@article{3158103,
    title = "Mid-rapidity anti-baryon to baryon ratios in pp collisions at root
s=0.9, 2.76 and 7 TeV measured by ALICE",
    author = "Abbas, E. and Abelev, B. and Adam, J. and Adamova, D. and Adare, A. M. and and Aggarwal, M. M. and Rinella, G. Aglieri and Agnello, M. and Agocs, and A. G. and Agostinelli, A. and Ahammed, Z. and Ahmad, N. and Masoodi, A. and Ahmad and Ahmed, I. and Ahn, S. A. and Ahn, S. U. and Aimo, I. and Ajaz, and M. and Akindinov, A. and Aleksandrov, D. and Alessandro, B. and Alici, and A. and Alkin, A. and Almarz Avina, E. and Alme, J. and Alt, T. and and Altini, V. and Altinpinar, S. and Altsybeev, I. and Andrei, C. and and Andronic, A. and Anguelov, V. and Anielski, J. and Anson, C. and and Anticic, T. and Antinori, F. and Antonioli, P. and Aphecetche, L. and and Appelshaeuser, H. and Arbor, N. and Arcelli, S. and Arend, A. and and Armesto, N. and Arnaldi, R. and Aronsson, T. and Arsene, I. C. and and Arslandok, M. and Asryan, A. and Augustinus, A. and Averbeck, R. and and Awes, T. C. and Aeystoe, J. and Azmi, M. D. and Bach, M. and Badala, A. and and Baek, Y. 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    journal = "The European Physical Journal C - Particles and Fields",
    year = "2013",
    volume = "73",
    number = "7",
    publisher = "Springer-Verlag",
    issn = "1434-6044, 1434-6052",
    doi = "10.1140/epjc/s10052-013-2496-5",
    abstract = "The ratios of yields of anti-baryons to baryons probes the mechanisms of
baryon-number transport. Results for (p) over bar /p, (Lambda) over
bar/Lambda, (Xi) over bar (+)/(Xi) over bar (-) and (Omega) over bar
(+)/(Omega) over bar (-) in pp collisions at root s = 0.9, 2.76 and 7
TeV, measured with the ALICE detector at the LHC, are reported. Within
the experimental uncertainties and ranges covered by our measurement,
these ratios are independent of rapidity, transverse momentum and
multiplicity for all measured energies. The results are compared to
expectations from event generators, such as PYTHIA and HIJING/B, that
are used to model the particle production in pp collisions. The energy
dependence of (p) over bar /p, (Lambda) over bar/(Lambda) over bar, (Xi)
over bar (+)/(Xi) over bar (-) and (Omega) over bar (+)/(Omega) over bar
(-), reaching values compatible with unity for root s = 7 TeV,
complement the earlier (p) over bar /p measurement of ALICE. These
dependencies can be described by exchanges with the Regge-trajectory
intercept of alpha(J) approximate to 0.5, which are suppressed with
increasing rapidity interval Delta y. Any significant contribution of an
exchange not suppressed at large Delta y (reached at LHC energies) is
disfavoured."
}