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| Format: | Preprint |
| Published: |
2026
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2601.16587 |
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| _version_ | 1866912843250532352 |
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| author | Polat, Léonard |
| author_facet | Polat, Léonard |
| contents | The BABAR experiment participates to the global endeavor for a precise prediction of the anomalous magnetic moment of the muon by evaluating the contribution from hadronic vacuum polarization, in particular through cross section measurements of hadronic final states from $e^+e^-$ collisions. After a first measurement in 2009 of the largest input that comes from the $e^+e^- \rightarrow π^+π^-(γ)$ cross section, we present preliminary results from a new study on 460 ${\rm fb}^{-1}$ of BABAR data, involving a blind and independent procedure. The results of the two analyses are shown to be consistent. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_16587 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | New precise measurement of the $e^+e^- \rightarrow π^+π^-(γ)$ cross section with BABAR Polat, Léonard High Energy Physics - Experiment The BABAR experiment participates to the global endeavor for a precise prediction of the anomalous magnetic moment of the muon by evaluating the contribution from hadronic vacuum polarization, in particular through cross section measurements of hadronic final states from $e^+e^-$ collisions. After a first measurement in 2009 of the largest input that comes from the $e^+e^- \rightarrow π^+π^-(γ)$ cross section, we present preliminary results from a new study on 460 ${\rm fb}^{-1}$ of BABAR data, involving a blind and independent procedure. The results of the two analyses are shown to be consistent. |
| title | New precise measurement of the $e^+e^- \rightarrow π^+π^-(γ)$ cross section with BABAR |
| topic | High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2601.16587 |