Bonn 2010 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 42: Struktur und Dynamik von Kernen VII

HK 42.3: Vortrag

Donnerstag, 18. März 2010, 14:30–14:45, HG II

Transient field g-factor measurement on radioactive ¹⁰⁰Pd(2₁⁺) via alpha transfer reaction^† — •Karl-Heinz Speidel¹, Noemie Benczer-Koller², Gerfried Kumbartzki², Gülhan Gürdal², Larry Zamick², Yitzhak Y. Sharon², Tan Ahn³, Robert Casperson³, Raphael Chevrier³, Andreas Heinz³, Gabriele Ilie³, Desiree Radeck³, Mallory Smith³, Elizabeth Williams³, and Peter Maier-Komor⁴ — ¹Helmholtz-Institut für Strahlen- und Kernphysik, Universität Bonn — ²Rutgers University, New Brunswick, NJ — ³Yale University, New Haven, CT — ⁴Physik-Department, Technische Universität München

¹⁰⁰Pd has four proton holes in the g_9/2 and four neutrons in the d_5/2 orbitals around the N= Z = 50 shell closures and is therefore a suitable candidate for studying single particle effects in the nuclear wave function. The α transfer from a carbon target to an energetic beam of ⁹⁶Ru close to the Coulomb barrier has been used to populate the 2₁⁺ state in radioactive ¹⁰⁰Pd via the reaction ¹²C(⁹⁶Ru, ⁸Be)¹⁰⁰Pd. ⁹⁶Ru beams of 343 MeV were provided by the Yale WNSL tandem accelerator. The two α particles from the breakup of ⁸Be as well as the carbon ions which Coulomb excited the Ru projectiles were detected in a Si detector in coincidence with gamma rays recorded in four Ge Clover detectors. Angular correlations and precessions have been measured via the transient field technique. Preliminary data yield the first measurement of the g factors of the 2₁⁺ state in ¹⁰⁰Pd and of the 4₁⁺ state in ⁹⁶Ru.

^† supported by the Deutsche Forschungsgemeinschaft