The Noncommutative Standard Model at O(theta^2)

Abstract

We derive the most general Seiberg-Witten maps for noncommutative gauge theories in second order of the noncommutative parameter theta. Our results reveal the existence of more ambiguities than previously known. In particular, we demonstrate that some of these ambiguities enter observables like scattering cross sections and enlarge the parameter space of the noncommutative standard model beyond O(theta).

22 pages, LaTeX, 6 eps figures included, added several references and one clarification, accepted for publication in Phys. Rev. D

References in corpus (2)

• Non-commutative SU(N) gauge theories and asymptotic freedom
• Neutrino dipole moments and charge radii in noncommutative space-time

Cited by in corpus (5)

• Seiberg--Witten Maps to All Orders
• The absence of the 4$\psi$ divergence in noncommutative chiral models
• Remarks on the 2nd order Seiberg-Witten maps
• Renormalizability and Phenomenology of theta-expanded Noncommutative Gauge Field Theory
• Noncommutative Standard Model in Top Quark Sector