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New R values in 2-5 GeV from the BESII at BEPC | | Z.G. Zhao
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16 Dec 2000 | | Subject: | hep-ex | | Abstract: | We report preliminary $R$ values for all 85 energy points scanned in the energy region of 2-5 GeV with the upgraded Beijing Spectrometer (BESII) at the Beijing Electron Positron Collider (BEPC). The typical uncertainty on the R values we measured is about 7%. The new R values have a significant impact on the predicted mass of the Higgs coming from the global fit to the electroweak data, and will also contribute to the interpretation of the E821 g-2 experiment. | | Source: | arXiv, hep-ex/0012038 | | Services: | Forum | Review | PDF | Favorites | |
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