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Author (up) Bechtle, P. et al; Orero Canet, C.; Blanch C.; Irles, A. url  doi
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  Title A proposal for the LOHENGRIN experiment to search for dark sector particles at the ELSA Accelerator Type Journal Article
  Year 2025 Publication European Physical Journal C Abbreviated Journal Eur. Phys. J. C  
  Volume 85 Issue 5 Pages 600 - 29pp  
  Keywords  
  Abstract We present a proposal for a future light dark matter search experiment at the Electron Stretcher Accelerator ELSA in Bonn: Lohengrin. It employs the fixed-target missing momentum based technique for searching for dark-sector particles. The Lohengrin experiment uses a beam of electrons that is extracted from the ELSA accelerator and that is shot onto a thin target to produce mainly Standard Model bremsstrahlung and – in rare occasions – possibly new particles coupling feebly to the electron. A well motivated candidate for such a new particle is the dark photon, a new, possibly massive gauge boson arising from a new gauge interaction in a dark sector and mixing kinetically with the Standard Model photon. The Lohengrin experiment is estimated to reach sensitivity to couplings small enough to explain the relic abundance of dark matter in various models for dark photon masses between approximately 1 MeV and approximately 100 MeV.  
  Address [Bechtle, Philip; Bespin, Christian; Desch, Klaus; Dreiner, Herbi; Freyermuth, Oliver; Gauld, Rhorry; Gruber, Markus; Hajjar, Hazem; Hamer, Matthias; Heinrichs, Jan-Eric; Kaminski, Jochen; Klipphahn, Laney; Krueger, Hans; Lupberger, Michael; Proft, Dennis; Richarz, Leonie; Schiffer, Tobias; Schwaebig, Patrick; Schuermann, Martin] Rheinische Friedrich Wilhelms Univ Bonn, Phys Inst, Nussallee 12, D-53115 Bonn, Germany, Email: bechtle@physik.uni-bonn.de;  
  Corporate Author Thesis  
  Publisher Springer Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1434-6044 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:001499234200001 Approved no  
  Is ISI yes International Collaboration yes  
  Call Number IFIC @ pastor @ Serial 6691  
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