Aug 12 – 18, 2012
US/Eastern timezone

If you have any questions about the details of the program please contact Bolek Wyslouch

Midrapidity antibaryon-to-baryon ratios in pp and Pb-Pb collisions measured by the ALICE experiment

Aug 15, 2012, 12:00 PM
Regency 2/3

Regency 2/3

Oral Presentation Global and collective dynamics Parallel 4A: Global & Collective Dynamics (Chair P. Sorenson)


Michal Broz (Comenius University (SK))


The ALICE Experiment features low material budget and high resolution tracking, which allow for precise measurements of charged particle production. The measurement of the antibaryon to baryon ratios ($\bar{B}$/B), in particular, probes the baryon transport and the degree of baryon stopping in high energy collisions, providing insight into the collision dynamics and the structure of baryons. In this talk, we discuss the measurement of diferent $\bar{B}$/B ratios ($\bar{p}/p, $\bar{\lambda}/\lambda$, $\xi^+/\xi^-$, $\omega^+/\omega^-$) in pp collisions at \sqrt{s} = 0.9, 2.76, and 7 TeV and in Pb-Pb collisions at \sqrt{s_{NN}} = 2.76 TeV, as a function of charged particle multiplicity, rapidity and transverse momentum. Results from pp and Pb-Pb collisions are presented and compared to models.

Primary author

Collaboration ALICE (CERN, Geneva, Switzerland)


Christine Nattrass (University of Tennessee (US))

Presentation materials

Peer reviewing