The European Physical Journal C

, Volume 69, Issue 1–2, pp 67–73 | Cite as

Charge asymmetry in W + jets production at the LHC

  • Chun-Hay KomEmail author
  • W. James Stirling
Regular Article - Theoretical Physics


The charge asymmetry in W ±+ jets production at the LHC can serve to calibrate the presence of New Physics contributions. We study the ratio \(\sigma(W^{+}+n\mbox{ jets})/\sigma(W^{-}+n\mbox{ jets})\) 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.


Total Cross Section Parton Distribution Function Charge Asymmetry Lead Order Scale Choice 
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Copyright information

© Springer-Verlag / Società Italiana di Fisica 2010

Authors and Affiliations

  1. 1.Cavendish LaboratoryCambridgeUK

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