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STT reconstruction efficiency in eta_c analysis [message #12017]

Thu, 16 June 2011 13:46

Dima Melnychuk
Messages: 213
Registered: April 2004
Location: National Centre for Nucle...

first-grade participant

From: *fuw.edu.pl

Hi all,

Returning to the problem which was discussed yesterday with STT reconstruction efficiency with the version of stt reconstruction code used on GRID, below I present plots with multiplicity of reconstructed tracks with version used on GRID and latest stt code from svn.

Just to remind it's decay eta_c->phi phi-> K+K-K+K-, i.e. in ideal case 4 charged tracks are expected.

On GRID:
index.php?t=getfile&id=6449&private=0