https://doi.org/10.1140/epja/i2010-10931-1
Regular Article - Experimental Physics
Production of
(1232) -resonances on oxygen nuclei in 16O + p collisions at a momentum of 3.25 GeV/c per nucleon
1
Physical-Technical Institute of SPA “Physics-Sun” of Uzbek Academy of Sciences, G. Mavlyanov str. 2b, 100084, Tashkent, Uzbekistan
2
Department of Physics, COMSATS Institute of Information Technology, Park Road, Islamabad, Pakistan
3
Institute of Nuclear Physics of Uzbek Academy of Sciences, 100214, Tashkent, Uzbekistan
* e-mail: olimov@uzsci.net
Received:
6
October
2009
Revised:
17
December
2009
Accepted:
25
January
2010
Published online:
26
February
2010
The production of and
resonances on oxygen nuclei in 16O + p interactions at 3.25A GeV/c was investigated with 4
acceptance. The masses and widths of the resonances were obtained from an analysis of the experimental and background invariant-mass distributions of p
pairs. The fractions of charged pions coming from
and
decay were estimated. The momentum, kinetic energy, and emission angle distributions of
and
resonances were reconstructed in the oxygen nucleus rest frame. The slope parameters, T0 , of the reconstructed spectra of invariant cross-sections of
and
resonances, produced on oxygen nuclei in 16O + p interactions at 3.25A GeV/c , were determined.
© SIF, Springer-Verlag Berlin Heidelberg, 2010