First microscopic evaluation of spin-dependent WIMP-nucleus scattering off 183W

We perform the first consistent calculation of elastic-scattering and inelastic-scattering structure functions for spin-dependent WIMP-nucleus scattering off 183W in a microscopic nuclear-theory framework. The nuclear structure calculations are performed in the microscopic interacting boson-fermion...

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Bibliographic Details
Published inPhysics letters. B Vol. 816; p. 136275
Main Authors Pirinen, P., Kotila, J., Suhonen, J.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.05.2021
Elsevier
Subjects
Dark matter
Direct detection
Interacting boson-fermion model
Nuclear structure
Spin structure functions
WIMP
Interacting boson-fermion model
Direct detection
Nuclear structure
Dark matter
Spin structure functions
WIMP
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Summary:We perform the first consistent calculation of elastic-scattering and inelastic-scattering structure functions for spin-dependent WIMP-nucleus scattering off 183W in a microscopic nuclear-theory framework. The nuclear structure calculations are performed in the microscopic interacting boson-fermion model (IBFM-2). Our results show that while 183W is very insensitive to spin-dependent elastic scattering, the structure function for inelastic scattering is quite sizable at small momentum transfers. Moreover, to our knowledge 183W provides the first studied case where inelastic scattering can compete with elastic scattering as the primary detection signal.
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2021.136275