Self-resonant dark matter
نویسندگان
چکیده
We present a novel mechanism for Sommerfeld enhancement dark matter interactions without the need light mediators. Considering model two-component with triple coupling, we find that one of particles leads to an $u$-channel resonance in elastic scattering. From sum ladder diagrams, obtain Bethe-Salpeter equation delay term and identify factor from scattering two components first time. discuss implications our results enhancing self-scattering annihilation.
منابع مشابه
Resonant Dark Matter
It is usually assumed that dark matter direct detection is sensitive to a large fraction of the dark matter (DM) velocity distribution. We propose an alternative form of dark matter-nucleus scattering which only probes a narrow range of DM velocities due to the existence of a resonance, a DM-nucleus bound state, in the scattering resonant dark matter (rDM). The scattering cross section becomes ...
متن کاملNonabelian dark matter with resonant annihilation
We construct a model based on an extra gauge symmetry, SU(2)X×U(1)B−L, which can provide gauge bosons to serve as weakly-interacting massive particle dark matter. The stability of the dark matter is naturally guaranteed by a discrete Z2 symmetry that is a subgroup of SU(2)X . The dark matter interacts with standard model fermions by exchanging gauge bosons which are linear combinations of SU(2)...
متن کاملSelf-Interacting Dark Matter
Spergel and Steinhardt have recently proposed the concept of dark matter with strong self-interactions as a means to address numerous discrepancies between observations of dark matter halos on subgalactic scales and the predictions of the standard collisionless dark matter picture. We review the motivations for this scenario and discuss some recent, successful numerical tests. We also discuss t...
متن کاملMirror Matter as Self Interacting Dark Matter
It has been argued that the observed core density profile of galaxies is inconsistent with having a dark matter particle that is collisionless and alternative dark matter candidates which are self interacting may explain observations better. One new class of self interacting dark matter that has been proposed in the context mirror universe models of particle physics is the mirror hydrogen atom ...
متن کاملBroadband and Resonant Approaches to Axion Dark Matter Detection.
When ultralight axion dark matter encounters a static magnetic field, it sources an effective electric current that follows the magnetic field lines and oscillates at the axion Compton frequency. We propose a new experiment to detect this axion effective current. In the presence of axion dark matter, a large toroidal magnet will act like an oscillating current ring, whose induced magnetic flux ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2021
ISSN: ['1127-2236', '1126-6708', '1029-8479']
DOI: https://doi.org/10.1007/jhep10(2021)239