25 February 2019 to 1 March 2019
Budker INP
Asia/Novosibirsk timezone

Search for dark forces at KLOE-2

28 Feb 2019, 12:20
20m
Conference room

Conference room

Contributed Oral Dark sector Dark sector

Speaker

Dr Elena Perez del Rio (LNF-INFN)

Description

During the last years several Dark Sector Models have been proposed in order to address striking and pluzzing astrophysical observations which fail standard interpretations. In the minimal case a new vector particle, the so called dark photon or U-boson, is introduced, with small coupling with Standard Model particles. Also, the existence of a dark Higgs boson h’ is postulated, in analogy with the Standard Model, to give mass to the U-boson through the Spontaneous Symmetry Breaking mechanism. The discovery of such a Dark Force Mediator would belong to a new field of Physics Beyond the Standard Model. The KLOE experiment, working on the DAΦNE e+e- collider in Frascati, searched for the existence of the U-boson in a quite complete way, investigating several different processes and final states. Tight limits on the model parameters have been set at 90%CL. Further improvements are expected in terms of sensitivity and discovery potential with the new KLOE-2 detector working on the improved DAFNE e+e- collider, which has collected more than 5 fb−1.

Primary author

Dr Elena Perez del Rio (LNF-INFN)

Presentation Materials

Peer reviewing

Paper