This thesis presents a search for long-lived particles decaying into displaced electrons and/or muons with large impact parameters. This signature provides unique sensitivity to the production of theoretical lepton-partners, sleptons. These particles are a feature of supersymmetric theories, which seek to address unanswered questions in nature. The signature searched for in this thesis is difficult to identify, and in fact, this is the first time it has been probed at the Large Hadron Collider (LHC). It covers a long-standing gap in coverage of possible new physics signatures. This thesis...
This thesis presents a search for long-lived particles decaying into displaced electrons and/or muons with large impact parameters. This signature pro...
The energy cost associated with modern information technologies has been increasing exponentially over time, stimulating the search for alternative information storage and processing devices. Magnetic skyrmions are solitonic nanometer-scale quasiparticles whose unique topological properties can be thought of as that of a Mobius strip. Skyrmions are envisioned as information carriers in novel information processing and storage devices with low power consumption and high information density. As such, they could contribute to solving the energy challenge.
In order to be used in...
The energy cost associated with modern information technologies has been increasing exponentially over time, stimulating the search for alternative in...
This book introduces several novel contributions into the current literature. Firstly, given that microgrid topologies are paramount in theoretical analysis, the author has proposed a rigorous method of computing the network’s admittance matrix and developed to facilitate the stability analysis of DC microgrids supplying nonlinear loads. This unique approach enabled the factorisation of the admittance matrix in a particular way that facilitates a rigorous theoretical analysis for deriving the stability conditions.
Secondly, author has proposed a unified control structure at the...
This book introduces several novel contributions into the current literature. Firstly, given that microgrid topologies are paramount in theoretical...
In 1964, a mechanism explaining the origin of particle masses was proposed by Robert Brout, François Englert, and Peter W. Higgs. 48 years later, in 2012, the so-called Higgs boson was discovered in proton-proton collisions recorded by experiments at the LHC. Since then, its ability to interact with quarks remained experimentally unconfirmed.
This book presents a search for Higgs bosons produced in association with top quarks tt̄H in data recorded with the CMS detector in 2016. It focuses on Higgs boson decays into bottom quarks H → bb̅ and...
In 1964, a mechanism explaining the origin of particle masses was proposed by Robert Brout, François Englert, and Peter W. Higgs. 48 years la...
After an extensive overview of the Standard Model and of the theory and phenomenology of Supersymmetry, this book describes the recent development of the ATLAS Particle Flow algorithm, a hadronic reconstruction technique aiming at enhancing the sensitivity of the experiment to new physics through the combination of the information from different ATLAS sub-detectors. The first ever ATLAS strong SUSY search exploiting this technique is also described, reporting the results and exclusion limits obtained using the complete proton-proton collision dataset recorded by the ATLAS experiment during...
After an extensive overview of the Standard Model and of the theory and phenomenology of Supersymmetry, this book describes the recent development of ...
The gathering and storage of data indexed in space and time are experiencing unprecedented growth, demanding for advanced and adapted tools to analyse them. This thesis deals with the exploration and modelling of complex high-frequency and non-stationary spatio-temporal data. It proposes an efficient framework in modelling with machine learning algorithms spatio-temporal fields measured on irregular monitoring networks, accounting for high dimensional input space and large data sets. The uncertainty quantification is enabled by specifying this framework with the extreme learning machine, a...
The gathering and storage of data indexed in space and time are experiencing unprecedented growth, demanding for advanced and adapted tools to anal...
This book reports on the design, fabrication and characterization of a set of flexible electronic components, including on-foil sensors, organic thin-film transistors and ultra-thin chips. The core of the work is on showing how to combine high-performance integrated circuits with large-area electronic components on a single polymeric foil, to realize smart electronic systems for different applications, such as temperature, humidity and mechanical stress sensors. The book offers an extensive introduction to Hybrid System-in-Foil technology (HySiF), and related on-chip/on-foil passive and...
This book reports on the design, fabrication and characterization of a set of flexible electronic components, including on-foil sensors, organic thin-...
This thesis reports advances in terahertz time-domain spectroscopy, relating to the development of new techniques and components that enhance the experimentalist’s control over the terahertz polarisation state produced by photoconductive emitters. It describes how utilising the dynamic magnetoelectric response at THz frequencies, in the form of electromagnons, can probe material properties at a transition between two magnetically ordered phases. Additionally, preliminary investigations into the properties of materials exposed to extreme terahertz optical electric fields are...
This thesis reports advances in terahertz time-domain spectroscopy, relating to the development of new techniques and components that enhance the expe...
This book analyses the use of a pulsed gas flow to structure bubbling gas-solid fluidised beds and to induce a special fluidisation state, called "dynamically structured flow", as a promising approach to process intensification.
It explores the properties of bubbles rising in staggered periodic arrays without direct interaction, assessing their size, separation, and velocity, and explains how a highly uniform, scalable flow offers tight control over the system hydrodynamics. These features are desirable, as they not only bypass engineering challenges occurring in traditional...
This book analyses the use of a pulsed gas flow to structure bubbling gas-solid fluidised beds and to induce a special fluidisation state, called "...
This book is intended to raise awareness about the use of sustainable Textile-Reinforced Mortar (TRM) composite systems, including plant fibers, for civil engineering applications. It presents a comprehensive characterization of the mechanical properties of Flax-TRM composite systems when used for strengthening masonry elements. Moreover, it reports on a physical and mechanical characterization of the single components, such as the textile and mortar one. In turn, it describes tensile tests on the composite and shear bond tests on Flax-TRM-to-masonry substrate elements, carried out for the...
This book is intended to raise awareness about the use of sustainable Textile-Reinforced Mortar (TRM) composite systems, including plant fibers, for c...
