Constraints on Electron-quark Contact Interactions
نویسنده
چکیده
In this talk, I summarize a global analysis on electron-quark contact interactions using the updated NC DIS data at HERA, Drell-yan production at the Tevatron, total hadronic cross sections at LEP, atomic parity violation measurement, low energy e-nucleon scattering data, and the ν-nucleon scattering data. The global data do not show any evidence for contact interactions. Thus, we obtain limits of 8–15 TeV on the compositeness scale, which are significantly better than those published by each individual experiment.
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