The differential production cross section of the ϕ(1020) meson in √s = 7 TeV pp collisions measured with the ATLAS detector
Author(s)Taylor, Frank E.
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A measurement is presented of the ϕ × BR(ϕ → K[superscript +]K[superscript −]) production cross section at √s = 7 TeV using pp collision data corresponding to an integrated luminosity of 383 μb[superscript −1], collected with the ATLAS experiment at the LHC. Selection of ϕ (1020) mesons is based on the identification of charged kaons by their energy loss in the pixel detector. The differential cross section is measured as a function of the transverse momentum, p[subscript T,ϕ], and rapidity, y[subscript ϕ], of the ϕ (1020) meson in the fiducial region 500 \(1200 MeV, |y[subscript ϕ]| < 0.8, kaon p[subscript T,K] > 230 MeV and kaon momentum p[subscript K] < 800 MeV. The integrated ϕ(1020)-meson production cross section in this fiducial range is measured to be σ[subscript ϕ] × BR(ϕ → K[superscript +]K[superscript −]) = 570 ± 8 (stat) ± 66 (syst) ± 20 (lumi) μb.
DepartmentMassachusetts Institute of Technology. Department of Physics
The European Physical Journal C
Aad, G., T. Abajyan, B. Abbott, J. Abdallah, S. Abdel Khalek, A. A. Abdelalim, O. Abdinov, et al. “The differential production cross section of the ϕ(1020) meson in √s = 7 TeV pp collisions measured with the ATLAS detector.” Eur. Phys. J. C 74, no. 7 (July 2014). © CERN for the benefit of the ATLAS collaboration
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