D* Production in Deep Inelastic Scattering at HERA

This paper presents measurements of D^{*\pm} production in deep inelastic scattering from collisions between 27.5 GeV positrons and 820 GeV protons. The data have been taken with the ZEUS detector at HERA. The decay channel $D^{*+}\to (D^0 \to K^- \pi^+) \pi^+$ (+ c.c.) has been used in the study. The $e^+p$ cross section for inclusive D^{*\pm} production with $5<Q^2<100 GeV^2$ and $y<0.7$ is 5.3 \pms 1.0 \pms 0.8 nb in the kinematic region {$1.3<p_T(D^{*\pm})<9.0$ GeV and $| \eta(D^{*\pm}) |<1.5$}. Differential cross sections as functions of p_T(D^{*\pm}), $\eta(D^{*\pm}), W$ and $Q^2$ are compared with next-to-leading order QCD calculations based on the photon-gluon fusion production mechanism. After an extrapolation of the cross section to the full kinematic region in p_T(D^{*\pm}) and $\eta$(D^{*\pm}), the charm contribution $F_2^{c\bar{c}}(x,Q^2)$ to the proton structure function is determined for Bjorken $x$ between 2 $\cdot$ 10$^{-4}$ and 5 $\cdot$ 10$^{-3}$.Comment: 17 pages including 4 figure

Observation of Scaling Violations in Scaled Momentum Distributions at HERA

Charged particle production has been measured in deep inelastic scattering (DIS) events over a large range of $x$ and $Q^2$ using the ZEUS detector. The evolution of the scaled momentum, $x_p$, with $Q^2,$ in the range 10 to 1280 $GeV^2$, has been investigated in the current fragmentation region of the Breit frame. The results show clear evidence, in a single experiment, for scaling violations in scaled momenta as a function of $Q^2$.Comment: 21 pages including 4 figures, to be published in Physics Letters B. Two references adde

Модель развития современного Китая: оценки, дискуссии, прогнозы

The book is devoted to a comprehensive analysis of the problems of development of modern China. The group of authors, covering almost all the leading divisions of the sinological profile of Moscow and St. Petersburg and represented by four generations of Russian researchers, as well as well-known Chinese researchers, analyzes the main dimensions of the modern model of China's development. It is recommended for politicians and diplomats, researchers of modern China, teachers and students of higher education institutions (Orientalists, regionalists, journalists, political scientists and international experts), as well as for a wide range of readers interested in modern foreign and domestic policy of the PRC.Книга посвящена комплексному анализу проблем развития современного Китая. Группа авторов, охватывающая практически все ведущие подразделения китаеведческого профиля Москвы и Петербурга и представленная четырьмя поколениями российских исследователей, а также известные Китайские исследователи, анализируют основные измерения современной модели развития КНР. Рекомендуется для политиков и дипломатов, исследователей современного Китая, преподавателей и студентов вузов (востоковедов, регионоведов, журналистов, политологов и международников), а также для широкого круга читателей, интересующихся современной внешней и внутренней политикой КНР