Speaker
Description
The Monte-Carlo simulation of the trigger detector performance and interaction trigger efficiency for Au + Au collisions in BM@N[1-2] experiment at energy of 4 A GeV was performed with a code DCM-QGSM[3] + GEANT4[4]. The Au ion fragmentation and detection of spectator neutrons by a neutron zero-degree calorimeter and charged nuclear fragments by a forward Cherenkov counter were studied with the aim to include this information to the fast interaction trigger providing more reliable selection of events by centrality.
[1] M Kapishin 2016 The fixed target experiment for studies of baryonic matter at the nuclotron (BM@N), Eur. Phys. J. A 52 (2016) 213.
[2] V I Yurevich, O I Batenkov, G N Agakichiev, V A Babkin, S N Basilev, D N Bogoslovsky, L G Efimov, S P Lobastov, I A Philippov and A A Povtoreyko, Beam tests of Cherenkov detector modules with picosecond time resolution for start and L0 trigger detectors of MPD and BM@N experiments 2015 Phys. Part. Nucl. Lett. 12 (2015) 778.
[3] V D Toneev , K K Gudima, Particle Emission In Light And Heavy Ion Reactions // Nucl. Phys. A. 1983. V. 400, P. 173-190.
[4]J Apostolakis, M Asai, A G Bogdanov, H Burkhardt, G Cosmo, S Elles, G Folger, V M Grichine, P Gumplinger, A Heikkinen et al., 2009 Geometry and physics of the Geant4 toolkit for high and medium energy applications Radiation Physics and Chemistry, 78 859-873
