2019/06/23 by Gianluca Inguglia, G. Inguglia, Inguglia, Gianluca
Physics and Astronomy · #Atomic and Subatomic Physics Research #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #hep-ex #hep-ph
paper · pdf · doi:10.48550/arxiv.1906.09566
6 pages, 5 figures. To appear in the proceedings of the XXXIII workshop of "Les Rencontres des Physique de la Vallee d'Aoste"
arxiv created 2019/06/23 · openalex publication_date 2019/06/23 · arxiv updated 2019/06/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The Belle II experiment at the SuperKEKB energy-asymmetric e+ e- collider is a substantial upgrade of the B factory facility at the Japanese KEK laboratory. The design luminosity of the machine is 8× 1035 cm-2s-1 and the Belle II experiment aims to record 50 ab-1 of data, a factor of 50 more than its predecessor. From February to July 2018, the machine has completed a commissioning run, achieved a peak luminosity of 5.5× 1033 cm-2s-1, and Belle II has recorded a data sample of about 0.5 fb-1. Main operation of SuperKEKB has started in March 2019. Already this early data set with specifically designed triggers offers the possibility to search for a large variety of dark sector particles in the GeV mass range complementary to the Large Hadron Collider (LHC) and dedicated low energy experiments; these searches will benefit from more data in the process of being accumulated. This talk will review the state of the dark sector searches at Belle II with a focus on the discovery potential of the early data, and show the first results.