How well does NLO pQCD describe strangeness in p + p collisions at √ s = 200 GeV in STAR ?
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چکیده
We present measurements of the transverse momentum spectra for K 0 S , Λ, Ξ and their antiparticles in p+p collisions at √ s = 200GeV. The extracted mid-rapidity yields and p T are in agreement with previous p + ¯ p experiments while they have smaller statistical errors. We further show a dependence of the p T with event multiplicity and infer that this is consistent with a mini-jet dominated particle production mechanism. We then compare the measured spectra for K 0 S and Λ to the latest available calculations from NLO pQCD and see good agreement for the K 0 S above 1.5 GeV/c.
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Fe b 20 05 How well does NLO pQCD describe strangeness production in p + p collisions at √ s = 200 GeV in STAR ?
We present measurements of the transverse momentum spectra for K 0 S , Λ, Ξ and their antiparticles in p+p collisions at √ s = 200GeV. The extracted mid-rapidity yields and p T are in agreement with previous p + ¯ p experiments while they have smaller statistical errors. We compare the measured spectra for K 0 S and Λ to the latest available calculations from NLO pQCD and see good agreement for...
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