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arXiv · hep-ph/9703299

Comments on the high-$Q^2$ HERA anomaly

K. S. Babu·Christopher Kolda·John March-Russell·Frank Wilczek
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Abstract

Taking the reported high-Q^2 anomaly at HERA as a signal of new physics, we show that several independent considerations point towards s-channel leptoquark production as the most attractive interpretation. We argue that even this option is highly constrained by flavor-changing processes: the couplings must be accurately diagonal in the quark and lepton mass eigenstate basis and should preserve individual quark and lepton family numbers. We propose a dynamical mechanism that might produce this pattern; it has distinctive experimental consequences.

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K. S. Babu, Christopher Kolda, John March-Russell, Frank Wilczek. 1997-03-12. Comments on the high-$Q^2$ HERA anomaly. https://doi.org/10.1016/s0370-2693(97)00371-7

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