2025-05-20 13:59 |
[PUBDB-2025-01709]
Dissertation / PhD Thesis
Mansi, L. ; Lawrie, C.
THE HIGGS BRANCH OF SIX DIMENSIONAL SUPERSYMMETRIC THEORIES:MAGNETIC QUIVERS, GEOMETRY, AND HASSE DIAGRAMS
217 pp. (2025)2025 = Dissertation, University of Hamburg, 2025
In this thesis, we report recent advancements in the understanding of Higgs branch moduli spacesof six-dimensional (1,0) supersymmetric quantum field theories, along with related developments.These progresses have been achieved by exploiting the interplay between geometrical engineeringand techniques in quiver gauge theories, leading to new insights into the Higgs mechanism’s actionin higher-dimensional supersymmetric theories.Paper I: We present an extension of the magnetic quiver technique to a class of non-gravitationalsupersymmetric quantum field theories in six dimensions known as Little String Theories (LSTs).These theories also exhibit a higher-group symmetry structure. Notably, we prove a monotonicitytheorem describing the evolution of κR, a quantity characterizing the higher group symmetry, underpartial Higgsing patterns.Paper II: Specializing to a brane engineering framework, we construct a family of LST modelswith a natural interpretation as an F-theory compactification. [...]
Restricted: PDF PDF (PDFA);
Detailed record - Similar records
|
2025-05-12 14:27 |
[PUBDB-2025-01600]
Dissertation / PhD Thesis
Hohmann, M. S. ; Tackmann, K. ; Urquijo, P.
Studies on Inclusive $|V_{ub}|$:A Measurement of $|V_{ub}|/|V_{cb}|$ at the Belle Experiment and A Search for the Weak Annihilation Contribution to Charmless Semileptonic $B$ Decays at the \belletwo Experiment
280 pp. (2024)2024 = Dissertation, University of Hamburg, University of Melbourne, 2025
Two analyses related to the inclusive determination of the magnitude of the Cabbibo-Kobayashi-Maskawa matrix element $|V_{ub}|$ are presented. The first analysis presents the first measurement of the ratio of partial branching fractions of the inclusive charmless, $\overline{B} \to X_u \ell \overline{\nu}$, to the inclusive charmed, $\overline{B} \to X_c \ell \overline{\nu}$, semileptonic $B$ decay, where $\ell$ represents an electron or muon, and $X$ a hadronic system. [...]
Restricted: PDF PDF (PDFA);
Detailed record - Similar records
|
2025-05-09 14:21 |
[PUBDB-2025-01590]
Book/Dissertation / PhD Thesis
Trebushinin, A. ; Serkez, S. ; Geloni, G. ; et al
Statistical optics methods for generating, simulating, and characterising emission from relativistic electron beams
[DESY-THESIS-2025-008]
Hamburg : Verlag Deutsches Elektronen-Synchrotron DESY, DESY-THESIS 172 pp. (2024) [10.3204/PUBDB-2025-01590]2024 = Dissertation, Universität Hamburg, 2025
Synchrotron radiation sources and free-electron lasers have revolutionised the study of matter and biological systems by providing unique combinations of radiation pulse characteristics. Although these two types of facilities differ fundamentally in terms of pulses time scales, coherence properties, and (peak) brilliance, each offers an exceptional mix of these features. [...]
OpenAccess: _PhD_Thesis___final__сopy_PDF-A - PDF PDF (PDFA); desy-thesis-25-008.title - PDF PDF (PDFA);
Detailed record - Similar records
|
2025-05-09 12:00 |
Detailed record - Similar records
|
2025-05-05 14:56 |
[PUBDB-2025-01533]
Dissertation / PhD Thesis
Erroi, A. ; Brovelli, S. ; Carulli, F.
Scintillating Nanocomposites Based on Lead Halide Perovskite Nanocrystals
123 pp. (2025)2025 = Dissertation, Scuola Di Dottorato Universita Degli Studi Di Milano-Bicocca, 2023/2024
In recent years, perovskite nanocrystals (CsPbX3, with X = Cl, Br, I) have emerged as a new class of materials for photonic and optoelectronic applications due to their exceptional synthetic scalability through solution-based processes, room-temperature fabrication and remarkable physical properties such as high emission efficiency and defect tolerance. Additionally, these materials possess tunable optical properties through controlled adjustments of their size and composition. [...]
Restricted: PDF PDF (PDFA); External link: Fulltext
Detailed record - Similar records
|
2025-04-15 21:30 |
Detailed record - Similar records
|
2025-04-08 13:39 |
Detailed record - Similar records
|
2025-04-08 13:31 |
[PUBDB-2025-01296]
Dissertation / PhD Thesis
Silletti, L. ; Calegari, F. ; Drescher, M.
Development of a tuneable few-femtosecond ultraviolet source up to 50 kHz repetition rate
Ultraviolet (UV) light plays a crucial role across various scientific fields such as biochemistry, material science and nanotechnology. Producing and using UV pulses with sub-5 fs durations is extremely demanding, but offers new possibilities for studying electron dynamics in light-induced biochemical re- actions.This thesis presents a tuneable ultrafast UV source operating at high repetition rates (up to 50 kHz), designed to be the key component of a table-top few-femtosecond UV-pump and IR-probe beamline to perform time-resolved spectroscopy measurements. [...]
OpenAccess: PDF PDF (PDFA); External link: Fulltext
Detailed record - Similar records
|
2025-04-08 12:18 |
Detailed record - Similar records
|
2025-04-08 11:46 |
Detailed record - Similar records
|
|
|