DAFNE
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DAFNE or DAΦNE (Double Annular Φ Factory for Nice Experiments), is an electron-positron collider at the INFN Frascati National Laboratory in Frascati, Italy.[1][2] It consists of 2 accelerator rings, both approximately 100 meters in length. Since 1999 it has been colliding electrons and positrons at a center of mass energy of 1.02 GeV to create phi mesons (φ). 85% of these decay into kaons (K), whose physics is the subject of most of the experiments at DAFNE.
There have been five experiments at DAFNE:
- KLOE (K LOng Experiment), led by Juliet Lee-Franzini[3], which studied CP violation in kaon decays and rare kaon decays from 2000 to 2006[4]. This experiment was followed by the KLOE-2 experiment.
- FINUDA (FIsica NUcleare a DAFNE), studies the spectra and nonmesonic decays of hypernuclei containing lambda baryons (Λ). The hypernuclei are produced by negatively charged kaons (Script error: No such module "Subatomic particle".) striking a thin target.
- DEAR (DAFNE Exotic Atoms Research experiment), determines scattering lengths in atoms made from a kaon and a proton or deuteron.
- DAFNE Light Laboratory (DAΦNE-L) consists of 3 lines of synchrotron radiation emitted by DAFNE, a fourth is under construction.
- SIDDHARTA (SIlicon Drift Detectors for Hadronic Atom Research by Timing Application), aims to improve the precision measurements of X-ray transitions in kaon atoms studied at DEAR.
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References
- ^ Page Module:Citation/CS1/styles.css has no content."INSPIRE". inspirehep.net. Retrieved 2024-11-29.
- ^ Page Module:Citation/CS1/styles.css has no content."DAΦNE, THE ELECTRON POSITRON Φ-FACTORY AT INFN-FRASCATI" (PDF). 1995.
- ^ Page Module:Citation/CS1/styles.css has no content."Science". AAAS. doi:10.1126/science.284.5414.568b. Retrieved 2026-05-03.
- ^ Page Module:Citation/CS1/styles.css has no content.Franzini, Paolo; Moulson, Matthew (2006-11-23). "The Physics of DAΦNE and KLOE". Annual Review of Nuclear and Particle Science. 56: 207–251. arXiv:hep-ex/0606033. doi:10.1146/annurev.nucl.56.080805.140459. ISSN 0163-8998.
External links
- Accelerator division of Frascati National Laboratory (public, Italian)
- Accelerator division of Frascati National Laboratory (technical)
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