%0 Conference Paper
%A von Seggern, Jan Eike
%T Status of ALPS-II at DESY
%N DESY-PROC-2011-04
%C Hamburg
%I Deutsches Elektronen-Synchrotron, DESY
%M PUBDB-2016-01080
%M DESY-PROC-2011-04
%P 72-75
%D 2011
%X The light-shining-through-a-wall (LSW) experiment ALPS at DESY provides the current best lab-based bounds for WISP couplings. Based on this success, preparations for ALPS-II have started. The aim is to increase the sensitivity by three orders of magnitude to probe parameter regions with astrophysical hints for the existence of WISPs from white dwarf energy loss and the TeV transparency of the intergalactic medium. To reach this sensitivity, ALPS-II will be considerably longer, making use of 2 x 12 HERA dipole magnets. The laser power in the WISP-production region will be increased and a second optical cavity in the regeneration region will be constructed. Additionally, a very low-noise transition-edge photo-detector is in development. In a pre-experiment, it will be possible to probe the hidden-photon interpretation of the WMAP-7 excess in sterile neutrinos.
%B 7th Patras Workshop on Axions, WIMPs and WISPs
%C 27 Jun 2011 - 1 Jul 2011, Mykonos (Greece)
Y2 27 Jun 2011 - 1 Jul 2011
M2 Mykonos, Greece
%F PUB:(DE-HGF)8 ; PUB:(DE-HGF)15
%9 Contribution to a conference proceedingsInternal Report
%R 10.3204/DESY-PROC-2011-04/von_seggern_jan_eike
%U https://bib-pubdb1.desy.de/record/295132