Modified parton distributions and the HERA high-Q^2 anomaly

Details Modified parton distributions and the HERA high-Q^2 anomaly Modified parton distributions and the HERA high-Q^2 anomaly

1997-05-22

arxiv.org/abs/hep-ph/9705399v1

Phys.Lett. B408 (1997) 268-274

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages Latex with 1 EPSF figure

Scientific paper

10.1016/S0370-2693(97)00829-0

A recent proposal seeks to explain the anomaly in the HERA high-Q^2 neutral current e^+p data by modifying the parton distribution functions at moderate-to-high-x and large Q^2. We investigate the consequences of this proposal for the HERA high-Q^2 data itself, in the neutral current e^-p channel and especially in the charged current e^\pm p channels. We find that there are striking signatures in the charged current which already serve to rule out many possibilities, including the (symmetric) intrinsic charm hypothesis. For those not ruled out, interesting signals are predicted in e^-p scattering.

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