibility and organization of resources in digital epigraphy. Created within the Humanities and Cultural Heritage Italian Open Science Cloud (H2IOSC), EpiHub addresses the fragmented landscape of digital epigraphic resources, which span disciplines like linguistics, philology, and archaeology. Offering a comprehensive catalogue of national and international resources such as datasets, digital tools, geographical and chronological gazetteers, dictionaries, and text-processing software, EpiHub structures these assets through descriptive metadata to facilitate discoverability and usability for researchers and practitioners across diverse cultural and temporal scopes. The platform's flexible back-end architecture supports efficient data management and real-time updates to enhance front-end accessibility, organizing resources by thematic collections and allowing advanced searches based on specific epigraphic needs, such as language, geographic region, or historical period. Emphasizing FAIR principles, EpiHub standardizes metadata and controlled vocabularies to foster broader interoperability and data reuse across research projects. Integrated with related H2IOSC resources, including H-SeTIS and DHeLO, EpiHub aims to become a central resource, continuously enriched to support collaboration and innovation within the digital epigraphy community
The Ξ(1620) and Ξ(1690) molecular states from meson-baryon interaction up to next-to-leading order
Get PDFWe study s-wave meson-baryon interactions with strangeness S = −2 in a coupled-channels chiral approach incorporating not only the leading WeinbergTomozawa term in the Lagrangian, but also the Born terms and next-to-leading order contributions. Our model is fitted to the experimental data set of the nonleptonic Ξ+c → π+π+Ξ− weak decay from the Belle Collaboration, where the Ξ(1620) and Ξ(1690) states were observed in their decay to π+Ξ−. We calculate the invariant mass distribution of the π+Ξ− final state, showing that our theoretical prediction is capable of explaining the experimental data by reproducing the two resonance peaks.
Regarding the pole content, we are able to dynamically generate two poles not far away from the known experimental values of the Ξ(1620) and Ξ(1690) states. In our approach these resonances have a molecular nature, where the lowest one strongly couples to the πΞ channels, while the second pole couples more strongly to the K¯ Σ channels
Observation of isoscalar 1−+ spin-exotic state η1(1855)
Get PDFUsing a sample of (10.09 ± 0.04)×109 J/ψ events collected with the BESIII detector operating at the BEPCII storage ring, a partial wave analysis of the decay J/ψ → γηη is performed. The first observation of an isoscalar state
with exotic quantum numbers JP C = 1−+, denoted as η1(1855), is reported in the process J/ψ → γη1(1855) with η1(1855) → ηη. Its mass and width are measured to be (1855 ± 9+6 −1) MeV/c2 and (188 ± 18+3 −8) MeV, respectively, where the first uncertainties are statistical and the second are systematic, and its statistical significance is estimated to be larger than 19σ
Charmed meson decays at BESIII
Get PDFCharm meson decays remain an exciting field for particle physics investigations. In this article, we summarize the results on charm meson decays that have been obtained in the BESIII experiment
Quarkonium states in strong magnetic fields
Get PDFBased on the constraint formalism for the Dirac equation (Crater H. W. and Van Alstine P., Phys. Rev. D, 30 (1984) 2585; 36 (1987) 3007) the twobody system in a strong uniform magnetic field is considered. In the framework of
such an approach the ground state of a quarkonium is studied in detail. The energy of the ground state level of a quarkonium strongly depends on the quark mass and on the value of the magnetic field strength. It is shown that strong magnetic fields sufficiently decrease the quarkonium life-time compared with the zeroth magnetic field case