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Article
Report number arXiv:1209.0282 ; CERN-PH-EP-2012-237 ; LHCB-PAPER-2012-015 ; CERN-PH-EP-2012-237 ; LHCB-PAPER-2012-015
Title Measurement of the fraction of Υ(1S) originating from χb(1P) decays in pp collisions at s = 7 TeV
Author(s) LHCb Collaboration  Mostrar todos os 618 autores
Publication 2012
Imprint 06 Sep 2012
Number of pages 15
Note Comments: 15 pages, 3 figures
15 pages, 3 figures
In: JHEP 11 (2012) 031
DOI 10.1007/JHEP11(2012)031
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; LHCb
Free keywords QCD ; quarkonium ; heavy quark production ; experimental results
Abstract The production of χb(1P) mesons in pp collisions at a centre-of-mass energy of 7 TeV is studied using 32 pb1 of data collected with the LHCb detector. The χb(1P) mesons are reconstructed in the decay mode χb(1P)Υ(1S)γμ+μγ. The fraction of Υ(1S) originating from χb(1P) decays in the Υ(1S) transverse momentum range 6<pTΥ(1S)<15 Gev/c and rapidity range 2.0<yΥ(1S)<4.5 is measured to be (20.7±5.7±2.15.4+2.7)%, where the first uncertainty is statistical, the second is systematic and the last gives the range of the result due to the unknown Υ(1S) and χb(1P) polarizations.
Copyright/License publication: © 2012-2025 CERN (License: CC-BY-3.0)
preprint: © 2012-2025 CERN (License: CC-BY-3.0)



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Email contact: u.egede@imperial.ac.uk


 Record created 2012-09-06, last modified 2024-08-17


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