First Observation of the Decay 𝐵⁰ → 𝜓(2𝑆)𝜋⁰

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UDC.coleccionInvestigación
UDC.departamentoFísica e Ciencias da Terra
UDC.grupoInvFísica e Tecnoloxía Nuclear e Altas Enerxías (FiTNAE)
UDC.institutoCentroCIF - Campus Industrial de Ferrol
UDC.institutoCentroCITENI - Centro de Investigación en Tecnoloxías Navais e Industriais
UDC.journalTitlePhysical Review D
UDC.startPageArticle 031101(R)
UDC.volume93
dc.contributor.authorChobanova, Veronika
dc.contributor.authorDalseno, Jeremy
dc.contributor.authorKíesling, Christian M.
dc.contributor.authorAbdesselam, A.
dc.contributor.authorAdachi, Ichiro
dc.contributor.authorAihara, Hiroaki
dc.contributor.authorAsner, David M.
dc.contributor.authorAushev, Tagir
dc.contributor.authorAyad, Rachid
dc.contributor.authorBabu, V.
dc.date.accessioned2026-09-03T17:51:32Z
dc.date.available2026-09-03T17:51:32Z
dc.date.issued2016-02-23
dc.description.abstract[Abstract] We report a measurement of the 𝐵⁰ → 𝜓(2𝑆)𝜋⁰ branching fraction based on the full ϒ(4𝑆) data set of 772 × 10⁶ 𝐵𝐵 pairs collected by the Belle detector at the KEKB asymmetric-energy 𝑒⁺𝑒¯ collider. We obtain ℬ(𝐵⁰ → 𝜓(2𝑆)𝜋⁰) = (1.17 ± 0.17(stat) ± 0.08(syst)) × 10¯⁵. The result has a significance of 7.2 standard deviations and is the first observation of the decay 𝐵⁰ → 𝜓(2𝑆)𝜋⁰.
dc.identifier.citationChobanova, V., Dalseno, J., Kiesling, C., Abdesselam, A., Adachi, I., Aihara, H., Asner, D. M., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bahinipati, S., Bakich, A. M., Barberio, E., Behera, P., Bhardwaj, V., Bhuyan, B., Biswal, J., … Bobrov, A. (2016). First observation of the decay 𝐵⁰ → 𝜓(2𝑆)𝜋⁰. Physical Review D, 93(3), Artículo 031101(R). https://doi.org/10.1103/physrevd.93.031101
dc.identifier.doi10.1103/physrevd.93.031101
dc.identifier.issn2470-0029
dc.identifier.urihttps://hdl.handle.net/2183/49151
dc.language.isoeng
dc.publisherAmerican Physical Society
dc.relation.urihttps://doi.org/10.1103/physrevd.93.031101
dc.rights© American Physical Society
dc.rights.accessRightsopen access
dc.subjectBranching fraction
dc.subjectRare decays
dc.subjectBottom mesons
dc.titleFirst Observation of the Decay 𝐵⁰ → 𝜓(2𝑆)𝜋⁰
dc.typejournal article
dc.type.hasVersionAM
dspace.entity.typePublication
relation.isAuthorOfPublication5e0725c9-d6cc-4af7-8bd9-4a9a1c85c21f
relation.isAuthorOfPublication3663e0d5-59b6-4d7c-8544-d5a7271879bf
relation.isAuthorOfPublication.latestForDiscovery5e0725c9-d6cc-4af7-8bd9-4a9a1c85c21f

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