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Journal Articles Physics Letters B Year : 2010

Limits on inelastic dark matter from ZEPLIN-III

D. Yu. Akimov
  • Function : Author
H. M. Araujo
  • Function : Author
E. J. Barnes
  • Function : Author
V. A. Belov
  • Function : Author
A. Bewick
  • Function : Author
A. A. Burenkov
  • Function : Author
R. Cashmore
  • Function : Author
V. Chepel
  • Function : Author
A. Currie
  • Function : Author
D. Davidge
  • Function : Author
J.V. Dawson
T. Durkin
  • Function : Author
B. Edwards
  • Function : Author
C. Ghag
  • Function : Author
A. Hollingsworth
  • Function : Author
M. Horn
  • Function : Author
A. S. Howard
  • Function : Author
A. J. Hughes
  • Function : Author
W. G. Jones
  • Function : Author
G. E. Kalmus
  • Function : Author
A. S. Kobyakin
  • Function : Author
A. G. Kovalenko
  • Function : Author
V. N. Lebedenko
  • Function : Author
A. Lindote
  • Function : Author
I. Liubarsky
  • Function : Author
M. I. Lopes
  • Function : Author
R. Luscher
  • Function : Author
K. Lyons
  • Function : Author
P. Majewski
  • Function : Author
A. Stj. Murphy
  • Function : Author
F. Neves
  • Function : Author
S. M. Paling
  • Function : Author
J. Pinto da Cunha
  • Function : Author
R. Preece
  • Function : Author
J. J. Quenby
  • Function : Author
L. Reichhart
  • Function : Author
P. R. Scovell
  • Function : Author
C. Silva
  • Function : Author
V. N. Solovov
  • Function : Author
N. J. T. Smith
  • Function : Author
P. F. Smith
  • Function : Author
V. N. Stekhanov
  • Function : Author
T. J. Sumner
  • Function : Author
C. Thorne
  • Function : Author
L. de Viveiros
  • Function : Author
R. J. Walker
  • Function : Author

Abstract

We present limits on the WIMP-nucleon cross section for inelastic dark matter derived from the 2008 run of ZEPLIN-III. Cuts, notably on scintillation pulse shape and scintillation-to-ionisation ratio, give a net exposure of 63 kg.days in the range 20-80keV nuclear recoil energy, in which 6 events are observed. Upper limits on signal rate are derived from the maximum empty patch in the data. Under standard halo assumptions a small region of parameter space consistent, at 99% CL, with causing the 1.17 ton.year DAMA modulation signal is allowed at 90% CL: it is in the mass range 45-60 GeV with a minimum CL of 88%, again derived from the maximum patch. This is the tightest constraint on that explanation of the DAMA result yet presented using a xenon target.

Dates and versions

in2p3-00703940 , version 1 (04-06-2012)

Identifiers

Cite

D. Yu. Akimov, H. M. Araujo, E. J. Barnes, V. A. Belov, A. Bewick, et al.. Limits on inelastic dark matter from ZEPLIN-III. Physics Letters B, 2010, 692, pp.180-183. ⟨10.1016/j.physletb.2010.07.042⟩. ⟨in2p3-00703940⟩
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