Comments on the high-Q2 HERA anomaly
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.
- Publication:
-
Physics Letters B
- Pub Date:
- June 1997
- DOI:
- 10.1016/S0370-2693(97)00371-7
- arXiv:
- arXiv:hep-ph/9703299
- Bibcode:
- 1997PhLB..402..367B
- Keywords:
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- High Energy Physics - Phenomenology;
- High Energy Physics - Experiment
- E-Print:
- 10 pages Latex with 1 EPSF figure