MadMax Mini Workshop

21 Nov 2016, 11:30 → 22 Nov 2016, 18:30 Europe/Berlin

The aim of this mini-workshop is to bring together institutes interested in performing a novel experiment for the search of dark matter QCD axions using the dielectric haloscope idea.

Participation is by invitation only. In order to receive an invitation, please contact Béla Majorovits (bela@mpp.mpg.de).

We want to bring all participants up to date about both, theoretical calculations as well as hardware activities performed so far. We want to discuss the further project plan and hope to attract collaborators for this exciting but challenging project.

There will be a participation fee of 50€, which can be paid either cash upon arrival or by bank transfer to the following account:

Max-Planck-Institut fur Physik
Deutsche Bank München
IBAN: DE60 7007 0010 0195 1300 43
Bic code: DEUTDEMMXXX
MADMAX K 1085 plus your name and institute

 

Paper Dielectric Haloscopes: A New Way to Detect Axion Dark Matter

Monday, 21 November

11:30 → 12:30 Lab tour

13:30 → 13:40 Welcome

Speaker: Allen Caldwell

13:40 → 16:00 Theory: Motivation - Foundations of experimental idea

Convener: Guy Moore

slides http://wwwgerda.mpp.mpg.de/files/MADMAX/madmax_motivation_raffelt.pdf

13:40 Axion landscape

Speaker: Georg Raffelt (MPP)

Slides http://wwwgerda.mpp.mpg.de/files/MADMAX/madmax_motivation_raffelt.pdf

14:15 Axion dark matter, scenarios, parameters, uncertainties

Speaker: Javier Redondo (University of Zaragoza)

Slides http://wwwgerda.mpp.mpg.de/files/MADMAX/madmax_scenarios_redondo.pdf

14:50 Principles of axion-photon conversion

Speaker: Frank Steffen (MPP)

Slides http://wwwgerda.mpp.mpg.de/files/MADMAX/madmax_principles_steffen.pdf

15:25 Theoretical modelling of dielectric haloscopes, boost factor calculations

Speaker: Millar Alex (MPP)

Slides http://wwwgerda.mpp.mpg.de/files/MADMAX/madmax_dielectric_haloscopemillar.pdf

16:00 → 16:20 Coffee Break

16:20 → 17:15 Theory: Motivation - Foundations of experimental idea

Convener: Georg Raffelt

slides http://wwwgerda.mpp.mpg.de/files/MADMAX/madmax_motivation_raffelt.pdf

16:20 Guided discussion

ISSUES ABOUT "THEORY OF THE EXPERIMENT" Influence of magnet length (e.g. is it enough to magnetize some fraction of disks?) Influence of beam shape Axion non-zero momenta: Photon emission angle variations Coherence issue for larger masses (>200 ueV) (de Broglie wavelength comparable to MADMAX size)

17:15 → 19:00 Experiment

Convener: Axel Lindner

17:15 The Cluster seed project: Hardware

Speaker: Bela Majorovits (MPP)

Slides madmax_seed_161121.pptx

17:30 Resonator response (transmission and reflection behavior)

Speaker: Olaf Reimann (MPP)

Slides http://wwwgerda.mpp.mpg.de/files/MADMAX/madmax_resonator_reimann.pptx

18:00 Algorithm to place discs

Speaker: Chris Moore (MPP)

Slides madmax_algorithm_moore_161122.pptx

18:20 Issues, ideas on disc tiling

Speaker: Bela Majorovits

Slides http://wwwgerda.mpp.mpg.de/files/MADMAX/madmax_tiles_majorovits.pptx

18:30 Deformation behavior of discs

Speaker: Cornelius Martens

Slides http://wwwgerda.mpp.mpg.de/files/MADMAX/madmax_meeting_mechanics_martens_161121.ppt http://wwwgerda.mpp.mpg.de/files/MADMAX/madmax_tiles_martens.pdf

18:45 Discussion

19:00 → 22:00 Dinner and discussions

Tuesday, 22 November

09:00 → 10:30 Experiment: Work done so far

Convener: Kramer Micheal

09:00 Experimental efforts at Saclay

Speaker: Pierre Brun (CEA Saclay)

Slides http://wwwgerda.mpp.mpg.de/files/MADMAX/madmax_saclay_efforts_brun_chevalier.pdf

09:30 Low noise amplification and real time digitization of RF signals for radio astronomical applications

Speaker: Gundolf Wieching (MPIfR)

Slides http://wwwgerda.mpp.mpg.de/files/MADMAX/madmax_low_noise_wieching.pdf

10:00 The receiver 10GHz-40GHz and DAQ: First measurements of fake axion and noise: Sensitivity predictions

Speaker: Olaf Reimann (MPP)

Slides http://wwwgerda.mpp.mpg.de/files/MADMAX/madmax_receiver_reimann.pptx

10:30 → 10:50 Coffee break

10:50 → 12:10 The Magnet

Convener: Laurent Chevalier

10:50 Magnet design Berkeley

Speaker: Lucas Brouwer (LBNL)

Slides http://wwwgerda.mpp.mpg.de/files/MADMAX/madmax_magnet_berkeley_brouwer.pptx

11:20 High Field Magnet Design at CEA Saclay for Axion Experiments

Speaker: Pierre Vedrine (CEA-IRFU Saclay)

Slides http://wwwgerda.mpp.mpg.de/files/MADMAX/madmax_magnet_CEASaclay.pptx

11:50 Magnet: design study and innovative partnership

Speaker: Bela Majorovits (MPP)

Slides http://wwwgerda.mpp.mpg.de/files/MADMAX/madmax_magnet_tende_majorovitsr.pdf

12:10 → 13:00 Next steps: what needs to be done?

Convener: Bela Majorovits

12:10 Project planning: work packages, interfaces, preliminary time schedules

Slides http://wwwgerda.mpp.mpg.de/files/MADMAX/madmax_project_planning.pptx

12:30 Discussion of open issues

Cryogenic-interfaces Tiling Precision

13:00 → 14:00 LUNCH

14:00 → 15:20 Institutes and Sites

Convener: Allen Caldwell

14:00 Statements about Interest of institutes

Slides

• http://wwwgerda.mpp.mpg.de/files/MADMAX/madmax_institutes_desy.pptx
• http://wwwgerda.mpp.mpg.de/files/MADMAX/madmax_institutes_MPIfR.pdf
• http://wwwgerda.mpp.mpg.de/files/MADMAX/madmax_institutes_mpp.pptx
• http://wwwgerda.mpp.mpg.de/files/MADMAX/madmax_institutes_Saclay.pdf
• http://wwwgerda.mpp.mpg.de/files/MADMAX/madmax_institutes_UHamburg.pdf

14:30 Site considerations, candidates

Speaker: Olaf Reimann (MPP)

Slides http://wwwgerda.mpp.mpg.de/files/MADMAX/madmax_site_reimann.pptx

14:50 Sites in France

Speaker: Thierry Lasserre

Slides http://wwwgerda.mpp.mpg.de/files/MADMAX/madmax_site_lasserre.pdf

15:05 Discussion on site requirements and issues

15:20 → 15:45 Coffe Break

15:45 → 17:15 Next steps: Structure of future cooperation, plans for collaboration

Convener: Thierry Lasserre

15:45 Discussion on next steps

Identify common interests of groups Define common workgin groups Working group to evaluate different technologies and their synergies Name of the project? Next meeting: Where, when?