Probing the noncommutative standard model at hadron colliders

Abstract

We study collider signals for the noncommutative extension of the standard model using the Seiberg-Witten maps for $\mathrm{SU}(3{)}_{C}\ensuremath{\bigotimes}\mathrm{SU}(2{)}_{L}\ensuremath{\bigotimes}\mathrm{U}(1{)}_{Y}$ to first order in the noncommutativity parameters ${\ensuremath{\theta}}_{\ensuremath{\mu}\ensuremath{\nu}}$. In particular, we investigate the sensitivity of $Z\ensuremath{\gamma}$-production at the Tevatron and the LHC to the components of ${\ensuremath{\theta}}_{\ensuremath{\mu}\ensuremath{\nu}}$. We discuss the range of validity of this approximation and estimate exclusion limits from a Monte Carlo simulation.