Table 1 Sources of uncertainty
From: Test of the universality of τ and μ lepton couplings in W-boson decays with the ATLAS detector
Source | Impact on R(τ/μ) |
|---|---|
Prompt \({d}_{0}^{\mu }\) templates | 0.0038 |
μprompt and μτ(→μ) parton shower variations | 0.0036 |
Muon isolation efficiency | 0.0033 |
Muon identification and reconstruction | 0.0030 |
μhad normalization | 0.0028 |
\(t\overline{t}\) scale and matching variations | 0.0027 |
Top pT spectrum variation | 0.0026 |
μhad parton shower variations | 0.0021 |
Monte Carlo statistics | 0.0018 |
Pile-up | 0.0017 |
μτ(→μ) and μhad \({d}_{0}^{\mu }\) shape | 0.0017 |
Other detector systematic uncertainties | 0.0016 |
Z + jet normalization | 0.0009 |
Other sources | 0.0004 |
B(τ → μντνμ) | 0.0023 |
Total systematic uncertainty | 0.0109 |
Data statistics | 0.0072 |
Total | 0.013 |
