The main purpose of the BES-III (Beijing Electron Spectrometer III) At the electron-positron collider BEPC-II (IHEP AN Peoples Republic of China, Beijing)
Is the conduct of accurate measurements in the region of production of tau-lepton pairs and charmonium resonances.
The experimental problems include the spectroscopy of light hadrons,
Studying the spectrum and transitions in the charmonium system, measuring the properties of D and Ds mesons, tau leptons, and the search for new states above the threshold of birth Particles with an open charm.
The BES-III experiment began work in 2009. Since then, a considerable amount of unique data has been accumulated In the region of production of charmonium resonances and charmed particles, On the basis of which many interesting physical results have already been obtained.
The most striking event was the discovery of charmonium-like states of Zc, which presumably consist of more than three quarks.
The resources of the JINR grid site are successfully used for processing BES-III jobs . Also for BES-III, LIT staff developed a Grid-monitoring the performance of a distributed data storage and processing system from the accelerator:
- A research ground for development
- In December 2013, a prototype monitoring system
- The first version of the monitoring system is fully integrated in DIRAC
Data management and file transfer service.
- A solution for the main data store in IHEP based on dCache-Luster
- An installation package for storage elements has been created, adapted for the BES-III infrastructure
- Support chinese specialists in the field of installation and administration of storage elements are organized
- The research and development of the data management service DIRAC