Abstract
The production of \( \Delta^{{++}}_{}\) and \( \Delta^{0}_{}\) resonances on oxygen nuclei in 16O + p interactions at 3.25A GeV/c was investigated with 4\( \pi\) acceptance. The masses and widths of the resonances were obtained from an analysis of the experimental and background invariant-mass distributions of p\( \pi^{{\pm}}_{}\) pairs. The fractions of charged pions coming from \( \Delta^{{++}}_{}\) and \( \Delta^{0}_{}\) decay were estimated. The momentum, kinetic energy, and emission angle distributions of \( \Delta^{{++}}_{}\) and \( \Delta^{0}_{}\) resonances were reconstructed in the oxygen nucleus rest frame. The slope parameters, T0 , of the reconstructed spectra of invariant cross-sections of \( \Delta^{{++}}_{}\) and \( \Delta^{0}_{}\) resonances, produced on oxygen nuclei in 16O + p interactions at 3.25A GeV/c , were determined.
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Olimov, K.K., Lutpullaev, S.L., Yuldashev, B.S. et al. Production of \( \Delta\)(1232) -resonances on oxygen nuclei in 16O + p collisions at a momentum of 3.25 GeV/c per nucleon. Eur. Phys. J. A 44, 43–54 (2010). https://doi.org/10.1140/epja/i2010-10931-1
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DOI: https://doi.org/10.1140/epja/i2010-10931-1