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Article overview
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Quark-Lepton Nonuniversality | Xiao-Yuan Li
; Ernest Ma
; | Date: |
2 Dec 2002 | Journal: | Braz.J.Phys. 34 (2004) 191-193 | Subject: | hep-ph | Affiliation: | ITP Beijing) and Ernest Ma (UC Riverside | Abstract: | There is new experimental evidence which may be interpreted as a small departure from quark-lepton universality. We propose to understand this as the result of a hierarchy of mass scales in analogy to $m_u, m_d << Lambda_{QCD}$ for strong isospin. We show $(G_F)^{NC}_{lq} < (G_F)^{CC}_{lq} < (G_F)^{CC}_{ll} < (G_F)^{NC}_{ll}$ in principle, but all are still approximately equal. New physics is predicted at the TeV scale. | Source: | arXiv, hep-ph/0301006 | Services: | Forum | Review | PDF | Favorites |
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