On sum rules for semi-leptonic b → c and b → u decays
Abstract The semi-leptonic b → clν processes are receiving a lot of attention, as the lepton flavor universality (LFU) violation has been hinted by the measured ratios R D ∗ $$ {R}_{D^{\left(\ast \right)}} $$ = Γ(B → D (∗) τν)/Γ(B → D (∗) ℓν) for ℓ = e, μ. Recently, it has also been pointed out that...
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| Main Authors: | Wen-Feng Duan, Syuhei Iguro, Xin-Qiang Li, Ryoutaro Watanabe, Ya-Dong Yang |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2025-07-01
|
| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP07(2025)166 |
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