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Flavourful Z′ models for RK(∗)

Flavourful Z′ models for RK(∗)
Flavourful Z′ models for RK(∗)
We show how any flavour conserving $Z'$ model can be made flavour violating and non-universal by introducing mass mixing of quarks and leptons with a fourth family of vector-like fermions with non-universal $Z'$ couplings. After developing a general formalism, we focus on two concrete examples, namely a fermiophobic model, and an $SO(10)$ GUT model, and show how they can account for the anomalous $B$ decay ratios $R_K$ and $R_{K^*}$. A similar analysis could be performed for $B-L$ models, $E_6$ models, composite models, and so on.
hep-ph
1029-8479
King, Stephen F.
f8c616b7-0336-4046-a943-700af83a1538
King, Stephen F.
f8c616b7-0336-4046-a943-700af83a1538

King, Stephen F. (2017) Flavourful Z′ models for RK(∗). Journal of High Energy Physics, 2017 (08), [19]. (doi:10.1007/JHEP08(2017)019).

Record type: Article

Abstract

We show how any flavour conserving $Z'$ model can be made flavour violating and non-universal by introducing mass mixing of quarks and leptons with a fourth family of vector-like fermions with non-universal $Z'$ couplings. After developing a general formalism, we focus on two concrete examples, namely a fermiophobic model, and an $SO(10)$ GUT model, and show how they can account for the anomalous $B$ decay ratios $R_K$ and $R_{K^*}$. A similar analysis could be performed for $B-L$ models, $E_6$ models, composite models, and so on.

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More information

Accepted/In Press date: 27 July 2017
e-pub ahead of print date: 7 August 2017
Published date: August 2017
Additional Information: 21 pages, references added, typos corrected, to appear in JHEP
Keywords: hep-ph

Identifiers

Local EPrints ID: 413264
URI: http://eprints.soton.ac.uk/id/eprint/413264
ISSN: 1029-8479
PURE UUID: de6e37bd-f669-4545-9439-668df0c724af

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Date deposited: 18 Aug 2017 16:31
Last modified: 06 Oct 2020 17:24

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