CMS-BPH-10-005

CMS-BPH-10-005 ; CERN-PH-EP-2011-034
Measurement of the B $^{0}$ Production Cross Section in pp Collisions at $\sqrt{s}$ = 7 TeV
CMS Collaboration
15 April 2011
Phys. Rev. Lett. 106 (2011) 252001
Abstract: Measurements of the differential production cross sections in transverse momentum and rapidity for B $^0$ mesons produced in pp collisions at $\sqrt{s}$ = 7 TeV are presented. The dataset used was collected by the CMS experiment at the LHC and corresponds to an integrated luminosity of 40 inverse picobarns. The production cross section is measured from B $^0$ meson decays reconstructed in the exclusive final state $\mathrm{J/\psi K_s^0 }$ , with the subsequent decays $\mathrm{ J/\psi \to \mu^+ \mu^- }$ and $\mathrm{ K_s^0 } \to \pi^+ \pi^-$ . The total cross section for $p_{ \mathrm{T} } ( \mathrm{ B}^0) >$ 5 GeV and $y( \mathrm{B}^0 ) <$ 2.2 is measured to be 33.2 $\pm$ 2.5 $\pm$ 3.5 microbarns, where the first uncertainty is statistical and the second is systematic.
Links: e-print arXiv:1104.2892 [hep-ex] (PDF) ; CDS record ; inSPIRE record ; Public twiki page ; HepData record ; CADI line (restricted) ;

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