Yet Another Introduction to Dark Matter by Martin Bauer & Tilman Plehn

Author:Martin Bauer & Tilman Plehn
Language: eng
Format: epub
ISBN: 9783030162344
Publisher: Springer International Publishing

(4.24)

This mass matrix can be diagonalized with a combination of two block-diagonal rotations with the weak mixing matrix and an additional angle ξ,

(4.25)

giving

(4.26)

provided

(4.27)

For this brief discussion we assume for the mass ratio

(4.28)

and find for the physical masses

(4.29)

In addition to the dark matter mediator mass we also need the coupling of the new gauge boson V  to SM matter. Again, we start with the neutral currents for the not canonically normalized gauge fields and rotate them to the physical gauge bosons defined in Eq. (4.26),

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