Journal Article

We report a measurement of the CP-violating parameters C and S in B0→KS0π0 decays at Belle II using a sample of 387×106 BB¯ events recorded in e+e- collisions at a center-of-mass energy corresponding to the ϒ(4S) resonance. These parameters are determined by fitting the proper decay-time distribution of a sample of 415 signal events. [...]

We determine the Cabibbo-Kobayashi-Maskawa matrix-element magnitude |Vcb| using B¯0→D*+ℓ-ν¯ℓ decays reconstructed in 189 fb-1 of collision data collected by the Belle II experiment, located at the SuperKEKB e+e- collider. Partial decay rates are reported as functions of the recoil parameter w and three decay angles separately for electron and muon final states. [...]

Linking structure to mechanical and elastic properties is a major concern for the development of novelelectroactive materials. This work reports on the potential-induced changes in thickness and Youngmodulus of a substrate supported, perchlorate doped polypyrrole thin film (<100 nm) investigated withelectrochemical atomic force microscopy (AFM) under in situ conditions. [...]

CobalteChromiumeMolybdenum (CoeCreMo) alloys are commonly used for artificial hipand knee joint metallic implants. These components are subjected to repetitive loads duringservice. [...]

Structural insight into nano-objects down to the atomic scale is one of the most important prerequisites tounderstand the properties of functional materials and will ultimately permit one to relate the size and shape ofnanoparticles to their catalytic activity. We elucidate the potential of extracting structural information abouta small ensemble of nanoparticles that are semiregularly arranged on a periodic array from coherent x-rayBragg diffraction. [...]

Ultrafast H$_2$$^+$ and H$_3$$^+$ formation from ethanol is studied using pump-probe spectroscopy with an extreme ultraviolet (XUV) free-electron laser. The first pulse creates a dication, triggering H2 roaming that leads to H$_2$$^+$ and H$_3$$^+$ formation, which is disruptively probed by a second pulse [...]

Upon ionization, water forms a highly acidic radical cation H$_2$O$^+$· that undergoes ultrafast proton transfer (PT)—a pivotal step in water radiation chemistry, initiating the production of reactive H$_3$O$^+$, OH radicals, and a (hydrated) electron. Until recently, the time scales, mechanisms, and state-dependent reactivity of ultrafast PT could not be directly traced [...]

This work deals with the tail and “failed” tail sectors of the conservative dynamics for compact binary systems at the 5PN order. We employ the Fokker Lagrangian method with dimensional regularization, and our results for the tail sector are perfectly consistent with the previous effective field theory computations. [...]

The quasi-2D platinum-based rare earth intermetallic LaPt$_2$Si$_2$ has attracted attention as it exhibits strong interplay between charge density wave order and superconductivity. However, most of the results reported on this material come from theoretical calculations, preliminary bulk investigations and powder samples, which makes it difficult to uniquely determine the temperature evolution of its crystal structure and, consequently, of its charge density wave transition. [...]

Here we report on the non-uniform shell growth of In$_x$Ga$_{1−x}$As on the GaAs nanowire (NW) core by molecular beam epitaxy (MBE). The growth was realized on pre-patterned silicon substrates with the pitch size ($p$) ranging from 0.1 μm to 10 μm. [...]