Multi-strange baryon production in Pb-Pb and pp collisions at $\sqrt{s_{NN}}$ = 2.76 TeV with the ALICE experiment at the LHC

Abstract

The production of ${\Xi }^{-}$ and ${\Omega }^{-}$ baryons and their anti-particles in Pb-Pb and pp collisions at $\sqrt{s_{NN}}$ = 2.76 TeV has been measured by the ALICE collaboration. The transverse momentum spectra at mid-rapidity (|y| < 0.5) in pp and Pb-Pb collisions for five centrality intervals have been compared with model predictions. Hyperon yields and spectra in Pb-Pb collisions, normalized to the corresponding measurements in pp at the same centre-of-mass energy, allow the study of the strangeness enhancement and the nuclear modification factor as a function of the transverse momentum ($p_T$) and collision centrality.

4 pages, 3 figures. Proceedings of the Strangeness in Quark Matter Conference (SQM 2013), 22nd - 27th July 2013, published by the Open Access Journal of Physics: Conference Series (JPCS), in the IOP conference series

References in corpus (4)

• Multi-strange baryon production at mid-rapidity in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Enhanced strange baryon production in Au+Au collisions compared to p+p at sqrts = 200 GeV
• Uniform description of bulk observables in the hydrokinetic model of A+A collisions at RHIC and LHC
• Statistical Model Predictions for Particle Ratios at sqrt(s_NN) = 5.5 TeV

Cited by in corpus (2)

• Collective expansion in pp collisions using the Tsallis statistics
• Particle species and energy dependencies of freeze-out parameters in high-energy proton-proton collisions