Abstract
We consider the structure of excited states and low-energy interaction of hadronic dark matter with photons, leptons, and nucleons. Description of the lowest excited levels is fulfilled in an analogy with the standard heavy-light mesons. Using the effective vertex of new heavy hadrons interaction with W-boson, we calculate cross-section of the lepton scattering on the dark matter particle. Analysis of strong low-energy interaction of new hadrons was carried out within the effective meson-exchange model based on dynamical realization of SU(3)-symmetry. A cross-section of nucleon scattering on the hadronic dark matter was also calculated using this model. The most essential phenomenological consequences of the low-energy dark matter interaction with leptons and nucleons are discussed.
Highlights
The most popular candidates for the hidden mass particles are massive neutral particles weakly interacting with the ordinary ones (WIMP)
In the scenario with the hadronic dark matter (DM), new particles consist of new heavy stable quark and the standard one
Main properties of new hadrons and their low-energy phenomenology were considered in [4,5,6]. As it was noted in this paper, repulsive asymptotic of the DM particles interaction with nucleons provides an agreement with the strong cosmochemical restrictions on concentrations of anomalous hydrogen and helium [6,7]
Summary
The most popular candidates for the hidden mass particles are massive neutral particles weakly interacting with the ordinary ones (WIMP). Main properties of new hadrons and their low-energy phenomenology were considered in [4,5,6] As it was noted in this paper, repulsive asymptotic of the DM particles interaction with nucleons provides an agreement with the strong cosmochemical restrictions on concentrations of anomalous hydrogen and helium [6,7]. Note that use of the effective meson-exchange model is reasonable because the heavy DM is cold and essentially non-relativistic at this time Validity of this approach is ensured by the fact that momentum transfer is small for the case of nucleon scattering on the cold. With the model Lagrangian, for the nucleon scattering on hadronic DM particles, we derived analytical expressions for the cross-section of the process; these cross-sections can be used in the study of the low-energy DM phenomenology.
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