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Experimental investigation of the elastic scattering of protons on 10b

F. Boreli ; Institute "Boris Kidrič", Beograde
R. Little ; University of Texas, Austin, USA
A. Rego ; University of Texas, Austin, USA

Puni tekst: engleski pdf 946 Kb

str. 19-26

preuzimanja: 15



Excitation functions for the elastic scattering of proton on 10B were measured at CM angle near 90°, 125’ and 150°, in steps of 20 keV, for proton energies between 3 and 10,5 MeV. Angular distributions of elastically scattered protons were measured in steps of 100 keV in the same energy range. Angular distributions change appreciably with the incident proton energy up to 7.5 MeV. Above this energy small changes and forward peaking of the angular distributions indicate that the direct reaction mechanism prevails. Resonances in the elastic cross section were found at 3.6, 4.4, 5.3, 5.7, 5.9, 6.4, 6.7, 7.6, and 8.9 MeV incident proton energy. They correspond in all cases to the positions of resonances which appear almost always only in a few reaction channels. For the state at 12.7 MeV (Ep = 4.4 MeV), 13.4 MeV (Ep = 5.3 MeV) and 16.8 MeV (Ep = 8.9 MeV) tentative assignements of 7/2+, 9/2+ or 11/2+ for the spin and parity are made, and for the last one that it is formed with l = O or l = 2, are given.

Ključne riječi

elastic scattering

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Podaci na drugim jezicima: hrvatski

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