# New Terms for the Compact Form of Electroweak Chiral Lagrangian

## TL;DR

This paper refines the electroweak chiral Lagrangian's compact form by adding missing chiral invariant terms, enhancing its ability to connect underlying theories with low-energy effective descriptions.

## Contribution

It introduces new chiral invariant terms to complete the compact form of the electroweak chiral Lagrangian, improving its theoretical framework.

## Key findings

- Added several new chiral invariant terms.
- Discussed contributions of new terms to the Lagrangian.
- Enhanced the completeness of the compact form.

## Abstract

The compact form of the electroweak chiral Lagrangian is a reformulation of its original form and is expressed in terms of chiral rotated electroweak gauge fields, which is crucial for relating the information of underlying theories to the coefficients of the low-energy effective Lagrangian. However the compact form obtained in previous works is not complete. In this letter we add several new chiral invariant terms to it and discuss the contributions of these terms to the original electroweak chiral Lagrangian.