Effects of dark atom excitations

Abstract

New stable quarks and charged leptons may exist and be hidden from detection, as they are bound by Coulomb interaction in neutral dark atoms of composite dark matter. This possibility leads to fundamentally new types of indirect effects related to the excitation of such dark atoms followed by their electromagnetic de-excitation. Stable -2 charged particles, bound to primordial helium in O-helium (OHe) atoms, represent the simplest model of dark atoms. Here we consider the structure of OHe atomic levels which is a necessary input for the indirect tests of such composite dark matter scenarios, and we give the spectrum of electromagnetic transitions from the levels excited in OHe collisions.

Invited contribution to the special issue of Modern Physics Letters A "Indirect dark matter searches"

References in corpus (8)

• First Dark Matter Results from the XENON100 Experiment
• Exciting Dark Matter and the INTEGRAL/SPI 511 keV signal
• Dark Matter from new Technicolor Theories
• Towards Closing the Window on Strongly Interacting Dark Matter: Far-Reaching Constraints from Earth's Heat Flow
• Towards Working Technicolor: Effective Theories and Dark Matter
• Composite dark matter from a model with composite Higgs boson
• Strong Interactive Massive Particles from a Strong Coupled Theory
• Uranus's anomalously low excess heat constrains strongly interacting dark matter

Cited by in corpus (1)

• Introduction to the special issue of Modern Physics Letters A "Indirect dark matter searches"