Nilpotent Symmetries for QED in Superfield Formalism

Abstract

In the framework of superfield approach, we derive the local, covariant, continuous and nilpotent (anti-)BRST and (anti-)co-BRST symmetry transformations on the U(1) gauge field $(A_{\mu })$ and the (anti-)ghost fields $((\bar{C})C)$ of the Lagrangian density of the two $(1+1)$-dimensional QED by exploiting the (dual-)horizontality conditions defined on the four $(2+2)$-dimensional supermanifold. The long-standing problem of the derivation of the above symmetry transformations for the matter (Dirac) fields $(\bar{\psi },\psi )$ in the framework of superfield formulation is resolved by a new set of restrictions on the $(2+2)$-dimensional supermanifold. These new physically interesting restrictions on the supermanifold owe their origin to the invariance of conserved currents of the theory. The geometrical interpretation for all the above transformations is provided in the framework of superfield formalism.

LaTeX file, 12 pages, title slightly changed, text altered, typos corrected, minor changes in equations (3.1), (3.7), (3.8) and (3.9), journal-ref given

References in corpus (2)

• Abelian 2-form gauge theory: special features
• Superfield Approach to (Non-)local Symmetries for One-Form Abelian Gauge Theory

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