Abstract
We analyze the low-energy Lagrangian of hadronic dark matter interaction with nucleons and leptons. The analysis was fulfilled within the framework of the effective meson-exchange model, which is based on dynamic realization of SU(3)-symmetry. Using this Lagrangian, we calculate the cross-section of low-energy scattering of nucleons on hadronic dark matter particles. Effective vertex of W-boson interaction with new hadrons is constructed and the cross-section of lepton scattering on dark matter particles is calculated.
Highlights
IntroductionThe problem of dark matter description inevitably leads to the Standard Model (SM) extension
The problem of dark matter description inevitably leads to the Standard Model (SM) extension.Usually, the dark matter (DM) candidates are considered as stable or long-lived massive neutral particles interacting weakly with the ordinary ones (WIMPs)
The main purpose of the DM investigation is the description of the processes of its interaction with ordinary matter and predictions of possible signals
Summary
The problem of dark matter description inevitably leads to the Standard Model (SM) extension. The Lagrangian of interaction is analyzed and represented in detail in the framework of the effective low-energy meson-exchange approach, which is based on dynamic realization of SU (3)-symmetry In this consideration, we take into account that heavy DM is cold and essentially non-relativistic the effective meson-exchange model can be applied for the description of the DM–nucleon strong interaction. We take into account that heavy DM is cold and essentially non-relativistic the effective meson-exchange model can be applied for the description of the DM–nucleon strong interaction The validity of this approach is restricted by the value of momentum transfer, q2 ≤ m2 , where m is the mass of light carrier of interaction in the intermediate state, m ∼ 1 GeV.
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