A new system of STRAW chambers operating in vacuum for the NA62 experiment

10th International Conference on Kaon Physics

Potrebenikov, Yu^1

Joint Institute for Nuclear Research, Dubna, Russia^1

关键词: Branching ratio;    High resolution;    In-vacuum;    Rare decays;    Standard model;    Straw tubes;    Timing resolutions;    Tracking system;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/800/1/012047/pdf
DOI  :  10.1088/1742-6596/800/1/012047

来源: IOP

【 摘 要 】

Large 2.15 × 2.15 m2area straw tube chambers have been developed to meet the specific requirements of the NA62 experiment. The main goal of the NA62 experiment at the CERN SPS is to measure the branching ratio of the ultra-rare decay with 10% accuracy. This can be achieved by detecting about 100 Standard Model events with 10% background in 2 - 3 years of data taking. A low mass tracking system is necessary to achieve a high resolution on kinematic quantities while timing resolution is mandatory to match the outgoing pion with the incoming kaon. Design, construction and first performance are reported.