# QM 2011 - XXII International Conference on Ultrarelativistic Nucleus-Nucleus Collisions

May 22 – 28, 2011
Centre Bonlieu
Europe/Zurich timezone

## Charged KK femtoscopy correlations from 7 TeV pp collisions measured by ALICE collaboration.

Not scheduled
Théâtre National (Centre Bonlieu)

### Théâtre National

#### Centre Bonlieu

France
Board: 104
Poster Correlations and fluctuations

### Speaker

Dr Ludmila Malinina (Joint Inst. for Nuclear Research (JINR)-Unknown-Unknown)

### Description

Charged KK femtoscopy correlations from 7 TeV pp collisions measured by ALICE collaboration. L. Malinina (SINP MSU-JINR) for the ALICE collaboration We report on the results of charged kaon femtoscopy analysis of the 7 TeV pp collisions at the LHC in the ALICE experiment. KK correlation functions are constructed in 3 multiplicity and 4 kt bins. The KK source parameters are extracted by fitting the correlation functions with Gaussian, describing the source, multiplied by a polynomial background function with free coefficients (baseline). The contributions to the systematic errors from the baseline choice have been studied. The weak increase of the KK Rinv with multiplicity and some evidence on the decrease with kt was observed in kt range (0.2-0.8) GeV/c. For the kt dependence, the charged kaons are found to be complimentary to the neutral ones in their coverage of a larger range in kt (0.2-2.0) GeV/c and a decrease in the Rinv is observed for increasing kt as it is also seen in identical two-pion correlations in these collisions.

### Primary author

Dr Ludmila Malinina (Joint Inst. for Nuclear Research (JINR)-Unknown-Unknown)

 Poster