# Junctions of mass-deformed nonlinear sigma models on the Grassmann manifold

## TL;DR

This paper investigates the structure of vacua and domain walls, including junctions, in mass-deformed nonlinear sigma models on Grassmann manifolds, with specific focus on cases where N_C equals 1, 2, or 3.

## Contribution

It provides a detailed analysis of vacua, walls, and junctions in these models, highlighting new configurations and their properties for different N_C values.

## Key findings

- Characterization of vacua and walls in the models.
- Identification of three-pronged junctions for N_C=1,2,3.
- Insights into the geometric structure of the models.

## Abstract

We study vacua and walls of the mass-deformed nonlinear sigma model on the Grassmann manifold $G_{N_F,N_C}=\frac{SU(N_F)}{SU(N_C)\times SU(N_F-N_C)\times U(1)}$ and discuss three-pronged junctions for $N_C=1,2,3$ in four dimensions.