Production of K${}^{\ast }$(892)${}^0$ and $\varphi$(1020) in pp collisions at $\sqrt{s}=7$ TeV

Abstract

The production of K${}^{\ast }$(892)${}^0$ and $\varphi$(1020) in pp collisions at $\sqrt{s}=7$ TeV was measured by the ALICE experiment at the LHC. The yields and the transverse momentum spectra d${}^2$N/d$y$d$p_{\mathrm{T}}$ at midrapidity $|y|<0.5$ in the range $0<p_{\mathrm{T}}<6$ GeV/$c$ for K${}^{\ast }$(892)${}^0$ and $0.4<p_{\mathrm{T}}<6$ GeV/$c$ for $\varphi$(1020) are reported and compared to model predictions. Using the yield of pions, kaons, and Omega baryons measured previously by ALICE at $\sqrt{s}=7$ TeV, the ratios K${}^{\ast }$/K${}^{-}$, $\varphi$/K${}^{\ast }$, $\varphi$/K${}^{-}$, $\varphi /{\pi }^{-}$, and ($\Omega$ + $\overline{\Omega }$)/$\varphi$ are presented. The values of the K${}^{\ast }$/K${}^{-}$, $\varphi$/K${}^{\ast }$ and $\varphi$/K${}^{-}$ ratios are similar to those found at lower centre-of-mass energies. In contrast, the $\varphi /{\pi }^{-}$ ratio, which has been observed to increase with energy, seems to saturate above 200 GeV. The ($\Omega$ + $\overline{\Omega }$)/$\varphi$ ratio in the $p_{\mathrm{T}}$ range $1$-$5$ GeV/$c$ is found to be in good agreement with the prediction of the HIJING/BB v2.0 model with a strong colour field.

28 pages, 12 captioned figures, 3 tables, authors from page 23, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/3101

References in corpus (8)

• PYTHIA 6.4 Physics and Manual
• Measurements of Strange Particle Production in $p+p$ Collisions at $\sqrt{s}$= 200 GeV
• Thermal Dileptons at LHC
• Heavy-Quark Kinetics in the QGP at LHC
• Measurement of inelastic, single- and double-diffraction cross sections in proton-proton collisions at the LHC with ALICE
• Energy dependence of phi meson production in central Pb+Pb collisions at sqrt(s_nn) = 6 to 17 GeV
• Measurements of $\varphi$ meson production in relativistic heavy-ion collisions at RHIC
• Proceedings of the First International Workshop on Multiple Partonic Interactions at the LHC (MPI08)

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