22,129 research outputs found
BdbServer++: A User Driven Data Location and Retrieval Tool
The adoption of Grid technology has the potential to greatly aid the BaBar
experiment. BdbServer was originally designed to extract copies of data from
the Objectivity/DB database at SLAC and IN2P3. With data now stored in multiple
locations in a variety of data formats, we are enhancing this tool. This will
enable users to extract selected deep copies of event collections and ship them
to the requested site using the facilities offered by the existing Grid
infrastructure. By building on the work done by various groups in BaBar, and
the European DataGrid, we have successfully expanded the capabilities of the
BdbServer software. This should provide a framework for future work in data
distribution.Comment: Paper based on the poster from the 2003 Computing in High Energy and
Nuclear Physics (CHEP03), La Jolla, Ca, USA, March 2003, 4 pages, LaTeX, 0
figures. PSN TUCP01
Behaviour of the potentials due to strangeness degree of freedom in He hypernucleus
Fully correlated study of He hypernucleus has been
performed with two- and three- baryon potentials. For the S=-2 sector, various
simulations of Nijmegen potential models have been used. We
investigate the role of every strength of the strange sector potentials on the
energy breakdown and present a crystal clear understanding of their interplay.
Consistency between He and He depends on the
space-exchange strength only. Investigation limits the strength of
simulated Nijmegen potential models. The study is a step
forward to determine all the strengths, to reslove A=5 anomaly and to search
for H in an authentic way.Comment: 4 pages, 1 figur
Quantization in Control Systems and Forward Error Analysis of Iterative Numerical Algorithms
The use of control theory to study iterative algorithms, which can be considered as dynamical systems, opens many opportunities to find new tools for analysis of algorithms. In this paper we show that results from the study of quantization effects in control systems can be used to find systematic ways for forward error analysis of iterative algorithms. The proposed schemes are applied to the classical iterative methods for solving a system of linear equations. The obtained bounds are compared with bounds given in the numerical analysis literature
- …