New observations in the BRST analysis of dynamical non-Abelian 2-form gauge theory

¹ Department of Physics, Centre of Advanced Studies, Banaras Hindu University - Varanasi-221 005, (U.P.), India
² DST Centre for Interdisciplinary Mathematical Sciences, Faculty of Science, Banaras Hindu University Varanasi-221 005, (U.P.), India

^a malik@bhu.ac.in, rudra.prakash@hotmail.com

Received: 4 January 2011
Accepted: 1 March 2011

Abstract

We generalize the usual gauge transformations connected with the 1-form gauge potential to the Becchi-Rouet-Stora-Tyutin (BRST) and anti-BRST symmetry transformations for the four (3+1)-dimensional (4D) topologically massive non-Abelian gauge theory that incorporates the famous (B ∧ F) term where there is an explicit topological coupling between 1-form and 2-form gauge fields. A novel feature of our present investigation is the observation that the (anti-)BRST symmetry transformations for the auxiliary 1-form field (K_μ) and 2-form gauge potential (B_0i) are not generated by the (anti-)BRST charges that are derived by exploiting all the relevant (anti-)BRST symmetry transformations corresponding to all the fields of the present theory. This observation is a new result because it is drastically different from the application of the BRST formalism to (non-)Abelian 1-form and Abelian 2-form as well as 3-form gauge theories.