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Discussion on upper limit of the precision for τ mass measurement


τ lepton is one of three chareged leptons in nature, the measurements of its mass have been performed since its discovery. The present relative accuracy is already at the level of 10?4; more factors are still being studied in order to increase the accuracy. However, the available techniques for analysis and expectable luminosity from e+e? collider indicate that the precision upper limit of τ mass is almost reached, which means that brand new approaches should be looked for if the great improvement is yearned for.
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Recommended references: X. H. Mo.(2017).Discussion on upper limit of the precision for τ mass measurement.[ChinaXiv:201703.00624] (Click&Copy)
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[V1] 2017-03-26 19:36:59 chinaXiv:201703.00624V1 Download
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