Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/58753
Title: Measurement of the fraction of Υ(1S) originating from χb(1P) decays in pp collisions at s√=7 TeV
Author: Abellan Beteta, Carlos
Calvo Gómez, M.
Camboni, Alessandro
Comerma Montells, Albert
Domingo Bonal, F.
Garrido Beltrán, Lluís
Gascón Fora, David
Grabalosa Gándara, Marc
Graciani Díaz, Ricardo
Graugés Pous, Eugeni
Lopez Asamar, E.
Pérez-Calero Yzquierdo, Antonio
Picatoste Olloqui, Eduardo
Pie Valls, B. (Blai)
Potterat, Cédric
Puig Navarro, Albert
Roselló, M.
Ruiz, Hugo (Ruiz Pérez)
Vázquez Gómez, R.
Vilasis-Cardona, X.
LHCb Collaboration
Keywords: Hadrons
Gran Col·lisionador d'Hadrons
Teoria quàntica
Gravitació
Teoria quàntica de camps
Hadrons
Large Hadron Collider (France and Switzerland)
Quantum theory
Gravitation
Quantum field theory
Issue Date: Sep-2012
Publisher: Springer Verlag
Abstract: The production of χb(1P ) mesons in pp collisions at a centre-of-mass energy of 7 TeV is studied using 32 pb−1 of data collected with the LHCb detector. The χb(1P ) mesons are reconstructed in the decay mode χ b (1P ) → Υ (1S)γ → μ + μ −γ. The fraction of Υ (1S) originating from χb(1P ) decays in the Υ (1S) transverse momentum range 6 < pT Υ (1S) < 15 GeV/c and rapidity range 2.0 < y Υ (1S) < 4.5 is measured to be (20.7±5.7±2.1+2.7−5.4)% , 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.
Note: Reproducció del document publicat a: http://dx.doi.org/10.1007/JHEP11(2012)031
It is part of: Journal of High Energy Physics, 2012, vol. 2012, num. 11, p. 31
Related resource: http://dx.doi.org/10.1007/JHEP11(2012)031
URI: http://hdl.handle.net/2445/58753
ISSN: 1126-6708
Appears in Collections:Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))
Articles publicats en revistes (Física Quàntica i Astrofísica)

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