Properties of scalar--isoscalar mesons from multichannel interaction analysis below 1800 MeV

Scalar-isoscalar mesons are studied using an unitary model in three channels: pi-pi, K-anti K and an effective 2pi-2pi. All the solutions, fitted to the pi-pi and K-anti K data, exhibit a wide f0(500), a narrow f0(980) and two relatively narrow resonances, lying on different sheets between 1300 MeV and 1500 MeV. These latter states are similar to the f0(1370) and f0(1500) seen in experiments at CERN. Branching ratios are compared with available data. We have started investigations of some crossing symmetry and chiral constraints imposed near the pi-pi threshold on the scalar-isoscalar, scalar-isotensor and P-wave pi-pi amplitudes.Comment: Talk given at XVth Particles and Nuclei Int. Conf. (PANIC99), Uppsala, Sweden, June 10-16, 1999; 4 pages, 3 figures, file espcrc1.sty include

Introduction

Although there has been vivid academic debate as to what extent Sovereign Wealth Funds (SWFs) are motivated by political reasons, it is rather clear that countries can use state-owned investment funds as a tool of their foreign policy. Even Barack Obama, during his initial presidential campaign in 2008 commented: “I am obviously concerned if these… sovereign wealth funds are motivated by more than just market consideration and that’s obviously a possibility”. This book looks at SWF activities in Central and Eastern Europe (CEE) to determine the main motives for SWF presence in CEE. Are the potential financial gains the only reason behind their investments? Are SWF activities in the region dangerous for the stability and security of the CEE countries? The book is pioneering analyses of SWFs behaviour in the region, based on empirical data collected from the Sovereign Wealth Fund Institute Transaction Database, arguably the most comprehensive and authoritative resource tracking SWF investment behaviour globally.Rozdział pochodzi z książki: Political Players? Sovereign Wealth Funds’ Investments in Central and Eastern Europe, T. Kamiński (ed.), Wydawnictwo Uniwersytetu Łódzkiego, Łódź 2017.This book was published in frames of project “Political significance of the Sovereign Wealth Funds’ investments in the Central and Eastern Europe”. The project was financed by the Polish National Science Centre (Decision no. DEC-2012/07/B/HS5/03797)

China's Regional Policy and the Influence of the EU Assistance

Firstly, a short outlook has been given on regional inequalities in China. Secondly, the EU assistance programmes and sectoral dialogue have been analysed. Finally, the major research problem - what are the limitations of the EU's assistance influence on China - has been investigated

Political Significance of Sovereign Wealth Funds

Although there has been vivid academic debate as to what extent Sovereign Wealth Funds (SWFs) are motivated by political reasons, it is rather clear that countries can use state-owned investment funds as a tool of their foreign policy. Even Barack Obama, during his initial presidential campaign in 2008 commented: “I am obviously concerned if these… sovereign wealth funds are motivated by more than just market consideration and that’s obviously a possibility”. This book looks at SWF activities in Central and Eastern Europe (CEE) to determine the main motives for SWF presence in CEE. Are the potential financial gains the only reason behind their investments? Are SWF activities in the region dangerous for the stability and security of the CEE countries? The book is pioneering analyses of SWFs behaviour in the region, based on empirical data collected from the Sovereign Wealth Fund Institute Transaction Database, arguably the most comprehensive and authoritative resource tracking SWF investment behaviour globally.Rozdział pochodzi z książki: Political Players? Sovereign Wealth Funds’ Investments in Central and Eastern Europe, T. Kamiński (ed.), Wydawnictwo Uniwersytetu Łódzkiego, Łódź 2017.This book was published in frames of project “Political significance of the Sovereign Wealth Funds’ investments in the Central and Eastern Europe”. The project was financed by the Polish National Science Centre (Decision no. DEC-2012/07/B/HS5/03797)

The Chinese Factor in Developingthe Grand Strategy of the European Union

Published in: "The Quandaries of China’s Domestic and Foreign Development".Dominik Mierzejewski ( Red), Wydawnictwo Uniwersytetu Łódzkiego, 2014‘Strategic partnership’ with China is often perceived as vague slogan. However, there are some points in which Chinese ‘grand strategy’ is surprisingly coherent with the European strategic vision. Both sides want to develop a multilateral world order, see peace as a precondition of development and focus their policy on non-military means. Both sides have common interests in such areas like the ones presented in this paper: energy security or stability in Africa. If the EU is to have comprehensive, grand strategy, rising China is one of the factors which force the EU to create one. Impossible to omit, difficult to cope with, more and more influential in every sphere of international relations - China seems to be one of the major forces that have an impact on European strategic discourse and strategic choices. That is why ‘Chinese factor’ seems to be crucial for any ‘strategy’ of the EU

