Search results for "spin structure functions"

showing 3 items of 3 documents

Dark-matter detection by elastic and inelastic LSP scattering on 129Xe and 131Xe

2008

Abstract We calculate the nuclear matrix elements involved in the elastic and inelastic scattering of the lightest supersymmetric particle (LSP) on the 129Xe and 131Xe dark-matter detector nuclei. This is the first time when both channels are addressed within the same unified microscopic nuclear framework, namely we perform large-scale shell-model calculations with a realistic two-body interaction to produce the participant nuclear wave functions. These wave functions successfully reproduce the spectroscopic data on the relevant magnetic moments and M1 decays. The tested wave functions are used to produce annual average detection rates for both the elastic and inelastic channels. It is foun…

Elastic scatteringPhysicsSpin structure functionsNuclear and High Energy PhysicsScatteringHigh Energy Physics::PhenomenologyNuclear shell modelCold dark matterInelastic scatteringDeep inelastic scatteringLightest Supersymmetric ParticleInelastic neutron scatteringNuclear shell modelNuclear physicsLSP-nucleus scatteringDetection ratesHigh Energy Physics::ExperimentWave functionPhysics Letters B
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First microscopic evaluation of spin-dependent WIMP-nucleus scattering off 183W

2021

We perform the first consistent calculation of elastic-scattering and inelastic-scattering structure functions for spin-dependent WIMP-nucleus scattering for 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. peerReviewed

Nuclear and High Energy PhysicsWIMPDirect detectionDark matterinteracting boson-fermion modelInelastic scatteringhiukkasfysiikka01 natural sciencesMolecular physicsdark matterInteracting boson-fermion modelMomentumpimeä aineWIMPspin structure functions0103 physical sciencesDark mattersirontaNuclear structure010306 general physicsSpin-½Elastic scatteringPhysicsSpin structure functions010308 nuclear & particles physicsScatteringNuclear structurevolframilcsh:QC1-999nuclear structuredirect detectionydinfysiikkalcsh:PhysicsPhysics Letters B
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Shell Model Description of Spin-Dependent Elastic and Inelastic WIMP Scattering off 119Sn and 121Sb

2022

In this work, we calculate the spin structure functions for spin-dependent elastic and inelastic WIMP scattering off 119Sn and 121Sb. Estimates for detection rates are also given. 119Sn and 121Sb are amenable to nuclear structure calculations using the nuclear shell model (NSM). With the possible exception of 201Hg, they are the only such nuclei still unexplored theoretically for their potential of inelastic WIMP scattering to a very low excited state. The present calculations were conducted using a state-of-the-art WIMP–nucleus scattering formalism, and the available effective NSM two-body interactions describe the spectroscopic properties of these nuclei reasonably well. Structure functio…

WIMPNuclear TheoryGeneral Physics and Astronomyhiukkasfysiikkadark matterpimeä ainedark matter; WIMP; direct detection; spin structure functions; nuclear structurespin structure functionsspin (kvanttimekaniikka)nuclear structuredirect detectionsirontaydinfysiikkaNuclear ExperimentUniverse
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