Observation of the Υ(1 3 D J ) bottomonium state through decays to π + π − Υ(1S)
Based on 122×106Υ(3S) events collected with the BABAR detector, we have observed the Υ(13DJ) bottomonium state through the Υ(3S)→γγΥ(13DJ)→γγπ+π−Υ(1S) decay chain. The significance for the J=2 member of the Υ(13DJ) triplet is 5.8 standard deviations including systematic uncertainties. The mass of th...
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| Hauptverfasser: | , , , , , , , , |
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| Körperschaft: | |
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
22 December 2010
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| In: |
Physical review. D, Particles, fields, gravitation, and cosmology
Year: 2010, Jahrgang: 82, Heft: 11, Pages: 1-7 |
| ISSN: | 1550-2368 |
| DOI: | 10.1103/PhysRevD.82.111102 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevD.82.111102 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.82.111102 
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| Verfasserangaben: | BABAR Collaboration |
| Zusammenfassung: | Based on 122×106Υ(3S) events collected with the BABAR detector, we have observed the Υ(13DJ) bottomonium state through the Υ(3S)→γγΥ(13DJ)→γγπ+π−Υ(1S) decay chain. The significance for the J=2 member of the Υ(13DJ) triplet is 5.8 standard deviations including systematic uncertainties. The mass of the J=2 state is determined to be 10 164.5±0.8(stat)±0.5(syst) MeV/c2. We use the π+π− invariant mass distribution to confirm the consistency of the observed state with the orbital angular momentum assignment of the Υ(13DJ). |
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| Beschreibung: | Im Titel ist die Zahl "3" hochgestellt und der Buchstabe "J" tiefgestellt. Plus- und das Minuszeichen sind hochgestellt BABAR Collaboration: P. del Amo Sanchez, A. Adametz, J. Marks, S. Schenk, U. Uwer, T. Hartmann, T. Leddig, H. Schröder, R. Waldi [und viele weitere] Gesehen am 23.08.2023 |
| Beschreibung: | Online Resource |
| ISSN: | 1550-2368 |
| DOI: | 10.1103/PhysRevD.82.111102 |