Comments on the high-Q2 HERA anomaly
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.
Physics Letters B
- Pub Date:
- June 1997
- High Energy Physics - Phenomenology;
- High Energy Physics - Experiment
- 10 pages Latex with 1 EPSF figure