Title of article :
First measurement of the head–tail directional nuclear recoil signature at energies relevant to WIMP dark matter searches
Author/Authors :
Burgos، نويسنده , , S. and Daw، نويسنده , , E. and Forbes، نويسنده , , J. and Ghag، نويسنده , , C. S. Gold، نويسنده , , M. and Hagemann، نويسنده , , C. and Kudryavtsev، نويسنده , , V.A and Lawson، نويسنده , , T.B. and Loomba، نويسنده , , D. and Majewski، نويسنده , , P. and Muna، نويسنده , , D. and Murphy، نويسنده , , A. StJ. and Nicklin، نويسنده , , G.G. and Paling، نويسنده , , S.M. and Petkov، نويسنده , , A. and Plank، نويسنده , , S.J.S. and Robinson، نويسنده , , M. and Sanghi، نويسنده , , N. and Snowden-Ifft، نويسنده , , D.P. and Spooner، نويسنده , , N.J.C. and Turk، نويسنده , , J. and Tziaferi، نويسنده , , E.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2009
Pages :
6
From page :
261
To page :
266
Abstract :
We present first evidence for the so-called head–tail directional signature of neutron-induced nuclear recoil tracks at energies down to 1.5 keV/amu using the DRIFT-IIc dark matter detector. This regime is appropriate for recoils induced by Weakly Interacting Massive Particle (WIMPs) but one where the differential ionization is poorly understood. We show that the distribution of recoil energies and directions induced here by 252Cf neutrons matches well that expected from massive WIMPs. The results open a powerful new means of searching for a galactic signature from WIMPs.
Keywords :
Dark matter , WIMPs , Negative ion TPC , directionality , Boulby , Neutralino , drift
Journal title :
Astroparticle Physics
Serial Year :
2009
Journal title :
Astroparticle Physics
Record number :
1335365
Link To Document :
https://search.isc.ac/dl/search/defaultta.aspx?DTC=10&DC=1335365
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