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A model for the u-d mass difference |
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| Authors: | M-A De Crombrugghe H Haut J Weyers |
| Institution: | Instituut voor Theoretische Fysica, Universiteit Leuven, Belgium;Institut de Physique Théorique, Université de Louvain, Belgium |
| Abstract: | Extending the conditions which lead to natural symmetries we show that md?mu can be made positive in an SU(2)L × SU(2)R × U(1) gauge model for the weak and electromagnetic interactions. |
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