The ψ(4040) at the future experiment

FAIR NExt generation of ScientistS 2013

Zotti, L.^1 ; Filippi, A.^1 ; Marcello, S.^1 ; Spataro, S.^1

Università Degli Studi di Torino, INFN Torino, Italy^1

关键词: Antiproton beams;    Background suppression;    Charmonium spectroscopy;    Fixed targets;    High-precision;    Micro-vertex detector;    Quantum numbers;    Still missing;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/503/1/012007/pdf
DOI  :  10.1088/1742-6596/503/1/012007

来源: IOP

【 摘 要 】

The P¯ANDA experiment will be carried out at the future FAIR facility, it will be a fixed target experiment, where antiproton beams, of unprecedented quality and intensity, will be used to study interactions on protons and on nuclei. P¯ANDA will be an excellent tool to investigate those final states which include short-lived particles. Since different charmonium states can be accessed in direct formation with all the available quantum numbers in pp annihilations, the charmonium spectroscopy is one of the main goal of the experiment. The P¯ANDA experiment represents a unique possibility to improve both statistics and precision of existing data and to further explore the physics in the charm quark sector. Indeed, an energy scan with high precision over the full charm spectrum is still missing and it will not be delivered by future experiments currently planned as upgrade of the existing facilities. A detailed description of the possibility to reconstruct the ψ(4040)→ D*+D*-at P¯ANDA, together with the study of the huge hadronic background suppression will be presented. The importance of the Micro-Vertex Detector for the reconstruction of D mesons decay will be showed.