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Updated: Jun 5, 2025

Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
Constraints on Covariant Dark-Matter-Nucleon Effective Field Theory Interactions from the First Science Run of the
J Aalbers1,2, D S Akerib1,2, A K Al Musalhi3
1SLAC National Accelerator Laboratory, Menlo Park, California 94025-7015, USA.
Abstract:
The LUX-ZEPLIN (LZ) experiment is a dual-phase xenon time project chamber operating in the Sanford Underground Research Facility in South Dakota, USA. We report on the results of a relativistic extension to the nonrelativistic effective field theory (NREFT) from a 5.5 t fiducial mass and 60 live days of exposure. We present constraints on couplings from covariant interactions arising from the coupling of vector, axial currents, and electric dipole moments of the nucleon to the magnetic and electric dipole moments of the weakly interacting massive particle which cannot be described by recasting previous results described by an NREFT. Using a profile-likelihood ratio analysis, in an energy region between 0 keV_{nr} to 270 keV_{nr}, we report 90% confidence level exclusion limits on the coupling strength of five interactions in both the isoscalar and isovector bases.
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