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T: Fachverband Teilchenphysik

T 68: Neue Physik: Wimps, Monopole, Allgemeine Suchen

T 68.3: Vortrag

Mittwoch, 11. März 2015, 17:15–17:30, L.09.21 (HS 13)

Results and prospects of axion searches with the OSQAR and ALPS II experiment — Matthias Schott and •Christoph Weinsheimer — Johannes Gutenberg-Universität, Mainz, Deutschland

The Axion and axion-like particles (ALPs) are well motivated hypothetical Spin-0 bosons, naturally arising in many extensions of the Standard Model. At first introduced to solve the strong-CP problem by breaking an additional U(1) Pecci-Quinn symmetry, meanwhile several astrophysical observations hint to the ALPs sector as well.

In so called Light-Shining-through-Wall (LSW) experiments the effective diphoton vertex inherent to Axions and ALPs is exploited for direct searches. High power laser beams traversing strong magnetic fields are used to create and annihilate ALPs making them accessible in laboratory setups.

In this talk the latest results of the of the OSQAR experiment (CERN) are presented as well as prospects of near future enhancements by the ALPS II (DESY) experiment aiming for an improved sensitivity of 3 orders of magnitude.