Barrier distribution of quasi-elastic backward scattering

Journal Article · Mon May 04 00:00:00 EDT 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3141640· OSTI ID:21304770

Mitsuoka, S; Ikezoe, H; Nishio, K ^[1]; Watanabe, Y; Jeong, S C; Ishiyama, H; Hirayama, Y; Imai, N ^[2]; Miyatake, H ^[1]

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1. Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195 (Japan)
2. Institute for nuclear and particle physics, High Energy Accelerator Research Organization, Tsukuba, Ibaraki 305-0801 (Japan)

In order to study the nucleus-nucleus interaction in Pb-based cold fusion, we have measured excitation functions for quasi-elastic scattering of {sup 48}Ti, {sup 54}Cr, {sup 56}Fe, {sup 64}Ni, {sup 70}Zn and {sup 86}Kr projectiles on {sup 208}Pb target at backward angles. The barrier distributions were derived from the first derivative of measured quasi-elastic scattering cross sections relative to the Rutherford scattering cross section. The centroids of the barrier distributions show a deviation from several predicted barrier heights toward the low energy side. The shape of the barrier distributions is well reproduced by the results of a coupled-channel calculation taking account of the coupling effects of two phonon excitations of the quadrupole vibration for the projectiles and of the octupole vibration for the {sup 208}Pb target.

• OSTI ID: 21304770
• Journal Information: AIP Conference Proceedings, Vol. 1120, Issue 1; Conference: 6. Japan-Italy symposium on heavy-ion physics, Tokai (Japan), 11-15 Nov 2008; Other Information: DOI: 10.1063/1.3141640; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CHROMIUM 54
CHROMIUM 54 REACTIONS
COLD FUSION
COUPLED CHANNEL THEORY
COUPLING
EXCITATION
EXCITATION FUNCTIONS
IRON 56
IRON 56 REACTIONS
KRYPTON 86
LEAD 208 TARGET
NICKEL 64
QUASI-ELASTIC SCATTERING
RUTHERFORD SCATTERING
TITANIUM 48
TITANIUM 48 REACTIONS
VIBRATIONAL STATES
ZINC 70