Charge asymmetry in W + jets production at the LHC
Cavendish Laboratory, J.J. Thomson Avenue, Cambridge, CB3 0HE, UK
Published online: 19 June 2010
The charge asymmetry in W ±+ jets production at the LHC can serve to calibrate the presence of New Physics contributions. We study the ratio in the Standard Model for n≤4, paying particular attention to the uncertainty in the prediction from higher-order perturbative corrections and uncertainties in parton distribution functions. We show that these uncertainties are generally of order a few percent, making the experimental measurement of the charge asymmetry ratio a particularly useful diagnostic tool for New Physics contributions.
© Springer-Verlag / Società Italiana di Fisica, 2010