The high-Q^2 Hera anomaly and supersymmetric unification
高能物理 - 唯象学
2009-10-09 v2
摘要
We discuss an initial condition on the superpotential couplings of an SU(5) theory which allows the R-violating term L d^c Q but avoids the simultaneous presence of L L e^c + d^c d^c u^c. This same condition keeps under control the products of pairs of different couplings lambda_{ijk} L_i d^c_j Q_k, which are more strongly constrained by flavour-changing-neutral-current limits. In our view, this observation makes relatively more plausible the interpretation of the high-Q^2 Hera anomaly, if real, as caused by squark production.
引用
@article{arxiv.hep-ph/9704275,
title = {The high-Q^2 Hera anomaly and supersymmetric unification},
author = {Riccardo Barbieri and Zurab Berezhiani and Alessandro Strumia},
journal= {arXiv preprint arXiv:hep-ph/9704275},
year = {2009}
}
备注
4 pages, no figures. References and footnote added, misprints corrected