Using data from the FOCUS (E831) experiment at Fermilab, we present a new measurement for the Cabibbo-suppressed decay modeD0 → K+K−π+π−. We measure: Γ(D0 → K+K−π+π−)/Γ(D0 → K−π−π+π+) = 0.0295 ± 0.0011 ± 0.0008 . An amplitude analysis has been performed in order to determine the resonant substructure of this decay mode. The dominant components are the decays D0 → K1(1270) +K−, D0 → K1(1400) +K−...

We investigate the possibility of observing strong interactions of longitudinally polarized weak vector bosons in the process γγ → ZZ at a photon linear collider. We make use of polarization of the photon beams and cuts on the decay products of the Z bosons to enhance the signal relative to the background of transversely polarized ZZ pairs. We find that the background overwhelms the signal unle...

2014 Starting from the Liouville equation we derive equations for density and concentration fluctuations in two-component polymeric liquids. An exact expression for the interdiffusion coefficient is obtained. As examples we consider mixtures of labelled molecules and the case of polymers solved in a low molecular weight liquid. The relation of the general formula to two widely used approximate ...

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Although it has showed that icaritin can apparently suppress growth of HCC by reducing the level of AFP, the intrinsic mechanism remains unclear. In this study, we explored the possible mechanism of miRNAs on post-transcriptional regulation of AFP gene, as well as the effects of HBV infection and icaritin in hepatoma cells. The results showed that miR-620, miR-1236 and miR-1270 could bind targe...

The present work investigates the Collision Induced Absorption (CIA) bands of oxygen that occur at 1065 and 1270 nm from solar occultation data obtained with the spaceborne spectrometer SCIAMACHY. The effort is motivated by the interest in these two strong CIA bands in atmospheric research and the paucity of data on them under realistic atmospheric conditions. The observing geometry provides lo...