Eur. Phys. J. C (2014) 74: 2846
https://doi.org/10.1140/epjc/s10052-014-2846-y

Regular Article - Theoretical Physics

Some -invariant variables: constructed of the scalars dilaton and axion

Department of Physics, Amirkabir University of Technology (Tehran Polytechnic), P.O.Box: 15875-4413, Tehran, Iran

^* e-mail: kamani@aut.ac.ir

Received: 29 August 2013
Accepted: 3 April 2014
Published online: 25 April 2014

Abstract

Using the dilaton scalar and axion pseudoscalar fields we construct a number of scalars and differential forms which are symmetric under the -subgroup of the group . These invariants enable us to establish various 10-dimensional invariant actions. Other invariants which are not independent from the previous ones will be detached.