The Sb-121(p,t)Sb-119 reaction has been measured in a high-resolution experiment at an incident energy of 21 MeV. Accurate measurement of the (p,t) reaction angular distributions for the transitions to the levels of Sb-119 allows us to determine energies of 59 levels, 23 of which have been identified for the first time, and to assign the angular momentum transfer values and a well-defined range for the J values. DWBA analysis has been performed in a finite-range approximation, assuming a dineutron cluster pickup mechanism, by using conventional Woods-Saxon potentials for the entrance proton and exit triton channel. The present (p,t) data have been supplemented by microscopic calculations in the framework of the quasiparticle-phonon model, giving a reasonably good description of the experimental fragmentation of the integrated cross sections and the absence of (p,t) strength above 2.9 MeV.
High-resolution investigation of the Sb-121(p,t)Sb-119 reaction and quasiparticle-phonon model description / P. Guazzoni, L. Zetta, V.Y. Ponomarev, G. Graw, R. Hertenberger, T. Faestermann, H.F. Wirth, M. Jaskola. - In: JOURNAL OF PHYSICS. G, NUCLEAR AND PARTICLE PHYSICS. - ISSN 0954-3899. - 34:12(2007 Dec), pp. 2665--2678. [10.1088/0954-3899/34/12/011]
High-resolution investigation of the Sb-121(p,t)Sb-119 reaction and quasiparticle-phonon model description
P. GuazzoniPrimo
;L. ZettaSecondo
;
2007
Abstract
The Sb-121(p,t)Sb-119 reaction has been measured in a high-resolution experiment at an incident energy of 21 MeV. Accurate measurement of the (p,t) reaction angular distributions for the transitions to the levels of Sb-119 allows us to determine energies of 59 levels, 23 of which have been identified for the first time, and to assign the angular momentum transfer values and a well-defined range for the J values. DWBA analysis has been performed in a finite-range approximation, assuming a dineutron cluster pickup mechanism, by using conventional Woods-Saxon potentials for the entrance proton and exit triton channel. The present (p,t) data have been supplemented by microscopic calculations in the framework of the quasiparticle-phonon model, giving a reasonably good description of the experimental fragmentation of the integrated cross sections and the absence of (p,t) strength above 2.9 MeV.Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.