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Dark Matter Processes

This page contains the production of Dark Matter via new s-channel mediators. Currently only vector-like mediator i.e. Z'^0 for Dirac DM is implemented. Note that the mediator in this case carries the PDG id 55.

Z'^0

This group currently contains only one subprocess.

DM:ffbar2Zp2XX On Off   (default = off)
Scattering f fbar →Z'^0 → X Xbar. Code 6001.

The couplings of the Z'^0 to quarks and leptons are be assumed universal, i.e. generation-independent. Currently only vector couplings are implemented. The choice of fixed axial and vector couplings implies a resonance width that increases linearly with the Z'^0 mass. Note that cross sections strongly depend on the choice of mediator and Dark Matter masses.

Here are the couplings

Zp:vq   (default = 0.1)
vector coupling of quarks.

Zp:vX   (default = 0.1)
vector coupling of the Dark Matter X particles. "?>