@article{8a38e434eec943dcb195ff8174bab404,
title = "WIMP-nucleon cross-section results from the second science run of ZEPLIN-III",
abstract = "We report experimental upper limits on WIMP-nucleon elastic scattering cross sections from the second science run of ZEPLIN-III at the Boulby Underground Laboratory. A raw fiducial exposure of 1344 kg{dot operator}days was accrued over 319 days of continuous operation between June 2010 and May 2011. A total of eight events was observed in the signal acceptance region in the nuclear recoil energy range 7-29 keV, which is compatible with background expectations. This allows the exclusion of the scalar cross-section above 4.8×10 -8 pb near 50 GeV/c 2 WIMP mass with 90% confidence. Combined with data from the first run, this result improves to 3.9×10 -8 pb. The corresponding WIMP-neutron spin-dependent cross-section limit is 8.0×10 -3 pb. The ZEPLIN programme reaches thus its conclusion at Boulby, having deployed and exploited successfully three liquid xenon experiments of increasing reach.",
author = "Akimov, {D. Yu} and Ara{\'u}jo, {H. M.} and Barnes, {E. J.} and Belov, {V. A.} and A. Bewick and Burenkov, {A. A.} and V. Chepel and A. Currie and L. DeViveiros and B. Edwards and C. Ghag and A. Hollingsworth and M. Horn and Jones, {W. G.} and Kalmus, {G. E.} and Kobyakin, {A. S.} and Kovalenko, {A. G.} and Lebedenko, {V. N.} and A. Lindote and Lopes, {M. I.} and R. L{\"u}scher and P. Majewski and Murphy, {A. St J.} and F. Neves and Paling, {S. M.} and {Pinto da Cunha}, J. and R. Preece and Quenby, {J. J.} and L. Reichhart and Scovell, {P. R.} and C. Silva and Solovov, {V. N.} and Smith, {N. J.T.} and Stekhanov, {V. N.} and Sumner, {T. J.} and C. Thorne and Walker, {R. J.}",
note = "Funding Information: The UK groups acknowledge support from the Science & Technology Facilities Council (STFC) for the ZEPLIN-III project and for operation of the Boulby laboratory . LIP-Coimbra acknowledges financial support from Funda{\c c}{\~a}o para a Ci{\^e}ncia e a Tecnologia (FCT) through project grant CERN/FP/116374/2010 and postdoctoral grants SFRH/BPD/27054/2006 , /47320/2008 , /63096/2009 and /73676/2010 . ITEP acknowledge support from the Russian Foundation of Basic Research (grant 08-02-91851 KO_a ) and SC Rosatom (H.4e.45.90.11.1059 from 10.03.2011). We are also grateful for support provided jointly to ITEP and Imperial from the UK Royal Society . ZEPLIN-III was hosted by Cleveland Potash Ltd at the Boulby Mine and we thank CPL management and staff for their long-standing support. We also express our gratitude to the Boulby facility staff for their dedication. The University of Edinburgh is a charitable body registered in Scotland (SC005336).",
year = "2012",
month = mar,
day = "13",
doi = "10.1016/j.physletb.2012.01.064",
language = "English (US)",
volume = "709",
pages = "14--20",
journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",
issn = "0370-2693",
publisher = "Elsevier B.V.",
number = "1-2",
}