@article{c0e470d0465948d0a26d7dd65208dcdb,
title = "Strange particle production in proton–proton collisions at √s = 0.9 TeV with ALICE at the LHC",
abstract = "The production of mesons containing strange quarks (K0 S, ϕ) and both singly and doubly strange baryons (⋀, ⊼, and Ξ− +Ξ+) are measured at mid-rapidity in pp collisions at √s = 0.9 TeV with the ALICE experiment at the LHC. The results are obtained from the analysis of about 250 k minimum bias events recorded in 2009. Measurements of yields (dN/dy) and transverse momentum spectra at mid-rapidity for inelastic pp collisions are presented. For mesons, we report yields (〈dN/dy〉) of 0.184 ± 0.002(stat.) ± 0.006(syst.) for K0 S and 0.021 ± 0.004(stat.) ± 0.003(syst.) for ϕ. For baryons, we find 〈dN/dy〉 = 0.048 ± 0.001(stat.) ± 0.004(syst.) for ⋀, 0.047 ± 0.002(stat.) ± 0.005(syst.) for ⊼ and 0.0101 ± 0.0020(stat.) ± 0.0009(syst.) for Ξ− +Ξ+. The results are also compared with predictions for identified particle spectra from QCD-inspired models and provide a baseline for comparisons with both future pp measurements at higher energies and heavy-ion collisions.",
author = "{The ALICE collaboration} and K. Aamodt and {Abrahantes Quintana}, A. and D. Adamov{\'a} and Adare, {A. M.} and Aggarwal, {M. M.} and {Aglieri Rinella}, G. and Agocs, {A. G.} and {Aguilar Salazar}, S. and Z. Ahammed and N. Ahmad and {Ahmad Masoodi}, A. and Ahn, {S. U.} and A. Akindinov and D. Aleksandrov and B. Alessandro and {Alfaro Molina}, R. and A. Alici and A. Alkin and {Almar{\'a}z Avi{\~n}a}, E. and T. Alt and V. Altini and S. Altinpinar and I. Altsybeev and C. Andrei and A. Andronic and V. Anguelov and C. Anson and T. Anti{\v c}i{\'c} and F. Antinori and P. Antonioli and L. Aphecetche and H. Appelsh{\"a}user and N. Arbor and S. Arcelli and A. Arend and N. Armesto and R. Arnaldi and T. Aronsson and Arsene, {I. C.} and A. Asryan and A. Augustinus and R. Averbeck and Awes, {T. C.} and J. {\"A}yst{\"o} and Azmi, {M. D.} and M. Bach and A. Badal{\`a} and Baek, {Y. W.} and S. Bagnasco and A. Gago",
note = "Publisher Copyright: {\textcopyright} CERN for the benefit of the ALICE collaboration 2011.",
year = "2011",
month = mar,
day = "30",
doi = "10.1140/epjc/s10052-011-1594-5",
language = "English",
volume = "71",
pages = "1--24",
journal = "European Physical Journal C",
issn = "1434-6044",
number = "3",
}