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| Hauptverfasser: | , , , |
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| Format: | Preprint |
| Veröffentlicht: |
2026
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| Online-Zugang: | https://arxiv.org/abs/2604.01394 |
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| _version_ | 1866912997572608000 |
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| author | Yasaveev, Murad Pakhlov, Pavel Peters, Nikolai Mufazalova, Alena |
| author_facet | Yasaveev, Murad Pakhlov, Pavel Peters, Nikolai Mufazalova, Alena |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_01394 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | A model independent method for measurement of $B^{\pm}$ and $B^0$ meson production fractions at $Υ(4S)$ Yasaveev, Murad Pakhlov, Pavel Peters, Nikolai Mufazalova, Alena High Energy Physics - Phenomenology 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. |
| title | A model independent method for measurement of $B^{\pm}$ and $B^0$ meson production fractions at $Υ(4S)$ |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2604.01394 |