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Charge asymmetry in W + jets production at the LHC

  • Regular Article - Theoretical Physics
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Abstract

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.

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Authors and Affiliations

  1. Cavendish Laboratory, J.J. Thomson Avenue, Cambridge, CB3 0HE, UK

    Chun-Hay Kom & W. James Stirling

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  1. Chun-Hay Kom
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  2. W. James Stirling
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Correspondence to Chun-Hay Kom.

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Kom, CH., Stirling, W.J. Charge asymmetry in W + jets production at the LHC. Eur. Phys. J. C 69, 67–73 (2010). https://doi.org/10.1140/epjc/s10052-010-1353-z

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