Limits on inelastic dark matter from ZEPLIN-III

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

doi:10.1016/j.physletb.2010.07.042

Limits on inelastic dark matter from ZEPLIN-III

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

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Abstract

We present limits on the WIMP-nucleon cross section for inelastic dark matter from a reanalysis of the 2008 run of ZEPLIN-III. Cuts, notably on scintillation pulse shape and scintillation-to-ionisation ratio, give a net exposure of 63kgday in the range 20-80 keV 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 1.17tonyr DAMA modulation signal is allowed at 90% CL: it is in the mass range 45-60 GeVc^-2 with a minimum CL of 87%, again derived from the maximum patch. This is the tightest constraint yet presented using xenon, a target nucleus whose similarity to iodine mitigiates systematic error from the assumed halo.

Original language	English (US)
Pages (from-to)	180-183
Number of pages	4
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	692
Issue number	3
DOIs	https://doi.org/10.1016/j.physletb.2010.07.042
State	Published - Aug 2010

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

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10.1016/j.physletb.2010.07.042

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Akimov, D., Araújo, H. M., Barnes, E. J., Belov, V. A., Bewick, A., Burenkov, A. A., Cashmore, R., Chepel, V., Currie, A., Davidge, D., Dawson, J., Durkin, T., Edwards, B., Ghag, C., Hollingsworth, A., Horn, M., Howard, A. S., Hughes, A. J., Jones, W. G., ... Walker, R. J. (2010). Limits on inelastic dark matter from ZEPLIN-III. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 692(3), 180-183. https://doi.org/10.1016/j.physletb.2010.07.042

@article{042ca80aad0b45dfab6e0064f66633b1,

title = "Limits on inelastic dark matter from ZEPLIN-III",

abstract = "We present limits on the WIMP-nucleon cross section for inelastic dark matter from a reanalysis of the 2008 run of ZEPLIN-III. Cuts, notably on scintillation pulse shape and scintillation-to-ionisation ratio, give a net exposure of 63kgday in the range 20-80 keV 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 1.17tonyr DAMA modulation signal is allowed at 90% CL: it is in the mass range 45-60 GeVc-2 with a minimum CL of 87%, again derived from the maximum patch. This is the tightest constraint yet presented using xenon, a target nucleus whose similarity to iodine mitigiates systematic error from the assumed halo.",

author = "D. Akimov and Ara{\'u}jo, {H. M.} and Barnes, {E. J.} and Belov, {V. A.} and A. Bewick and Burenkov, {A. A.} and R. Cashmore and V. Chepel and A. Currie and D. Davidge and J. Dawson and T. Durkin and B. Edwards and C. Ghag and A. Hollingsworth and M. Horn and Howard, {A. S.} and Hughes, {A. J.} and Jones, {W. G.} and Kalmus, {G. E.} and Kobyakin, {A. S.} and Kovalenko, {A. G.} and Lebedenko, {V. N.} and A. Lindote and I. Liubarsky and Lopes, {M. I.} and R. L{\"u}scher and K. Lyons and P. Majewski and A. Murphy 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 Smith, {P. F.} and Stekhanov, {V. N.} and Sumner, {T. J.} and C. Thorne and {de Viveiros}, L. and Walker, {R. J.}",

year = "2010",

month = aug,

doi = "10.1016/j.physletb.2010.07.042",

language = "English (US)",

volume = "692",

pages = "180--183",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier",

number = "3",

}

Akimov, D, Araújo, HM, Barnes, EJ, Belov, VA, Bewick, A, Burenkov, AA, Cashmore, R, Chepel, V, Currie, A, Davidge, D, Dawson, J, Durkin, T, Edwards, B, Ghag, C, Hollingsworth, A, Horn, M, Howard, AS, Hughes, AJ, Jones, WG, Kalmus, GE, Kobyakin, AS, Kovalenko, AG, Lebedenko, VN, Lindote, A, Liubarsky, I, Lopes, MI, Lüscher, R, Lyons, K, Majewski, P, Murphy, A, Neves, F, Paling, SM, Pinto da Cunha, J, Preece, R, Quenby, JJ, Reichhart, L, Scovell, PR, Silva, C, Solovov, VN, Smith, NJT, Smith, PF, Stekhanov, VN, Sumner, TJ, Thorne, C, de Viveiros, L & Walker, RJ 2010, 'Limits on inelastic dark matter from ZEPLIN-III', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 692, no. 3, pp. 180-183. https://doi.org/10.1016/j.physletb.2010.07.042

TY - JOUR

T1 - Limits on inelastic dark matter from ZEPLIN-III

AU - Akimov, D.

AU - Araújo, H. M.

AU - Barnes, E. J.

AU - Belov, V. A.

AU - Bewick, A.

AU - Burenkov, A. A.

AU - Cashmore, R.

AU - Chepel, V.

AU - Currie, A.

AU - Davidge, D.

AU - Dawson, J.

AU - Durkin, T.

AU - Edwards, B.

AU - Ghag, C.

AU - Hollingsworth, A.

AU - Horn, M.

AU - Howard, A. S.

AU - Hughes, A. J.

AU - Jones, W. G.

AU - Kalmus, G. E.

AU - Kobyakin, A. S.

AU - Kovalenko, A. G.

AU - Lebedenko, V. N.

AU - Lindote, A.

AU - Liubarsky, I.

AU - Lopes, M. I.

AU - Lüscher, R.

AU - Lyons, K.

AU - Majewski, P.

AU - Murphy, A.

AU - Neves, F.

AU - Paling, S. M.

AU - Pinto da Cunha, J.

AU - Preece, R.

AU - Quenby, J. J.

AU - Reichhart, L.

AU - Scovell, P. R.

AU - Silva, C.

AU - Solovov, V. N.

AU - Smith, N. J.T.

AU - Smith, P. F.

AU - Stekhanov, V. N.

AU - Sumner, T. J.

AU - Thorne, C.

AU - de Viveiros, L.

AU - Walker, R. J.

PY - 2010/8

Y1 - 2010/8

N2 - We present limits on the WIMP-nucleon cross section for inelastic dark matter from a reanalysis of the 2008 run of ZEPLIN-III. Cuts, notably on scintillation pulse shape and scintillation-to-ionisation ratio, give a net exposure of 63kgday in the range 20-80 keV 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 1.17tonyr DAMA modulation signal is allowed at 90% CL: it is in the mass range 45-60 GeVc-2 with a minimum CL of 87%, again derived from the maximum patch. This is the tightest constraint yet presented using xenon, a target nucleus whose similarity to iodine mitigiates systematic error from the assumed halo.

AB - We present limits on the WIMP-nucleon cross section for inelastic dark matter from a reanalysis of the 2008 run of ZEPLIN-III. Cuts, notably on scintillation pulse shape and scintillation-to-ionisation ratio, give a net exposure of 63kgday in the range 20-80 keV 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 1.17tonyr DAMA modulation signal is allowed at 90% CL: it is in the mass range 45-60 GeVc-2 with a minimum CL of 87%, again derived from the maximum patch. This is the tightest constraint yet presented using xenon, a target nucleus whose similarity to iodine mitigiates systematic error from the assumed halo.

UR - http://www.scopus.com/inward/record.url?scp=77955513867&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77955513867&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2010.07.042

DO - 10.1016/j.physletb.2010.07.042

M3 - Article

AN - SCOPUS:77955513867

SN - 0370-2693

VL - 692

SP - 180

EP - 183

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 3

ER -

Limits on inelastic dark matter from ZEPLIN-III

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