München 2006 – scientific programme

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HK: Physik der Hadronen und Kerne

HK 23: Elektromagnetische und Hadronische Sonden

HK 23.3: Talk

Tuesday, March 21, 2006, 17:30–17:45, G

Correlation femtoscopy for studying the η meson production mechanism — •Pawel Klaja — Jagellonian University, Kraków, Poland

Recently the COSY-11 collaboration has taken high statistics data for the pp → ppη reaction [1]. These data are presently evaluated using the method, commonly referred to as correlation femtoscopy [2]. This technique, based on the correlation function of the two protons, permits to determine the size of the source from which protons are emitted.
We will present a comparison of experimental results extracted with theoretical predictions.
The experimental correlation function has been evaluated including the background subtraction and acceptance correction for the COSY-11 detection setup.
The analysis procedure will be introduced and the obtained results will be discussed in context of the investigation of the dynamics of the η meson production via the nucleon-nucleon interaction.

1. P. Moskal et al., Phys. Rev C 69 (2004) 025203.

2. R. Lednicky, NUCLEONIKA 49 (Sup. 2) (2004) S3.

Supported by FZ-Jülich and DAAD.