Benjamin Schmidt
Information
|
|
Institute: EKP
Room: 106, Bld. 402 (CN)
Phone: +49(0)721 608 - 23549
Email: b.schmidt#kit.edu
PhD Thesis
"Background discrimination of EDELWEISS-III cryogenic Ge-detectors for dark matter search"
Finished on Apr 24th, 2015 with summa cum laude
The EDELWEIS-III experiment is a direct dark matter search experiment using cryogenic Ge detectors with dual signal readout in ionization and heat for particle identification and background suppression.
Within this thesis, a new data analysis framework has been developed.
It features an automatic database driven processing and improved ionization signal filtering.
A verification of the processing has been done and the focus of the thesis has been set on the analysis of surface backgrounds.
referee J. Bluemer
coreferee W. de Boer
advisor K. Eitel
Apr 2011 - Jan 2013: individual scholarship Landesgraduiertenförderung
Feb 2013 - Apr 2014: financed as KSETA fellow
May 2014 - Jun 2015: IKP PhD-position
KSETA Annual Reports
KSETA report 2013
KSETA report 2014
Publications (2015 -2011)
publications in refereed journals
- E. Armengaud et al. "Development and underground test of radiopure ZnMoO4 scintillating bolometers for the LUMINEU 0ν2β project ", JINST, 10, P05007 (2015)
- G. Angloher et al. "EURECA Conceptual Design Report", Physics of the Dark Universe, 3, pp.41–74 (2014)
- E. Armengaud et al. "Axion searches with the EDELWEISS-II experiment", JCAP 11, 067 (2013)
- E. Armengaud et al."Background studies for the EDELWEISS dark matter experiment", Astropart. Phys 47, 1 (2013)
- B. Schmidt et al. "Muon-induced background in the EDELWEISS dark matter search", Astropart. Phys. 44, 28 (2013)
- E. Armengaud et al. "Search for low-mass WIMPs with EDELWEISS-II heat-and-ionization detectors", Phys. Rev. D 86, 5, 051701 (2012)
- G.A. Cox et al. "A multi-tiered data structure and process management system based on ROOT and CouchDB", NIM A, 684, 63 (2012)
- Z. Ahmed et al. "Combined limits on WIMPs from the CDMS and EDELWEISS experiments", Phys. Rev. D, 84, 1 (2011)
- E. Armengaud et al. "Final results of theEDELWEISS-II WIMP search using a 4-kg array of cryogenic germanium detectors with interleaved electrodes", Phys. Let. B, 702, 5 (2011)
other publications
talks at international conferences
- SUSY 2013, 21st International Conference on Supersymmetry and Unification of Fundamental Interactions, ICTP Trieste (Aug, 26th - 31st, 2013)
"The EDELWEISS dark matter search: Results and Prospects" - Invisibles13 - neutrinos, dark matter & dark energy physics, Summer School and Workshop, Durham Univserity (July, 10th - 19th, 2013)
"The EDELWEISS DM search: Status and recent results" - Les Rencontres de Physique de la Vallee d'Aoste, La Thuile (Feb/Mar, 24th - 03rd, 2013)
The EDELWEISS DM search: Recent results and outlook for 2013
talks at other conferences
- Annual meeting of the German Physical Society (DPG), particle physics section FV-T, Wuppertal T 75.2: (Mar, 9th - 13th, 2015)
"Untergrundunterdrückung in EDELWEISS-III Detektoren" - KCETA symposium 2014, plenary talk, KIT (July 25, 2014)
"Suche nach Dunkler Materie: In der TV-Serie „The Big Bang Theory“ und in KCETA mit dem EDELWEISS Experiment" - Annual meeting of the German Physical Society (DPG), particle physics section FV-T, Mainz (Mar, 24th - 28th, 2014)
"Status und erste Resultate der Dark Matter Suche mit EDELWEISS-III " - Organization of the 1st "KData Coding and analysis workshop" at KIT, Karlsruhe (Dec, 9th - 12th, 2013):
Introductions to KData analysis tools and CouchDB in EDELWEISS - KSETA inauguration symposium, KIT (Feb 1st 2013)
"Direct Dark Matter search using cryogenic Ge-detecotrs" - HGF Midterm Evaluation POF-II Programme Astro, KIT (Nov, 26th - 27th, 2012):
Poster: "Muon-induced Signatures in Dark Matter Search" - Workshop "Data Analysis and Detector Technologies of the HAP Dark Universe", Burg Liebenzell (Nov 18th - 23rd 2012)
"Data analysis and background investigation in the EDELWEISS direct dark matter search" - Workshop ATP in Deutschland, DESY-Zeuthen (Sep, 19th - 21st, 2012)
Poster: "Muon-induced signatures in Dark Matter searches from EDELWEISS to EURECA" - The International School for AstroParticle Physics (ISAPP) - CMB and High Energy Physics, La Palma (Jul, 15th - 27th, 2012)
Poster: "Search for Dark Matter in the EDELWEISS-3 experiment" - KIT PhD Symposium - Boost your Performance, Karlsruhe KIT (Mar, 22nd, 2012)
Poster: "Direct Dark Matter search with the EDELWEISS experiment" - Annual meeting of the German Physical Society (DPG), particle physics section FV-T, Göttingen T108.6 (Feb/Mar, 27th - 8th, 2012)
"Status and first results of the EDELWEISS-3 Direct Dark matter search experiment" - The International School for AstroParticle Physics (ISAPP) - The dark side of the Universe, Heidelberg (Jul, 8th - 15th, 2011)
Poster: "Measurement of muon-induced background in the EDELWEISS Dark Matter search" - Annual meeting of the German Physical Society (DPG), particle physics section FV-T, Karlsruhe T87.2 (Mar/Apr, 28th - 1st, 2011)
"Messung des Myon-induzierten Untergrundes in EDELWEISS-II"
Teaching and science communication (2015 - 2011)
- summer 2015: Invited talk at the Astronomische Vereinigung Karlsruhe “Die Suche nach dunkler Materie: Von "The Big Bang Theory" zur Forschung am KIT”
- summer 2015: Science festival Karlsruhe "Effekte" (Jun, 30th, 2015): "Wissenschaft live - a live discussion with the general public from the EDELWEISS (and further) experiment control rooms"
- summer 2014: Supervision of a Bachelor student
Bachelor thesis: (working title)"Muon-Koinzidenzstudie mit EDELWEISS-3 Komssionsdaten" - Thomas-Mann-Gymnasium - KIT Kooperation, Vortrag am Gymnasium" (Nov, 29th, 2013), Karlsruhe:
"Dunkle Materie - Oder was Physiker unter den französischen Alpen suchen?" - Science festival Karlsruhe "Effekte" (Jun, 25th, 2013):
"Reality check: Dunkle Materie in der TV-Serie "The Big Bang Theory"" - summer 2013: Physikalisches Fortgeschrittenen-Praktikum:
"Elementarteilchen" and "Landee-Faktor" - summer 2013: Supervision of a Bachelor student
Bachelor thesis: "Vermessung der Auslesetotzeit des EDELWEISS-3 Myon-Veto-Systems" - summer 2012: Tutor Moderne Physik III (elemntary particle physics)
- summer 2012: Supervision of a DAAD-RISE summer student
Research project: "Measuring detector components for future underground Dark Matter searches"