Dr Minni Singla (GSI)
The Silicon Tracking System (STS) is the central detector system of the CBM experiment. Its task is to perform track reconstruction and momentum determination for all charged particles created in beam-target collisions at SIS 100 and SIS 300 beam energies. The technical challenges to meet are a high granularity matching the high track densities, a fast self-triggering read-out coping interaction rates up to 10 MHz, and a low mass to yield high momentum resolution. We introduce the concept of the STS, being comprised of eight tracking stations employing double-sided silicon microstrip sensors on modular structures that keep the read-out electronics outside the physics aperture. The detector system acceptance covers polar angles between 2.5 and 25 degrees and will be operated in the 1 T field of a super conducting dipole magnet. The performance of the STS with respect to hit finding, track reconstruction and momentum resolution are shown based on simulation studies using a realistic geometry and detector response based on the evolving engineering and prototyping effort.
|On behalf of collaboration:||CBM|
Carmen Simons (GSI) Dr Christian Joachim Schmidt (GSI) Christian Sturm (GSI) Daniel Soyk (GSI) Hanna Malygina (GSI) Iurii Sorokin (GSI) Jochen Kunkel (GSI) Dr Johann Heuser (GSI) Jorge Sanchez Rosado (GSI) Jürgen Eschke (FAIR) Dr Minni Singla (GSI) Dr Olga Bertini (GSI) Pavel Larionov (GSI) Peter Senger (GSI) Dr Piotr Koczon (GSI) Pradeep Ghosh (GSI) Sudeep Chatterji (GSI) Tomas Balog (GSI) Uli Frankenfeld (GSI) Volker Friese (GSI Darmstadt) Volker Kleipa (GSI) Walter Müller (FAIR) Wolfgang Niebur (GSI)