Charmless B decays into three charged track final states

Using a data sample of 10.5 1/fb collected by the Belle detector, three-body charmless decays B+ --> K+h+h- have been studied. The following branching fractions have been obtained: Br(B+ --> K+pi-pi+) = (64.8+-10.0+-7.0) x 10**-6 and Br(B+ --> K+K-K+) = (36.5+-6.1+-5.5) x 10**-6. The upper limits for other combinations of charged kaons and pions have been placed. Analysis of the intermediate two-body states gives evidence for production of scalar resonances in charmless B decays.Comment: 4 pages, Proceedings of the 4th International Conference on B Physics & CP Violation, Ise-Shima, Japan, February 19 - 23, 200

Migrant Labour in the Russian Economy: a Burden or a Blessing?

The article discusses the potential threats and benefits of external labour migration for the Russian economy through establishing cause-effect relations between the migration processes and the current economic situation. The analysis of statistical data on the development of Russian regions and on the demographic, migration, and financial trends in the country allows us to assess the potential risks of using the labour of external migrants. External migration may damage the Russian economy: it may result in depreciation of the Russian rouble; a growing de cit in the balance of payments; and in an increasing loads on the country’s pension system. We should not forget, however, that external migration can also bring a number of benefits: it can rejuvenate the population and supply human resources to those Russian regions which experience the shortages of the workforce for blue-collar jobs. Moreover, migrants make contributions to the federal budget by paying fees for work patents. The state government may use the results of this research to improve its migration and labour policy and to develop a state program to stimulate external and internal migrants to find employment in workforce shortage areas. This research shows the connection between labour migration and economic activity of local population; reveals the factors of external labour migration; and analyzes the effect migration has on the host country

Measurement of phi_3 with Dalitz Plot Analysis of B+=>D(*)K(*)+ Decay

Results from the Belle and BaBar experiments on measurement of the weak angle phi_3 using a Dalitz plot analysis of the KSpi+pi- decay of the neutral D meson from the B+=>D(*)K(*)+ process are presented. The method employs the interference between D0 and D0bar to extract the angle phi_3, strong phase delta and the ratio r of suppressed and allowed amplitudes.Comment: 4 pages, 3 figures. To appear in the proceedings of the 7th International Conference on Hyperons, Charm And Beauty Hadrons (BEACH 2006), 2nd-8th July 2006, Lancaster, Englan

b \to ss\bar{d}$ in a Vector Quark Model

The rare decay $b\to ss\bar{d}$ is studied in a vector quark model by adding the contributions from exotic vector-like quarks. We find that the contribution from box diagrams amounts to $10^{-9}$ in the branching ratio, while the $Z$-mediated tree level contribution is negligible.Comment: LaTeX, 9 pages with 1 figur

Migrant labour in the Russian economy: a burden or a blessing?

The article discusses the potential threats and benefits of external labour migration for the Russian economy through establishing cause-effect relations between the migration processes and the current economic situation. The analysis of statistical data on the development of Russian regions and on the demographic, migration, and financial trends in the country allows us to assess the potential risks of using the labour of external migrants. External migration may damage the Russian economy: it may result in depreciation of the Russian rouble; a growing de cit in the balance of payments; and in an increasing loads on the country’s pension system. We should not forget, however, that external migration can also bring a number of benefits: it can rejuvenate the population and supply human resources to those Russian regions which experience the shortages of the workforce for blue-collar jobs. Moreover, migrants make contributions to the federal budget by paying fees for work patents. The state government may use the results of this research to improve its migration and labour policy and to develop a state program to stimulate external and internal migrants to find employment in workforce shortage areas. This research shows the connection between labour migration and economic activity of local population; reveals the factors of external labour migration; and analyzes the effect migration has on the host country