Monte Carlo study of gg->H+jets contribution to Vector Boson Fusion Higgs production at the LHC

The contribution of gg->H+jets production process to the vector boson fusion production of the Higgs boson, VV->H, at LHC was evaluated with the ALPGEN generator and the PYTHIA shower Monte Carlo including a jet-parton matching procedure. After the experimental like event selections applied at PYTHIA particle level, the contribution was found to be 4-5 % for a Higgs boson mass of 120 GeV

Discovery Reach of Charged MSSM Higgs Bosons at CMS

We review the 5 sigma discovery contours for the charged MSSM Higgs boson at the CMS experiment with 30/fb for the two cases M_H+ m_t. In order to analyze the search reach we combine the latest results for the CMS experimental sensitivities based on full simulation studies with state-of-the-art theoretical predictions of MSSM Higgs-boson production and decay properties. Special emphasis is put on the SUSY parameter dependence of the 5 sigma contours. The variation of $\mu$ can shift the prospective discovery reach in tan_beta by up to Delta tan_beta = 40.Comment: 3 pages, 2 figures, talk given at SUSY08, Seoul, Kore

Development of method for determination of beta-agonists content in meat and dairy products by enzyme immunoassay

The article presents the results of the development of methods for determining the content of beta-agonists in livestock products. The paper analyzes the issue of the use of hormones in the feed for farm animals, existing threats and risks to human health, determines the maximum allowable levels of clenbuterol residues and ractopamine in the animal products, describes the existing methods for determining the content of beta-agonists physical-chemical and chemical-biological methods. The objects of investigation were frozen beef slabs, beef liver, milk. The content of ractopamine and clenbuterol in the samples was determined by ELISA method. Based on the data basic the metrological characteristics of the determination of clenbuterol in animal products were established – the detectable concentration range from 0.04 to 2000 ng/kg, the relative standard deviation of repeatability 0.8% (meat), 0.7% (milk), the relative standard deviation of intermediate precision of 1.0% (meat), 0.9% (milk), and ractopamine – detectable concentration range from 0.02 to 8,100 ng/kg, the relative standard deviation of repeatability 0.3% (meat), 0.4% (beef liv er), the relative standard deviation of the interme-diate precision of 0.8% (meat) and 0.9% (beef liver ). Extended standard uncertainty measurements of clenbuterol and ractopamine did not exceed 1%. The results will be used to develop the methods for determining the content of beta -agonists by ELISA quality control and safety of animal products for human consumption

Summary of the CMS Discovery Potential for the MSSM SUSY Higgses

This work summarises the present understanding of the expected MSSM SUSY Higgs reach for CMS. Many of the studies presented here result from detailed detector simulations incorporating final CMS detector design and response. With 30 fb-1 the h -> gamma,gamma and h -> bb channels allow to cover most of the MSSM parameter space. For the massive A,H,H+ MSSM Higgs states the channels A,H -> tau,tau and H+ -> tau,nu turn out to be the most profitable ones in terms of mass reach and parameter space coverage. Consequently CMS has made a big effort to trigger efficiently on taus. Provided neutralinos and sleptons are not too heavy, there is an interesting complementarity in the reaches for A,H -> tau,tau and A,H -> chi,chi.Comment: 19 pages, 27 figure

One-dimensional modeling of relativistic collapse of a cloud

Построена численная модель релятивистского свободного коллапса сферически-симметричного облака пыли. Модель успешно протестирована с помощью аналитических решений и асимптотических соотношений.The numerical model of the relativistic free collapse of a spherically-symmetric dust cloud is developed. The model is successfully tested with the help of analytical solutions and asymptotic relations