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New excited 2(+) and 3(-) two-proton states in Po-210(84)126 populated by two-proton transfer

机译:PO-210(84)126中的新兴奋2(+)和3( - )两种质子态由两质子转移填充

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Five new 2(+) levels have been established in the semimagic Po-210 nucleus from a (208)pb(C-12, Be-10) two-proton transfer experiment, performed at energies close to the Coulomb barrier at JAEA Tokai. A setup combining Ge, LaBr3, and Si telescopes was used to detect both in-beam gamma rays and ejectile residues. The new 2(+) states have been established by means of the transitions toward the 0(+) ground state which are present in the gamma spectra produced by properly selecting the excitation energy in Po-210 after kinematical reconstruction. (f(7/2) )(2), h(9/2) circle times f(5/2), (i(13/2))(2), f(7/2) circle times p(3/2), and f(7/2) circle times f(5/2) two-proton configurations are assigned to these states. In addition, a new 3(-) level has also been established in this nucleus, very likely originating from the f(7/2) circle times i(13/2) configuration. Shell-model calculations strongly support these assignments.
机译:从A(208)PB(C-12,BE-10)的两质子转移实验中,在半代型PO-210核中建立了五种新的2(+)水平,在JAEA Tokai的Coulomb屏障接近的能量上进行。 使用组合GE,LABR3和SI望远镜的设置来检测束型伽马射线和喷射物残留物。 通过朝向0(+)地面状态的过渡建立了新的2(+)态,其存在于通过在运动重建之后正确选择PO-210中的激发能量而产生的伽马光谱。 (F(7/2))(2),h(9/2)圆次F(5/2),(i(13/2))(2),f(7/2)圆时间p(3 / 2),F(7/2)圆时间F(5/2)两种质子配置被分配给这些状态。 此外,在该核中也已经建立了新的3( - )水平,很可能是来自F(7/2)圆时I(13/2)配置的可能性。 Shell-Model计算强烈支持这些作业。

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