Sig.
Carl-Oscar Gullstroem
(Uppsala University)
16/10/12, 17:05
Decays of the π0 allows to search mediates gauge bosons of dark forces in the MeV range. The decay π 0 → e+ e−γ is sensitive to a "dark photon" that decays into an e+ e− pair. WASA-at-COSY has collected a 500k data sample to constrains the parameters of this hypothetical gauge boson. The rare decay π 0 → e+ e− might also probe physics beyond the standard model. The 3σ deviation between...
Prof.
Attila Krasznahorkay
(Inst. of Nucl. Res. of the Hung. Acad. of Sci. (ATOMKI), Head, Division of Nuclear Physics)
16/10/12, 17:40
In a recent series of papers the intriguing possibility was explored
that the cosmic dark matter consists of new elementary particles with
masses in the MeV range, which could be searched for in nuclear
physics laboratories. Such particles are not excluded by any obvious
laboratory measurements or astrophysical arguments. There are even
some experimental indications for a light neutral...