Gespeichert in:
| Hauptverfasser: | , , , |
|---|---|
| Format: | Preprint |
| Veröffentlicht: |
2026
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| Schlagworte: | |
| Online-Zugang: | https://arxiv.org/abs/2604.01394 |
| Tags: |
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Inhaltsangabe:
- This paper presents a detailed description of a model-independent method for the direct measurement of the $Υ(4S) \to B^+ B^-$ and $Υ(4S) \to B^0 \bar{B}^0$ production fractions at $B$ factories. The method is based on counting single- and double-inclusive charmed meson production at the $Υ(4S)$ resonance, providing statistical tagging of $B^0\bar{B}^0$ and $B^+B^-$ events. A feasibility study indicates that a precision comparable to the current world average can be achieved without making any underlying assumptions, as the calculations rely solely on event yields.