Speaker
Description
The ALPS group at DESY has constructed a unique infrastructure for tests of fundamental physics consisting of two strings of 12 HERA dipole magnets. Each string provides 5.3 T magnetic fields over a length of roughly 100 m with cleanrooms in between the magnet strings and at the ends of the experiment. This environment is particularly well suited for experiments that use laser interferometry, such as the light-shining-through-a-wall experiment ALPS II, as the lasers can propagate unperturbed through the long, narrow magnet bore. A number of other experiments are in development to fully exploit both the potential of this infrastructure and the expertise that the group has acquired in interferometric sensing. These experiments include searches for vacuum magnetic birefringence and dichroism that may provide hints of new physics such as axions or string theory, as well as polarimetric searches for axions in the dark matter halo. In this talk I will give a brief introduction to the experimental infrastructure we have built along with our achievements in interferometric sensing, including an update on the status of ALPS II. Then I will discuss our new ideas for experiments that can be implemented within the existing infrastructure and their potential physics reach.
| Primary Abstract Topic | Experiment: Axions and Wave-Like-DM |
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