@article{3149833,
    title = "Production of pions, kaons and protons in pp collisions at root s=900
GeV with ALICE at the LHC",
    author = "Aamodt, K. and Abel, N. and Abeysekara, U. and Abrahantes Quintana, A. and and Abramyan, A. and Adamova, D. and Aggarwal, M. M. and Rinella, G. and Aglieri and Agocs, A. G. and Aguilar Salazar, S. and Ahammed, Z. and and Ahmad, A. and Ahmad, N. and Ahn, S. U. and Akimoto, R. and Akindinov, A. and and Aleksandrov, D. and Alessandro, B. and Alfaro Molina, R. and Alici, and A. and Almaraz Avina, E. and Alme, J. and Alt, T. and Altini, V. and and Altinpinar, S. and Andrei, C. and Andronic, A. and Anelli, G. and and Angelov, V. and Anson, C. and Anticic, T. and Antinori, F. and Antinori, and S. and Antipin, K. and Antonczyk, D. and Antonioli, P. and Anzo, A. and and Aphecetche, L. and Appelshaeuser, H. and Arcelli, S. and Arceo, R. and and Arend, A. and Armesto, N. and Arnaldi, R. and Aronsson, T. and Arsene, and C. and Asryan, A. and Augustinus, A. and Averbeck, R. and Awes, T. C. and and Aysto, J. and Azmi, M. D. and Bablok, S. and Bach, M. and Badala, A. and and Baek, Y. 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    journal = "The European Physical Journal C - Particles and Fields",
    year = "2011",
    volume = "71",
    number = "6",
    publisher = "Springer-Verlag",
    issn = "1434-6044, 1434-6052",
    doi = "10.1140/epjc/s10052-011-1655-9",
    abstract = "The production of pi(+), pi(-), K+, K-, p, and (p) over bar at
mid-rapidity has been measured in proton-proton collisions at root s =
900 GeV with the ALICE detector. Particle identification is performed
using the specific energy loss in the inner tracking silicon detector
and the time projection chamber. In addition, time-of-flight information
is used to identify hadrons at higher momenta. Finally, the distinctive
kink topology of the weak decay of charged kaons is used for an
alternative measurement of the kaon transverse momentum (p(t)) spectra.
Since these various particle identification tools give the best
separation capabilities over different momentum ranges, the results are
combined to extract spectra from p(t) = 100 MeV/c to 2.5 GeV/c. The
measured spectra are further compared with QCD-inspired models which
yield a poor description. The total yields and the mean pt are compared
with previous measurements, and the trends as a function of collision
energy are discussed."
}