Peripheral interactions in the collision ofO16+238

Abstract

Inclusive and semiexclusive elemental production cross sections of projectilelike fragments emerging in the collision ' 0+ U at 110. 4 MeV have been investigated. Energy spectra and angular distributions of projectile residues with charge from Z =3 to Z = 8 have been measured. It has been found that, as expected, the dominant reaction mechanism in the peripheral collisions is a mass transfer from projectile to target mainly dominated by a transfer of an a particle. The in-plane coincidences between projectilelike and fission fragments suggest that 14% of the total fission cross section is associated with the fission of a targetlike nucleus.PACS number(s): 25.70.Hi, 25.85.Ge

Angular correlations of projectilelike and fission fragments in the reactionO16+Pagano1, Aiello2, Filippo3 et al. 1994Phys. Rev. CSelf Cite4000View full textAdd to dashboardCite

“…The DWBA analysis of the inclusive data discussed in Ref. [1] showed that at the grazing angle (= 70') the PLF energy spectra were described by quite similar Q values and angular momentum distributions nearly independent of the PLF detection angle. However, the following remark concerns the quoted error on the Jacobian.…”

“…As suggested in Ref. [1], other carbon isotopes are expected in the reaction, changing, consequently, the kinematic of the recoil target nucleus. Assuming that the carbon ejectile was equally populated by isotopes with mass number A between 11 and 14, a dispersion on the value of the Jacobian of 15% was evaluated.…”

“…[1]. In brief, it was ass»med that the fission of a target nucleus followed a two body transfer process according to the reaction: 0+ U~PLF'+TLF' where PLF' and TLF' stand for the projectilelike and the targetlike excited nuclei, respectively.…”

“…4 MeV [1]. It was shown that 21'%%uo of the reaction cross section corresponded to the production of PLF &om oxygen to lithium.…”

“…However this value was quoted supposing an isotropic emission of the FF in the f'rame of the fissioning targetlike nucleus. In this paper, a detailed experimental investigation of both in-plane and out-of-plane angular correlations of the FF detected in coincidence with the PLF is presented for the same system and at the same bombarding energy as previously studied [1).…”