Production region of identical pions at 38 GeV/c pi--nuclei interactions with high-Ptparticles

Autor: G. Pinter, S. Krasznovsky, T. Gemesy, A I Chklovskaia, L. L. Gabunia, Avto Kharchilava, V. N. Penev, L. S. Vertogradov, L. Jenik
Rok vydání: 1995
Předmět:
Zdroj: Journal of Physics G: Nuclear and Particle Physics. 21:307-316
ISSN: 1361-6471
0954-3899
DOI: 10.1088/0954-3899/21/3/006
Popis: The correlation functions of pairs of identical pions, extracted from pi +or- meson production in pi -A (A=p,d,C,Cu,Pb) collisions at 38 GeV/c by high-Pt trigger, show an enhancement at small values of the pions' relative momenta. The radii R of the pion source were calculated using different parametrizations in pion interferometry. The values of R vary from 0.8 to 2 fm in different interactions with Pt>1 GeV/c. Significant changes of the pion source parameters for different Pt momenta cuts have not been observed.
Databáze: OpenAIRE