Physics – Nuclear Physics – Nuclear Experiment
Scientific paper
2004-12-10
Physics
Nuclear Physics
Nuclear Experiment
Talk given at the XVII-th International Baldin Seminar on High Energy Physics Problems, ISHEPP XVII, 27 September- 2 October 2
Scientific paper
New data on the tensor analyzing power Ayy of the ^9Be(d,p)X reaction at an initial deuteron momentum of 5 GeV/c and secondary particles (protons and deuterons) detection angle of 178 mr have been obtained at the JINR Synchrophasotron. The proton data obtained are analyzed within the framework of an approach based on the light-front dynamics using Karmanov's relativistic deuteron wave function. Contrary to the calculations with standard non-relativistic deuteron wave functions, we have managed to explain the new data within the framework of our approach without invoking degrees of freedom additional to nucleon ones. The ^9Be(d,d)X data are obtained in the vicinity of the excitation of baryonic resonances with masses up to 1.8 GeV/c^2. The Ayy data are in a good agreement with the previous data obtained at 4.5 and 5.5 GeV/c when they are plotted versus $t$. The results of the experiment are compared with the predictions of the plane wave impulse approximation and \omega-meson exchange models.
Afanasiev S. V.
Azhgirey L. S.
Isupov Yu. A.
Ivanov V. I.
Khrenov A. N.
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