Prospects for Strangeness Production in pp Collisions at LHC

Abstract

Prospects for strangeness production in pp collisions at the Large Hadron Collider (LHC) are discussed within the statistical model. Firstly, the system size and the energy dependence of the model parameters are extracted from existing data and extrapolated to LHC energy. Particular attention is paid to demonstrate that the chemical decoupling temperature is independent of the system size. In the energy regime investigated so far, strangeness production in pp interactions is strongly influenced by the canonical suppression effects. At LHC energies, this influence might be reduced. Particle ratios with particular sensitivity to canonical effects are indicated. Secondly, the relation between the strangeness production and the charged-particle multiplicity in pp interactions is investigated. In this context the multiplicity dependence studied at Tevatron is of particular interest. There, the trend in relative strangeness production known from centrality dependent heavy-ion collisions is not seen in multiplicity selected pp interactions. However, the conclusion from the Tevatron measurements is based on rather limited data samples with low statistics and number of observables. We argue, that there is an absolute need at LHC to measure strangeness production in events with different multiplicities to possibly disentangle relations and differences between particle production in pp and heavy-ion collisions.

8 pages, 5 figures, SQM 2009 conference proceedings

References in corpus (6)

• Systematic Measurements of Identified Particle Spectra in pp, d+Au and Au+Au Collisions from STAR
• Thermal description of hadron production in e+e- collisions revisited
• Particle production in p-p collisions and prediction for LHC energy
• Chemical Equilibrium in Collisions of Small Systems
• Particle production in p-p collisions at sqrt(s) = 17 GeV within the statistical model
• Onset of Deconfinement and Critical Point: NA49 and NA61/SHINE at the CERN SPS

Cited by in corpus (3)

• Hyperon/meson ratios in rare high-multiplicity $pp$ collisions at energies available at the Large Hadron Collider, and potential signatures for mini-quark-gluon plasma formation
• Strangeness Production in AA and pp Collisions
• Study of strange particle production in pp collisions with the ALICE detector