Measurement of the [chi] b(3P) mass and of the relative rate of [chi] b1(1P) and [chi] b2(1P) production
The production of χbmesons in proton-proton collisions is studied using a data sample collected by the LHCb detector, at centre-of-mass energies of √s=7 and 8 TeV and corresponding to an integrated luminosity of 3.0 fb−1. The χbmesons are identified through their decays to ϒ(1S)γ and ϒ(2S)γ using ph...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Körperschaft: | |
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
October 14, 2014
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| In: |
Journal of high energy physics
Year: 2014, Heft: 10 |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/JHEP10(2014)088 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1007/JHEP10(2014)088 |
| Verfasserangaben: | The LHCb collaboration |
| Zusammenfassung: | The production of χbmesons in proton-proton collisions is studied using a data sample collected by the LHCb detector, at centre-of-mass energies of √s=7 and 8 TeV and corresponding to an integrated luminosity of 3.0 fb−1. The χbmesons are identified through their decays to ϒ(1S)γ and ϒ(2S)γ using photons that converted to e+e− pairs in the detector. The relative prompt production rate of χb1(1P) and χb2(1P) mesons is measured as a function of the ϒ(1S) transverse momentum in the χbrapidity range 2.0 < y <4.5. A precise measurement of the χb(3P) mass is also performed. Assuming a mass splitting between the χb1(3P) and the χb2(3P) states of 10.5 MeV/c2, the measured mass of the χb1(3P) meson is |
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| Beschreibung: | Im Titel ist "chi" als griechischer Buchstabe dargestellt Gesehen am 09.07.2020 |
| Beschreibung: | Online Resource |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/JHEP10(2014)088 |