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Abstract
The KLOE-2 experiment is steadily taking data since November 2014 at DAFNE, the Φ-factory in the Frascati National Laboratories. 3.5 fb−1 of integrated luminosity have been collected up to now, with an average rate of 10 pb−1/day. Performance of the detector, data taking conditions and data quality monitoring are briefly summarized.
Highlights
DAΦNE (Double Annular Φ-factory Nice Experiment) [1] is the last of a long tradition of electronpositron colliders realized at the Frascati National Laboratory of the Italian Institute for Nuclear Physics (INFN)
In 2008 DAΦNE has been upgraded with a deep change of the interaction region, implementing a large-Piwinski angle optics with crab waist, an innovative scheme developed in Frascati and tested here for the for the first time [5, 6]
Profiting from the improved performance in terms of luminosity, the KLOE detector has been upgraded with new detectors and started a second run as KLOE-2 at the end of 2014, with a refreshed physics program based on precise measurements achievable with DAΦNE increased intensity [7]
Summary
DAΦNE (Double Annular Φ-factory Nice Experiment) [1] is the last of a long tradition of electronpositron colliders realized at the Frascati National Laboratory of the Italian Institute for Nuclear Physics (INFN). It started its operations in 1999 and provided collisions for KLOE [2], DEAR [3]. In this period KLOE collected 2.5 fb−1 of integrated luminosity at 1019.4 MeV of energy, corresponding to the Φ peak, and additional 250 pb−1 at 1000 MeV of energy. The aim is to collect 5 fb−1 of integrated luminosity, enough to significantly increase the accuracy in the study, for instance, of KS , η and η rare decays, as well as to set new limits on CPT symmetry violation and searches for hidden particles
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