NA61/SHINE experiment upgrade with vertex detector for open charm measurements

14th International Conference on Strangeness in Quark Matter

Ali, Yasir^1 ; Staszel, Pawel^1

M. Smoluchowski Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Krakow, Poland^1

关键词: Feasibility studies;    Multiphase transport;    Particle transport;    Pb-Pb collisions;    Production yield;    Target proximity;    Track reconstruction;    Vertex detectors;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/509/1/012083/pdf
DOI  :  10.1088/1742-6596/509/1/012083

来源: IOP

【 摘 要 】

The feasibility study of direct open charm measurements by its decay into two daughter particles, pion and kaon, in central Pb-Pb collision at SPS energies of 158 AGeV and 40 AGeV, shows that such measurements are viable at NA61/SHINE experiment if it is supplemented with a dedicated Vertex Detector (VD). We use AMPT (A Multi-Phase Transport model) event generator to generate the physical input for simulation and employed GEANT4 application to describe particle transport through the experimental setup. The VD will allow for precise track reconstruction at the target proximity. The direct open charm measurements will be a challenging due to the low production yield and short life time of D0mesons. The obtained results are based on the predicted yields of D0meson by Hadron String Dynamic (HSD) model. This study also addresses the issue of VD optimization and the emphasis is put on the prospect of the development of a VD based on CMOS technology.