Inhaltszusammenfassung

The production of K*(892)^0 and phi(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^2N/dydpT at midrapidity |y|<0.5 in the range 0<pT<6 GeV/c for K*(892)^0 and 0.4<pT<6 GeV/c for phi(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*/K^-, phi/K*, phi/K^-, phi/\pi^-, and (Omega + anti-Omega)/p...The production of K*(892)^0 and phi(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^2N/dydpT at midrapidity |y|<0.5 in the range 0<pT<6 GeV/c for K*(892)^0 and 0.4<pT<6 GeV/c for phi(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*/K^-, phi/K*, phi/K^-, phi/\pi^-, and (Omega + anti-Omega)/phi are presented. The values of the K*/K^-, phi/K* and phi/K^- ratios are similar to those found at lower centre-of-mass energies. In contrast, the phi/pi^- ratio, which has been observed to increase with energy, seems to saturate above 200 GeV. The (Omega + anti-Omega)/phi ratio in the pT 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. » weiterlesen» einklappen

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DDC Sachgruppe:
Physik