Contributions to a conference proceedings

Controlling different external stimuli to tune the photophysical properties of purely organic molecular crystals toward designing multifunctional materials remains a challenge. Over the years, pyrene-based fluorophores owing to their high charge carrier mobility, complex photoelectronic characteristics in the excited state, and high fluorescence quantum yield, have come up as an attractive choice for researchers while designing luminescent molecular crystals. [...]

AbstractThe mechanical properties of martensite have been extensively studied due to its technological significance. It is well-established that quenched martensite exhibits high mechanical strength but low total elongation and is often deemed as a "brittle" microstructure [...]

QCD admits a contribution to the action, the $\theta$ term, which potentially gives rise to nontrivial phases and violates CP. This is essentially a question of how the vacuum reacts to the $\theta$ term. [...]

Single-spin asymmetries observed in polarised deep-inelastic scattering are important probes of hadron structure. The Sivers asymmetry provides information about the transverse momentum of the struck quark and can be related to final-state interactions. [...]

The PETRA IV storage ring is a project planned to upgrade the synchrotron light source PETRA III at DESY. The main aim is to decrease the horizontal emittance as low as 20 pmrad. [...]

Particle physics relies on Monte Carlo (MC) event generators for theory-data comparison, necessitating several samples to address theoretical systematic uncertainties at a high computational cost. The MC statistic becomes a limiting factor and the significant computational cost a bottleneck in most physics analyses. [...]

Many extensions of the standard model can give rise to tau leptons produced in non-conventional signatures in the detector. For example, certain long-lived particles can decay to produce taus that are displaced from the primary proton-proton interaction vertex. [...]

This contribution details the search forheavy neutral Higgs bosons from an extended Higgs sector decaying into b-quarks and produced in association with at least one b-quark. These scalarstates are predicted to have a significantly enhanced coupling to b-quarks invarious scenarios within MSSM and 2HDM models at large $\tan\beta$. [...]

Ziel von openCost ist die Schaffung einer technischen Infrastruktur, mit der Publikationskosten über standardisierte Schnittstellen und Formate frei zugänglich abgerufen werden können. So soll eine Kostentransparenz auf institutioneller, nationaler und internationaler Ebene ermöglicht werden. [...]

FEL performance critically depends on electron beam emittance, a fundamental beam quality parameter, which is strongly dependent on the spatiotemporal characteristics of the photoinjector drive laser pulse.Here, we present our recent results on temporal pulse shaping capabilities of the NExt generation PhotocAthode Laser (NEPAL), the systems driving the photoinjectors of EuXFEL and and FLASH FEL facilities. In particular, we demonstrate generation of 25 ps flat-top deep-UV pulses, which have been shown to improve emittance, in comparison to a regular gaussian profile.Temporal pulse shaping is enabled by a spatial light modulator, allowing for high-resolution spectral attenuation and phase control. [...]