Neutrino physics with multi-ton scale liquid xenon detectors

Baudis, L.; Ferella, A.; Kish, A.; Manalaysay, A.; Marrodán Undagoitia, T.; Schumann, Marc (2014). Neutrino physics with multi-ton scale liquid xenon detectors. Journal of cosmology and astroparticle physics, 1401(1), 044. Institute of Physics Publishing IOP 10.1088/1475-7516/2014/01/044

[img] Text
1309.7024v2.pdf - Submitted Version
Restricted to registered users only
Available under License Publisher holds Copyright.

Download (792kB) | Request a copy
[img] Text
1475-7516_2014_01_044.pdf - Published Version
Restricted to registered users only
Available under License Publisher holds Copyright.

Download (670kB) | Request a copy

We study the sensitivity of large-scale xenon detectors to low-energy solar neutrinos,
to coherent neutrino-nucleus scattering and to neutrinoless double beta decay. As
a concrete example, we consider the xenon part of the proposed DARWIN (Dark Matter
WIMP Search with Noble Liquids) experiment. We perform detailed Monte Carlo simulations
of the expected backgrounds, considering realistic energy resolutions and thresholds
in the detector. In a low-energy window of 2–30 keV, where the sensitivity to solar pp and
7Be-neutrinos is highest, an integrated pp-neutrino rate of 5900 events can be reached in a fiducial mass of 14 tons of natural xenon, after 5 years of data. The pp-neutrino flux could thus be measured with a statistical uncertainty around 1%, reaching the precision of solar model predictions. These low-energy solar neutrinos will be the limiting background to the dark matter search channel for WIMP-nucleon cross sections below ~2X 10-48 cm2 and WIMP masses around 50 GeV c 2, for an assumed 99.5% rejection of electronic recoils due to elastic neutrino-electron scatters. Nuclear recoils from coherent scattering of solar neutrinos will limit the sensitivity to WIMP masses below ~6 GeV c-2 to cross sections above ~4X10-45cm2. DARWIN could reach a competitive half-life sensitivity of 5.6X1026 y to the neutrinoless double beta decay of 136Xe after 5 years of data, using 6 tons of natural xenon in the central detector region.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Physics Institute > Laboratory for High Energy Physics (LHEP)

UniBE Contributor:

Schumann, Marc

Subjects:

500 Science > 530 Physics

ISSN:

1475-7516

Publisher:

Institute of Physics Publishing IOP

Language:

English

Submitter:

Jan Dirk Brinksma

Date Deposited:

01 Jun 2015 17:13

Last Modified:

28 Nov 2020 02:25

Publisher DOI:

10.1088/1475-7516/2014/01/044

BORIS DOI:

10.7892/boris.68741

URI:

https://boris.unibe.ch/id/eprint/68741

Actions (login required)

Edit item Edit item
Provide Feedback