Dark matter sensitivity of multi-ton liquid xenon detectors

Schumann, Marc; Baudis, Laura; Bütikofer, Lukas; Kish, Alexander; Selvi, Marco (2015). Dark matter sensitivity of multi-ton liquid xenon detectors. Journal of cosmology and astroparticle physics, 2015(10), 016-016. Institute of Physics Publishing IOP 10.1088/1475-7516/2015/10/016

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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-nucleon scattering interactions. Taking into account realistic backgrounds from the detector itself as well as from neutrinos, we examine the impact of exposure, energy threshold, background rejection efficiency and energy resolution on the dark matter sensitivity. With an exposure of 200 t x y and assuming detector parameters which have been already demonstrated experimentally, spin-independent cross sections as low as 2.5×10−49 cm2 can be probed for WIMP masses around 40 GeV/c2. Additional improvements in terms of background rejection and exposure will further increase the sensitivity, while the ultimate WIMP science reach will be limited by neutrinos scattering coherently off the xenon nuclei.

Item Type:

Journal Article (Original Article)

Division/Institute:

10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC)
08 Faculty of Science > Physics Institute > Laboratory for High Energy Physics (LHEP)

UniBE Contributor:

Schumann, Marc and Bütikofer, Lukas

Subjects:

500 Science > 530 Physics

ISSN:

1475-7516

Publisher:

Institute of Physics Publishing IOP

Language:

English

Submitter:

Marc Schumann

Date Deposited:

26 Apr 2016 11:21

Last Modified:

01 Nov 2016 02:30

Publisher DOI:

10.1088/1475-7516/2015/10/016

ArXiv ID:

1506.08309

BORIS DOI:

10.7892/boris.81220

URI:

https://boris.unibe.ch/id/eprint/81220

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