Study of Non-fusion Products in the ⁵⁰Ti+²⁴⁹Cf Reaction

Summary, in English

The isotopic distribution of nuclei produced in the ⁵⁰Ti + ²⁴⁹Cf reaction has been studied at the gas-filled recoil separator TASCA at GSI Darmstadt, which separates ions according to differences in magnetic rigidity. The bombardment was performed at an energy around the Bass barrier and with the TASCA magnetic fields set for collecting fusion-evaporation reaction products. Fifty-three isotopes located “north-east” of ²⁰⁸Pb were identified as recoiling products formed in non-fusion channels of the reaction. These recoils were implanted with energies in two distinct ranges; besides one with higher energy, a significant low-energy contribution was identified. The latter observation was not expected to occur according to kinematics of the known types of reactions, namely quasi-elastic, multi-nucleon transfer, deep-inelastic collisions or quasifission. The present observations are discussed within the framework of two-body kinematics passing through the formation of a composite system.

• Author: A. Di Nitto; J. Khuyagbaatar; D. Ackermann; L. L. Andersson; E. Badura; M. Block; H. Brand; I. Conrad; D. M. Cox; Ch E. Düllmann; J. Dvorak; K. Eberhardt; P. A. Ellison; N. E. Esker; J. Even; C. Fahlander; U. Forsberg; J. M. Gates; P. Golubev; O. Gothe; K. E. Gregorich; W. Hartmann; R. D. Herzberg; F. P. Heßberger; J. Hoffmann; R. Hollinger; A. Hübner; E. Jäger; B. Kindler; S. Klein; I. Kojouharov; J. V. Kratz; J. Krier; N. Kurz; S. Lahiri; B. Lommel; M. Maiti; R. Mändl; E. Merchán; S. Minami; A. K. Mistry; C. Mokry; H. Nitsche; J. P. Omtvedt; G. K. Pang; D. Renisch; D. Rudolph; J. Runke; L. G. Sarmiento; M. Schädel; H Schaffner; B. Schausten; A. Semchenkov; J. Steiner; P. Thörle-Pospiech; N. Trautmann; A. Türler; J. Uusitalo; D. Ward; M. Wegrzecki; P. Wieczorek; N. Wiehl; A. Yakushev; V. Yakusheva
• Department/s: Nuclear physics
• Publishing year: 2018-09-10
• Language: English
• Pages: 199-205
• Publication/Series: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
• Volume: 784
• Links: http://dx.doi.org/10.1016/j.physletb.2018.07.058
• Document type: Journal article
• Publisher: Elsevier
• Topic: Subatomic Physics
• Keywords: Multi-nucleon transfer reactions; Production of radioactive nuclei; Quasifission; α decay
• Status: Published
• Project: Nuclear Structure at the Limits: Isotope-selective Spectroscopy
• ISBN/ISSN/Other: ISSN: 0370-2693