# Dark Matter Nature

*Journal of Physics: Conference Series*1391 (1) (2019)

**Abstract**

The cosmological constant problem arises because the magnitude of vacuum energy
density predicted by quantum eld theory is about 120 orders of magnitude larger than the value
implied by cosmological observations of accelerating cosmic expansion. We pointed out that
the fractal nature of the quantum space-time with negative Hausdor- Colombeau dimensions
can resolve this tension. The canonical Quantum Field Theory is widely believed to break
down at some fundamental high-energy cuto and therefore the quantum
uctuations in the
vacuum can be treated classically seriously only up to this high-energy cuto. In this paper we
argue that Quantum Field Theory in fractal space-time with negative Hausdor-Colombeau
dimensions gives high-energy cuto on natural way. We argue that there exists hidden
physical mechanism which cancel divergences in canonical QED4;QCD4; Higher-Derivative
- Quantum-Gravity, etc. In fact we argue that corresponding supermassive Pauli-Villars ghost
elds really exists. It means that there exists the ghost-driven acceleration of the univers
hidden in cosmological constant. In order to obtain desired physical result we apply the
canonical Pauli-Villars regularization up to : This would t in the observed value of the
dark energy needed to explain the accelerated expansion of the universe if we choose highly
symmetric masses distribution between standard matter and ghost matter below that scale
;i.e., fs:m ()

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Archival date: 2019-12-14

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