Warm Dark Matter from Higher-Dimensional Gauge Theories

Universe

Alessio Marrani¹  Michael Rios²  Sinziana Paduroiu³  David Chester⁴ 

[1] Centro Studi e Ricerche Enrico Fermi, 00184 Rome, Italy;Dyonica ICMQG, Los Angeles, CA 90032, USA;QOOSP Lab, Las Vegas, NV 89169, USA;Quantum Gravity Research, Los Angeles, CA 90290, USA;

关键词: warm dark matter;    fermions;    degrees of freedom;    higher-dimensional gauge theories;    M-theory;   

DOI  :  10.3390/universe7120462

来源: DOAJ

【 摘 要 】

Warm dark matter particles with masses in the keV range have been linked with the large group representations in gauge theories through a high number of species at decoupling. In this paper, we address WDM fermionic degrees of freedom from such representations. Bridging higher-dimensional particle physics theories with cosmology studies and astrophysical observations, our approach is two-folded, i.e., it includes realistic models from higher-dimensional representations and constraints from simulations tested against observations. Starting with superalgebras in exceptional periodicity theories, we discuss several symmetry reductions and we consider several representations that accommodate a high number of degrees of freedom. We isolate a model that naturally accommodates both the standard model representation and the fermionic dark matter in agreement with both large and small-scale constraints. This model considers an intersection of branes in D = 27 + 3 in a manner that provides the degrees of freedom for the standard model on one hand and 2048 fermionic degrees of freedom for dark matter, corresponding to a ∼2 keV particle mass, on the other. In this context, we discuss the theoretical implications and the observable predictions.

【 授权许可】

Unknown