K0s-K0s correlations in 7 TeV pp collisions from the ALICE experiment at the LHC
Jul, 20114 pages
Published in:
- J.Phys.G 38 (2011) 124058
Contribution to:
e-Print:
- 1107.0084 [hep-ex]
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Abstract: (arXiv)
Identical neutral kaon pair correlations are measured in 7 TeV pp collisions in the ALICE experiment. K0s-K0s correlation functions are formed in 3 multiplicity X 4 kT bins. The femtoscopic kaon source parameters Rinv and lambda are extracted from these correlation functions by fitting a (femtoscopy) X (PYTHIA) model to them, PYTHIA accounting for the non-flat baseline found in pp collisions. Source parameters are obtained from a fit which includes quantum statistics and final-state interactions of the a0/f0 resonance. K0s-K0s correlations show a systematic increase in Rinv for increasing multiplicity bin and decreasing Rinv for increasing kT bin as seen in pi-pi correlations in the pp system, as well as seen in heavy-ion collisions. Also, K0s-K0s correlations are observed to smoothly extend this pi-pi Rinv behavior for the pp system up to about three times higher kT than the kT range measured in pi-pi correlations.Note:
- Proceedings of the Quark Matter 2011 Conference, 4 pages, 5 figures
- pi pi: correlation
- heavy ion: scattering
- statistics: quantum
- quark: matter
- correlation function
- multiplicity
- PYTHIA
- ALICE
- final-state interaction
- CERN LHC Coll
References(12)
Figures(5)