English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Guided by non-relativistic Effective Field Theory (EFT) we classify the mostgeneral spin-dependent interactions between a fermionic Weakly InteractingMassive Particle (WIMP) and nuclei, and within this class of models we discussthe viability of an interpretation of the DAMA modulation result in terms of asignal from WIMP elastic scatterings using a halo-independent approach. We findthat, although several relativistic EFT's can lead to a spin-dependent crosssection, in some cases with an explicit, non-negligible dependence on the WIMPincoming velocity, three main scenarios can be singled out in thenon-relativistic limit which approximately encompass them all, and that onlydiffer by their dependence on the transferred momentum. For two of themcompatibility between DAMA and other constraints is possible for a WIMP massbelow 30 GeV, but only for a WIMP velocity distribution in the halo of ourGalaxy which departs from a Maxwellian. This is achieved by combining asuppression of the WIMP effective coupling to neutrons (to evade constraintsfrom xenon and germanium detectors) to an explicit quadratic or quarticdependence of the cross section on the transferred momentum (that leads to arelative enhancement of the expected rate off sodium in DAMA compared to thatoff fluorine in droplet detectors and bubble chambers). For larger WIMP massesthe same scenarios are excluded by scatterings off iodine in COUPP.

Generalized spin-dependent WIMP-nucleus interactions and the DAMA modulation effect