Speaker
Dr
Igal Jaegle
(University of Hawaii)
Description
Many extensions of the Standard Model introduce an additional U(1) interaction,
which is mediated by a U(1) boson, often by a Higgs mechanism adding a dark
Higgs (or dark Higgses) to the models. This gauge boson, also known as the
"Dark Photon", typically has very weak coupling to Standard Model particles.
Experimental results from direct Dark Matter searches, (e.g. DAMA/LIBRA) and
other experimental anomalies (e.g. g-2), can be explained by such an additional interaction. Dark
gauge bosons are typically of low mass; of order MeV to GeV. The ideal tools to discover such
particles are therefore not high-energy collider experiments, but lower-energy high-luminosity
collider experiments like Belle and BaBar, or dedicated fixed target experiments, several of
which are planned or already under construction at JLAB (Newport News, USA) or at MAMI
(Mainz, Germany), for example. In Belle, the search of the dark photon focuses on the so-called
Higgs-strahlung channel, as proposed by Batell et al., where a dark photon and a dark Higgs are
produced. Preliminary results will be presented and discussed. B. Batell, M. Pospelov, and A.
Ritz arXiv:0903.0363 (2009).
Primary author
Dr
Igal Jaegle
(University of Hawaii)
