# Dynamics of branes in Double Field Theory

## TL;DR

This paper constructs T-duality invariant Wess-Zumino terms for Dp-branes and NS 5-branes within Double Field Theory, incorporating mass parameters via generalized Scherk-Schwarz ansatz, and interprets branes as invariant objects in doubled space.

## Contribution

It introduces a T-duality invariant formulation of brane actions in Double Field Theory, including massive theories, using a generalized Scherk-Schwarz approach.

## Key findings

- Wess-Zumino terms invariant under T-duality are constructed.
- Mass parameters are incorporated through generalized Scherk-Schwarz ansatz.
- Branes are interpreted as invariant objects in the doubled space.

## Abstract

In this contribution the construction of the Wess-Zumino term for Dp-branes and NS 5-branes invariant under T-duality is described. The cases of the massless Type IIA/B and the massive Type IIA theories are covered. Mass parameter is introduced by generalized Scherk-Schwarz ansatz of O(10,10) spinor and tensor fields. The results lead to the picture where a given brane is understood as an invariant object rotated into the full doubled space.