Electroweak Chiral Lagrangian for $W'$ Boson

TL;DR

This paper develops a comprehensive electroweak chiral Lagrangian framework for W', Z', and a light Higgs boson within a specific gauge symmetry, including detailed bosonic and fermionic interactions, mixing, and phenomenological constraints.

Contribution

It provides the complete electroweak chiral Lagrangian up to order p^4 for W', Z', and Higgs bosons with detailed fermion interactions and phenomenological constraints.

Findings

Universal gauge boson and fermion mixing parameters derived.

Constraints from meson mixing and CP violation analyzed.

Complete bosonic and fermionic interaction terms provided.

Abstract

The complete list of electroweak chiral Lagrangian for W', Z' and a neutral light higgs with symmetry $SU(2)_1\otimes SU(2)_2\otimes U(1)$ is provided. The bosonic part is accurate up to order of $p^4$, the matter part involving various fermions representation arrangements includes dimension three Yukawa type and dimension four gauge type operators. The universal mixings and masses of gauge boson and fermion are given. Constraints from mass differences for $K^0-\bar{K}^0$, $B_d^0-\bar{B}_{d}^0$, $B_s^0-\bar{B}_{s}^0$ systems and indirect CP violation parameter $|\epsilon_K|$ for $K$ mesons are evaluated.