Measurement of the energy dependence of the $e^+ e^{\mathstrut -}\to B\bar{B}$, ${B}\bar{B}{}^*$ and ${B}{}^*\bar{B}{}^*$ cross sections at Belle II

Sumitted to PubDB: 2023-03-21

Category: Physics / performance paper

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Principal Authors Alexander Bondar, Roman Mizuk, Sergey Privalov
Date 2024-10-15
Working group Quarkonium
Belle II Number BELLE2-PUB-PH-2023-016
Abstract We report measurements of the $e^+e^- \to B\bar{B}$, $B\bar{B}{}^*$, and $B^*\bar{B}{}^*$ cross sections at four energies, 10653, 10701, 10746 and 10805 MeV, using data collected by the Belle~II experiment. We reconstruct one $B$ meson in a large number of hadronic final states and use its momentum to identify the production process. In the first $2-5$ MeV above $B^*\bar{B}{}^*$ threshold, the $e^+e^- \to B^*\bar{B}{}^*$ cross section increases rapidly. This may indicate the presence of a pole close to the threshold.
ArXiv https://arxiv.org/abs/2405.18928
Inspire https://inspirehep.net/literature/2791218
DOI 10.1007/JHEP10(2024)114
Reference JHEP 10, 114 (2024)
Bibtex 
@article{Belle-II:2024niz,
    author = "Adachi, I. and others",
    collaboration = "Belle-II",
    title = "{Measurement of the energy dependence of the e$^{+}$e$^{−}${\textrightarrow}$ B\overline{B} $, $ B{\overline{B}}^{\ast } $, and $ {B}^{\ast }{\overline{B}}^{\ast } $ cross sections at Belle II}",
    eprint = "2405.18928",
    archivePrefix = "arXiv",
    primaryClass = "hep-ex",
    reportNumber = "Belle II Preprint 2024-016, KEK Preprint 2024-12",
    doi = "10.1007/JHEP10(2024)114",
    journal = "JHEP",
    volume = "10",
    pages = "114",
    year = "2024"
}
Journal JHEP

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