Gamma rays as probe of fission and quasi-fission dynamics in the reaction $^{32}$S $+$ $^{197}$Au near the Coulomb barrier

A. Pulcini , E. Vardaci , E. Kozulin , M. Ashaduzzaman , C. Borcea , A. Bracco , S. Brambilla , S. Calinescu , F. Camera , M. Ciemala , B. de Canditiis , O. Dorvaux (1) , I.M. Harca , I. Itkis , V.V. Kirakosyan , G. Knyazheva , N. Kozulina , I.V. Kolesov , G. La Rana , A. Maj , I. Matea (2) , K. Novikov , C. Petrone , D. Quero , P. Rath , E. Saveleva , C. Schmitt (3) , G. Sposito , O. Stezowski (4) , W.H. Trzaska , J. Wilson

1 IPHC - Institut Pluridisciplinaire Hubert Curien
2 IPNO - Institut de Physique Nucléaire d'Orsay
3 GANIL - Grand Accélérateur National d'Ions Lourds
4 IPNL - Institut de Physique Nucléaire de Lyon

Compound nucleus fission and quasi-fission are both binary decay channels whose common properties make the experimental separation between them difficult. A way to achieve this separation could be to probe the angular momentum of the binary fragments. This can be done detecting gamma rays in coincidence with the two fragments. As a case study, the reaction 32S + 197Au near the Coulomb barrier has been performed at the Tandem ALTO facility at IPN ORSAY. ORGAM and PARIS, two different gamma detectors arrays, are coupled with the CORSET detector, a two-arm time-of-flight spectrometer. TOF-TOF data were analyzed to reconstruct the mass-energy distribution of the primary fragments coupled with gamma multiplicity and spectroscopic analysis. Preliminary results of will be shown.

Domaines: Physique Nucléaire Expérimentale [nucl-ex]

A. Pulcini, E. Vardaci, E. Kozulin, M. Ashaduzzaman, C. Borcea, et al.. Gamma rays as probe of fission and quasi-fission dynamics in the reaction $^{32}$S $+$ $^{197}$Au near the Coulomb barrier. International Workshop Nuclear Reactions on Nucleons and Nuclei, Oct 2017, Melissa, Italy. pp.012013, ⟨10.1088/1742-6596/1014/1/012013⟩. ⟨hal-01839681⟩