# EXA2011

5-9 September 2011
Europe/Vienna timezone
Thanks to all participants and have a good and safe trip home!

## The efficiency of STS-CBM-ROOT for reconstructions of Lambda and Sigma+(1385) hyperons from the experimental and the UrQMD data in p+C reaction at 10 GeV/c

6 Sep 2011, 16:45
2h 5m
Aula (Austrian Academy of Sciences, Vienna)

### Aula

#### Austrian Academy of Sciences, Vienna

Sonnenfelsgasse 19 1010 Vienna Austria
Poster Instrumentation

### Speaker

Dr Petros Aslanyan (Joint Institute for Nuclear Research LHEP)

### Description

This experimental data for events with $\Lambda$ hyperons in p+C reaction at 10 GeV/c is compared to the UrQMD model as a first step that there will be one of basis for study of multi strange hyperons and exotica productions with high statistics in heavy nucleus collisions . The experimental data with $\Lambda$ hyperons was used as generator for GEANT - STS-ROOT what have been obtained on base of stereo photo from the 2-m propane bubble chamber with 4$\pi$ geometry for p + C reaction at momentum 10 GeV /c . By using of the STS-ROOT software for CBM (FAIR) with this experimental data we obtained efficiencies of reconstruction for $\Lambda$ and $\Sigma^{*+} (1385) hyperons. The experimental data was compared with the UrQMD model for basic kinematic parameters. Main part of events with$\Lambda$hyperons lost from low efficiencies of total momentum at p<2 GeV/c ($p_min$=0.6 GeV/c ) and$Z_v\$<4 cm . These analysis will allow to develop of new criteria, trigger ,methods and algorithms for effective study of exotic resonances and CBM properties with strangeness .

### Primary author

Dr Petros Aslanyan (Joint Institute for Nuclear Research LHEP)

### Presentation Materials

There are no materials yet.