Comments on the high-Q HERA anomaly
نویسندگان
چکیده
Taking the reported high-Q 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. Research supported in part by DOE grant DE-FG02-90ER40542, and by the W. M. Keck Foundation. Email: [email protected], [email protected], [email protected],
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