Publications (25)
Proportional scintillation in liquid xenon: demonstration in a single-phase liquid-only time projection chamber
Florian Tönnies, Adam Brown, Baris Kiyim +5
The largest direct dark matter search experiments to date employ dual-phase time projection chambers (TPCs) with liquid noble gas targets. These detect both the primary photons gen…
DELight: a Direct search Experiment for Light dark matter with superfluid helium
Belina von Krosigk, Klaus Eitel, Christian Enss +9
To reach ultra-low detection thresholds necessary to probe unprecedentedly low Dark Matter masses, target material alternatives and novel detector designs are essential. One such t…
DARWIN
Marc Schumann
DARWIN is a design-study for a next-to-next generation experiment to directly detect WIMP dark matter in a detector based on a liquid xenon/liquid argon two-phase time projection c…
Background Measurements in the Gran Sasso Underground Laboratory
Marijke Haffke, Laura Baudis, Tobias Bruch +5
The gamma background flux below 3000 keV in the Laboratori Nazionali del Gran Sasso (LNGS), Italy, has been measured using a 3" diameter NaI(Tl) detector at different underground p…
Prospects of charge signal analyses in liquid xenon TPCs with proportional scintillation in the liquid phase
Fabian Kuger, Julia Dierle, Horst Fischer +2
As liquid xenon TPCs increase in target mass while pursuing the direct detection of WIMP dark matter, the technical challenges arising due to their size call for new solutions and…
Cosmogenic activation of xenon and copper
Laura Baudis, Alexander Kish, Francesco Piastra +1
Rare event search experiments using liquid xenon as target and detection medium require ultra-low background levels to fully exploit their physics potential. Cosmic ray induced act…
Direct Detection of Dark Matter -- APPEC Committee Report
Julien Billard, Mark Boulay, Susana Cebrián +9
This Report provides an extensive review of the experimental programme of direct detection searches of particle dark matter. It focuses mostly on European efforts, both current and…
Dark matter sensitivity of multi-ton liquid xenon detectors
Marc Schumann, Laura Baudis, Lukas Bütikofer +2
We study the sensitivity of multi ton-scale time projection chambers using a liquid xenon target, e.g., the proposed DARWIN instrument, to spin-independent and spin-dependent WIMP-…
Dual-Phase Liquid Xenon Detectors for Dark Matter Searches
Marc Schumann
Dual-phase time projection chambers (TPCs) filled with the liquid noble gas xenon (LXe) are currently the most sensitive detectors searching for interactions of WIMP dark matter in…
Dark Matter Search with liquid Noble Gases
Marc Schumann
Dark matter detectors using the liquid noble gases xenon and argon as WIMP targets have evolved rapidly in the last decade and will continue to play a major role in the field. Due…
Operating a large-diameter dual-phase liquid xenon TPC in the unshielded PANCAKE facility
Julia Müller, Jaron Grigat, Robin Glade-Beucke +7
Future liquid-xenon (LXe) based observatories for rare processes, such as XLZD, require testing of large components and sub-assemblies in cryogenic liquid or gaseous xenon environm…
Reduction of Rn-induced Backgrounds in a Hermetic Dual-Phase Xenon Time Projection Chamber
Julia Dierle, Adam Brown, Horst Fischer +6
The continuous emanation of Rn from detector surfaces causes the dominant background in current liquid xenon time projection chambers (TPCs) searching for dark matter. A si…
Direct Detection of WIMP Dark Matter: Concepts and Status
Marc Schumann
The existence of dark matter as evidenced by numerous indirect observations is one of the most important indications that there must be physics beyond the Standard Model of particl…
Dark Matter 2014
Marc Schumann
This article gives an overview on the status of experimental searches for dark matter at the end of 2014. The main focus is on direct searches for weakly interacting massive partic…
Doberman: a modular and distributed slow control system for small- to medium-scale experiments
Jaron Grigat, Darryl Masson, Marc Schumann
We present Doberman (Detector OBsERving and Monitoring ApplicatioN), a lightweight, modular, and open-source slow control system designed for small-to medium-scale physics experime…
The XeBRA platform for liquid xenon time projection chamber development
Daniel Baur, Alexander Bismark, Adam Brown +13
XeBRA is a flexible cryogenic platform designed to perform research and development for liquid xenon detectors searching for rare events. Its extra-large outer cryostat makes it po…
Signal partitioning in superfluid He: a Monte Carlo approach
Francesco Toschi, Axel Brunold, Lea Burmeister +16
Superfluid He is an ideal candidate for the direct detection of light dark matter via nuclear recoils thanks to its low nuclear mass and the possibility to reach a low detect…
VUV Transmission of PTFE for Xenon-based Particle Detectors
Lutz Althüser, Sebastian Lindemann, Michael Murra +3
Liquid xenon (LXe) based detectors for rare event searches in particle and astroparticle physics are optimized for high xenon scintillation light collection and low background rate…
A versatile and light-weight slow control system for small-scale applications
Philipp Zappa, Lukas Bütikofer, Daniel Coderre +3
We present an open source slow control system for small and medium scale projects. Thanks to its modular and flexible design, where the various instruments are read and controlled…
Precision Measurements in Neutron Decay
Marc Schumann
We present new precision measurements of angular correlation coefficients in polarized neutron decay. We have obtained values for the electron asymmetry coefficient A, the neutrino…
Response of liquid xenon to Compton electrons down to 1.5 keV
Laura Baudis, Hrvoje Dujmovic, Christopher Geis +5
The response of liquid xenon to low-energy electronic recoils is relevant in the search for dark-matter candidates which interact predominantly with atomic electrons in the medium,…
Performance of the Hamamatsu R11410 Photomultiplier Tube in cryogenic Xenon Environments
Laura Baudis, Annika Behrens, Alfredo Ferella +4
The Hamamatsu R11410 photomultiplier, a tube of 3" diameter and with a very low intrinsic radioactivity, is an interesting light sensor candidate for future experiments using liqui…
Dark Matter 2013
Marc Schumann
This article reviews the status of the exciting and fastly evolving field of dark matter research as of summer 2013, when it was discussed at ICRC 2013 in Rio de Janeiro. It focuse…
PANCAKE: a large-diameter cryogenic test platform with a flat floor for next generation multi-tonne liquid xenon detectors
Adam Brown, Horst Fischer, Robin Glade-Beucke +11
The PANCAKE facility is the world's largest liquid xenon test platform. Inside its cryostat with an internal diameter of 2.75 m, components for the next generation of liquid xenon…
GeMSE: a Low-Background Facility for Gamma-Spectrometry at Moderate Rock Overburden
Diego RamÃrez GarcÃa, Daniel Baur, Jaron Grigat +6
The GeMSE (Germanium Material and meteorite Screening Experiment) facility operates a low-background HPGe crystal in an underground laboratory with a moderate rock overburden of 62…