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Measurement of the [chi] b(3P) mass and of the relative rate of [chi] b1(1P) and [chi] b2(1P) production

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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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Main Authors: Aaij, Roel (Author) , Aquines Gutiérrez, Osvaldo (Author) , Bachmann, Sebastian (Author) , Bien, Alexander (Author) , Blouw, Johan (Author) , Britsch, Markward (Author) , Comerma-Montells, Albert (Author) , De Cian, Michel (Author) , Dordei, Francesca (Author) , Esen, Sevda (Author) , Färber, Christian (Author) , Gersabeck, Evelina (Author) , Grillo, Lucia (Author) , Grünberg, Oliver (Author) , Han, Xiaoxue (Author) , Hansmann-Menzemer, Stephanie (Author) , Heß, Miriam (Author) , Jäger, Andreas (Author) , Kolpin, Michael (Author) , Kreplin, Katharina (Author) , Krocker, Georg Alexander (Author) , Leverington, Blake (Author) , Marks, Jörg (Author) , Meißner, Marco (Author) , Neuner, Max (Author) , Nikodem, Thomas (Author) , Popov, Dmitry (Author) , Schmelling, Michael (Author) , Seyfert, Paul (Author) , Stahl, Marian (Author) , Stahl, Sascha (Author) , Uwer, Ulrich (Author) , Vesterinen, Mika (Author) , Voß, Christian (Author) , Waldi, Roland (Author) , Wandernoth, Sebastian (Author) , Wiedner, Dirk (Author) , Zhelezov, Alexey (Author)
Corporate Author: LHCb Collaboration (Author)
Format: Article (Journal)
Language:English
Published: October 14, 2014
In: Journal of high energy physics
Year: 2014, Issue: 10
ISSN:1029-8479
DOI:10.1007/JHEP10(2014)088
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1007/JHEP10(2014)088
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Author Notes:The LHCb collaboration
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Summary: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
Item Description:Im Titel ist "chi" als griechischer Buchstabe dargestellt
Gesehen am 09.07.2020
Physical Description:Online Resource
ISSN:1029-8479
DOI:10.1007/JHEP10(2014)088

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