Journal Article

The pressure evolution of RuO$_2$ is studied using single-crystal x-ray diffraction in a diamond anvil cell, combined with ab initio band-structure calculations. The tetragonal rutile structure transforms into the orthorhombic CaCl$_2$-type structure above 13 GPa under quasihydrostatic pressure conditions. [...]

The paper presents the results of studies of photoluminescence (PL) of glass at a temperature of 12.6 K under the influence of synchrotron radiation λexc = 45 nm. It was found that the obtained PL spectra consist of three bands $λ_{mon}$ = 278, 336, and 379 nm. [...]

Y$_3$Al$_5$O$_{12}$:Cr$^{3+}$ ceramics were prepared by a new method of electron beam synthesis. Special features of thismethod are the fast speed of synthesis, high phase purity and stoichiometry [...]

Chemical crystallography beamline P24 offers a wide range of crystallographic applications such as charge density analysis, disordered and modulated structures, x-ray standing wave and phase transitions studies under ambient and non-ambient conditions. The beamline consists of two experimental hutches housing a heavy load Kappa diffractometer (EH 1 ) and Eulerian diffractometer (EH2 ). [...]

The dissociation dynamics of diiodomethane molecules (CH$_2$I$_2$) have been investigated following absorption of 98 eV XUV photons. In the measurement at the reaction microscope endstation at the free-electron laser FLASH2, ionic fragments created by 4d core ionization followed by Auger decay have been detected in coincidence [...]

The flux growth of InVO$_4$ bulk single crystals has been explored for the first time. The reported eutectic composition at a ratio of V$_2$O$_5$:InVO$_4$ = 1:1 could not be used as a self-flux since no sign of melting was observed up to 1100 °C. [...]

Reverse transcriptases (RTs) are enzymes with DNA polymerase and RNase H activities. They convert ssRNA into dsDNA and are key enzymes for the replication of retroviruses and retroelements [...]

Using data samples of 983.0 fb$^{−1}$ and 427.9 fb$^{−1}$ accumulated with the Belle and Belle II detectors operating at the KEKB and SuperKEKB asymmetric-energy e$^{+}$e$^{−}$ colliders, singly Cabibbo-suppressed decays $ {\Xi}_c^{+}\to p{K}_S^0 $, $ {\Xi}_c^{+}\to \Lambda {\pi}^{+} $, and $ {\Xi}_c^{+}\to {\Sigma}^0{\pi}^{+} $ are observed for the first time. The ratios of branching fractions of $ {\Xi}_c^{+}\to p{K}_S^0 $, $ {\Xi}_c^{+}\to \Lambda {\pi}^{+} $, and $ {\Xi}_c^{+}\to {\Sigma}^0{\pi}^{+} $ relative to that of $ {\Xi}_c^{+}\to {\Xi}^{-}{\pi}^{+}{\pi}^{+} $ are measured to be$ {\displaystyle \begin{array}{c}\frac{\mathcal{B}\left({\Xi}_c^{+}\to p{K}_S^0\right)}{\mathcal{B}\left({\Xi}_c^{+}\to {\Xi}^{-}{\pi}^{+}{\pi}^{+}\right)}=\left(2.47\pm 0.16\pm 0.07\right)\%,\\ {}\frac{\mathcal{B}\left({\Xi}_c^{+}\to \Lambda {\pi}^{+}\right)}{\mathcal{B}\left({\Xi}_c^{+}\to {\Xi}^{-}{\pi}^{+}{\pi}^{+}\right)}=\left(1.56\pm 0.14\pm 0.09\right)\%,\\ {}\frac{\mathcal{B}\left({\Xi}_c^{+}\to {\Sigma}^0{\pi}^{+}\right)}{\mathcal{B}\left({\Xi}_c^{+}\to {\Xi}^{-}{\pi}^{+}{\pi}^{+}\right)}=\left(4.13\pm 0.26\pm 0.22\right)\%.\end{array}} $Multiplying these values by the branching fraction of the normalization channel, $ \mathcal{B}\left({\Xi}_c^{+}\to {\Xi}^{-}{\pi}^{+}{\pi}^{+}\right)=\left(2.9\pm 1.3\right)\% $, the absolute branching fractions are determined to be$ {\displaystyle \begin{array}{c}\mathcal{B}\left({\Xi}_c^{+}\to p{K}_S^0\right)=\left(7.16\pm 0.46\pm 0.20\pm 3.21\right)\times {10}^{-4},\\ {}\mathcal{B}\left({\Xi}_c^{+}\to \Lambda {\pi}^{+}\right)=\left(4.52\pm 0.41\pm 0.26\pm 2.03\right)\times {10}^{-4},\\ {}\mathcal{B}\left({\Xi}_c^{+}\to {\Sigma}^0{\pi}^{+}\right)=\left(1.20\pm 0.08\pm 0.07\pm 0.54\right)\times {10}^{-3}.\end{array}} $The first and second uncertainties above are statistical and systematic, respectively, while the third ones arise from the uncertainty in $ \mathcal{B}\left({\Xi}_c^{+}\to {\Xi}^{-}{\pi}^{+}{\pi}^{+}\right) $..

We report measurements of the absolute branching fractions $\mathcal{B}\left({B}_{s}^{0}\to {D}_{s}^{\pm }X\right)$, $\mathcal{B}\left({B}_{s}^{0}\to {D}^{0}/{\overline{D} }^{0}X\right)$, and $\mathcal{B}\left({B}_{s}^{0}\to {D}^{\pm }X\right)$, where the latter is measured for the first time. The results are based on a 121.4 fb$^{−1}$ data sample collected at the Υ(10860) resonance by the Belle detector at the KEKB asymmetric-energy e$^{+}$e$^{−}$ collider. [...]