Pseudoscalar mediators: a WIMP model at the neutrino floor

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F18%3A00539058" target="_blank" >RIV/68378271:_____/18:00539058 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1088/1475-7516/2018/03/042" target="_blank" >https://doi.org/10.1088/1475-7516/2018/03/042</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1475-7516/2018/03/042" target="_blank" >10.1088/1475-7516/2018/03/042</a>

Result language
angličtina
Original language name
Pseudoscalar mediators: a WIMP model at the neutrino floor
Original language description
Due to its highly suppressed cross section (fermionic) dark matter interacting with the Standard Model via pseudoscalar mediators is expected to be essentially unobservable in direct detection experiments. We consider both a simplified model and a more realistic model based on an extended two Higgs doublet model and compute the leading one-loop contribution to the effective dark matter-nucleon interaction. This higher order correction dominates the scattering rate completely and can naturally, i.e. for couplings of order one, lead to a direct detection cross section in the vicinity of the neutrino floor. Taking the observed relic density and constraints from low-energy observables into account we analyze the direct detection prospects in detail and find regions of parameter space that are within reach of upcoming direct detection experiments such as XENONnT, LZ, and DARWIN.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10303 - Particles and field physics

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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