Forward dispersion relations and Roy equations in pi-pi scattering

We review results of an analysis of pipi interactions in S, P and D waves for two-pion effective mass from threshold to about 1.4 GeV. In particular we show a recent improvement of this analysis above the K anti-K threshold using more data for phase shifts and including the S0 wave inelasticity from pipi -> K anti-K. In addition, we have improved the fit to the f2(1270) resonance and used a more flexible P wave parametrization above the K anti-K threshold and included an estimation of the D2 wave inelasticity. The better accuracy thus achieved also required a refinement of the Regge analysis above 1.42 GeV. We have checked that the pipi scattering amplitudes obtained in this approach satisfy remarkably well forward dispersion relations and Roy's equations.Comment: 6 pages, invited talk to the IV International Conference on Quarks and Nuclear Physics QNP06, Madrid 5th-10th June 200

Amplitudes Fitted to Experimental Data and to Roy's Equations

The scalar-isoscalar, scalar-isotensor and vector-isovector pi-pi amplitudes are fitted simultaneously to experimental data and to Roy's equations. The resulting amplitudes are compared with those fitted only to experimental data. No additional constraints for the pi-pi threshold behaviour of the amplitudes are imposed. Threshold parameters are calculated for the amplitudes in the three waves. Spectrum of scalar mesons below 1.8 GeV is found from the analysis of the analytical structure of the fitted amplitudes.Comment: 3 pages, 1 figure. Talk given at MESON 2004: 8th International Workshop on Meson Production, Properties and Interactions, Cracow, Poland, 4-8 Jun 2004. Submitted to Int.J.Mod.Phys.

Untapped Instrument. Sovereign Wealth Funds and Chinese policy toward the Central and Eastern European countries

Although there has been vivid academic debate as to what extent Sovereign Wealth Funds (SWFs) are motivated by political reasons, it is rather clear that countries can use state-owned investment funds as a tool of their foreign policy. Even Barack Obama, during his initial presidential campaign in 2008 commented: “I am obviously concerned if these… sovereign wealth funds are motivated by more than just market consideration and that’s obviously a possibility”. This book looks at SWF activities in Central and Eastern Europe (CEE) to determine the main motives for SWF presence in CEE. Are the potential financial gains the only reason behind their investments? Are SWF activities in the region dangerous for the stability and security of the CEE countries? The book is pioneering analyses of SWFs behaviour in the region, based on empirical data collected from the Sovereign Wealth Fund Institute Transaction Database, arguably the most comprehensive and authoritative resource tracking SWF investment behaviour globally.Rozdział pochodzi z książki: Political Players? Sovereign Wealth Funds’ Investments in Central and Eastern Europe, T. Kamiński (ed.), Wydawnictwo Uniwersytetu Łódzkiego, Łódź 2017.This chapter aims at looking at the role of Sovereign wealth funds (SWFs) in China’s policy toward Central and Eastern European (CEE) countries in the 21st century, especially since the enlargement of the European Union (EU) in 2004. During this time, we could observe an increase of Chinese interest in the region resulting in growing trade, investments and number of contacts on all levels. China has used a wide array of different instruments to achieve its goals in the region: from a big political project such as the “16+1 format” to an unprecedented frequency of contacts between Chinese provinces and their European counterparts (Kaczmarski, Jakóbowski 2015). Despite a visible growth of economic ties, Beijing presented a very limited will to use investments as a political instrument. Even if Chinese investments in CEE are booming, they are possibly less politically biased and more market-driven than those in other developing countries, like African ones.This book was published in frames of project “Political significance of the Sovereign Wealth Funds’ investments in the Central and Eastern Europe”. The project was financed by the Polish National Science Centre (Decision no. DEC-2012/07/B/HS5/03797)

Direct vs. final state tensor meson photoproduction - amplitude analysis

Tensor meson photoproduction is described as either a direct production process or a consequence of the final state \pi\pi interactions. We calculate the mass distributions for selected partial waves and confront our predictions with the measurements of the CLAS experiment. We also point out the structures in the photoproduction amplitudes which may result in observable effects able to indicate the dominant tensor meson photoporduction mechanism