One-loop $\mathbf{\beta}$ function of noncommutative scalar $QED_{4}$

TL;DR

This paper calculates the one-loop beta function for noncommutative scalar QED, detailing the renormalization process and analyzing the effects of noncommutativity on the theory's renormalization constants.

Contribution

It provides the first complete one-loop renormalization and beta function calculation for noncommutative scalar QED, including all relevant vertex functions and noncommutative effects.

Findings

The one-loop beta function for noncommutative scalar QED is explicitly derived.

Noncommutative contributions significantly affect renormalization constants.

Comparison with commutative results highlights the impact of noncommutativity.

Abstract

In this paper, we consider the $\beta$ function at one-loop approximation for noncommutative scalar QED. The renormalization of the full theory, including the basic vertices, and the renormalization group equation are fully established. Next, the complete set of the one-loop diagrams corresponding to the first-order radiative corrections to the basic functions is considered: gauge, charged scalar and ghost fields self-energies, and three- and four-point vertex functions $\left<\phi^\dag \phi A\right>$ and $\left<\phi^\dag \phi A A\right>$, respectively. We pay special attention to the noncommutative contributions to the renormalization constants. To conclude, the one-loop $\beta$ function of noncommutative scalar QED is then computed and comparison to known results is presented.