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HK: Fachverband Hadronen und Kerne

HK 72: Nuclear Structure and Dynamics II

HK 72.4: Vortrag

Donnerstag, 19. März 2009, 17:30–17:45, H-ZO 50

Reaction study of ¹¹Li on ²⁰⁸Pb target at energies close the Coulomb barrier — •mario cubero¹, maria jose borge¹, olof tengblad¹, martin alcorta¹, miguel madurga¹, joaquin camacho², ismael martel³, and pat walden⁴ — ¹Instituto de Estructura de la Materia, Madrid, Spain — ²Departamento de Física Atómica, Molecular y Nuclear, Universidad de Sevilla, Sevilla, Spain — ³Departamento de Física Aplicada, Universidad de Huelva, Huelva, Spain — ⁴TRI-University Meson Facilities, University of British Columbia, Vancouver Canadá

In the past 20 years there has been interest among the nuclear physics community to study the exotic properties observed in halo nuclei such as ¹¹Li. Recent theoretical calculations predicted a deviation of the elastic cross section from the standard Rutherford formula, expected due to the dipole structure formed by the ⁹Li core and the halo neutrons when passing near the strong Coulomb produced by the Pb target. To explore this effect, the scattering and breakup reactions of the two-neutron halo nucleus ¹¹Li were measured at ISACII-TRIUMF. Data was obtained at energies around, below and above the Coulomb barrier, 2.7MeV/u. We used a set of four telescopes with PAD silicon detectors behind in order to clearly identified all fragments in the full detection angles covering 10-140 degree.In this contribution we will present the analysis of the ⁹Li scattering data that it is needed to understand the effect on the ¹¹Li cross sections. We will also present preliminary results of the ¹¹Li scattering.