Search For New Physics at BABAR*
Using a full BABAR data sample of 426 fb−1, we present improved measurements of the ratio ℛ(D(∗)) = ℬ(B̅ → D(∗)τ−ν̅τ)/ ℬ(B̅ → D(∗)ℓℓ−ν̅ℓ), where ℓ is either electron or muon. We measure ℛ(D) = 0.440±0.058±0.042 and ℛ(D∗) = 0.332±0.024±0.018. These ratios exceed the Standard Model predictions by 2:0σ...
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| Hovedforfatter: | |
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| Format: | Artigo |
| Sprog: | Inglês |
| Udgivet: |
EDP Sciences
2013-05-01
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| Serier: | EPJ Web of Conferences |
| Online adgang: | http://dx.doi.org/10.1051/epjconf/20134915002 |
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