Research articles

search articles

My Pages

Stat

Members: 3645
Articles: 2'501'711
Articles rated: 2609

19 April 2024

» arxiv » 0901.4348

Article overview

Limits on the spin-dependent WIMP-nucleon cross-sections from the first science run of the ZEPLIN-III experiment
V. N. Lebedenko ; H. M. Araujo ; E. J. Barnes ; A. Bewick ; R. Cashmore ; V. Chepel ; D. Davidge ; J. Dawson ; T. Durkin ; B. Edwards ; C. Ghag ; V. Graffagnino ; M. Horn ; A. S. Howard ; A. J. Hughes ; W. G. Jones ; M. Joshi ; G. E. Kalmus ; A. G. Kovalenko ; A. Lindote ; I. Liubarsky ; M. I. Lopes ; R. Luscher ; K. Lyons ; P. Majewski ; A. StJ. Murphy ; F. Neves ; J. Pinto da Cunha ; R. Preece ; J. J. Quenby ; P. R. Scovell ; C. Silva ; V. N. Solovov ; N. J. T. Smith ; P. F. Smith ; V. N. Stekhanov ; T. J. Sumner ; C. Thorne ; R. J. Walker ;
Date:	27 Jan 2009
Abstract:	We present new experimental constraints on the WIMP-nucleon spin-dependent elastic cross-sections using data from the first science run of ZEPLIN-III, a two-phase xenon experiment searching for galactic dark matter WIMPs based at the Boulby mine. Analysis of $sim$450 kg$cdot$days fiducial exposure revealed a most likely signal of zero events, leading to a 90%-confidence upper limit on the pure WIMP-neutron cross-section of $sigma_n=1.8 imes 10^{-2}$ pb at 55 GeV/$c^2$ WIMP mass. Recent calculations of the nuclear spin structure based on the Bonn CD nucleon-nucleon potential were used for the odd-neutron isotopes $^{129}$Xe and $^{131}$Xe. These indicate that the sensitivity of xenon targets to the spin-dependent WIMP-proton interaction is much lower than implied by previous calculations, whereas the WIMP-neutron sensitivity is impaired only by a factor of $sim$2.
Source:	arXiv, 0901.4348
Services:	Forum \| Review \| PDF \| Favorites

No review found.

Did you like this article?

This article or document is ...
important:
of broad interest:
readable:
new:
correct:
Global appreciation:

Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.

browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

ScienXe.org
» my Online CV
» Free

News, job offers and information for researchers and scientists:

home

contact

sitemap