The first SEASTAR (Shell Evolution and Search for Two-plus energies At RIBF) campaign was carried out inMay 2014. We are analyzing the data for 58??63V and 63??66Mn.The experiment was performed at the Radioactive Isot...The first SEASTAR (Shell Evolution and Search for Two-plus energies At RIBF) campaign was carried out inMay 2014. We are analyzing the data for 58??63V and 63??66Mn.The experiment was performed at the Radioactive Isotope Beam Factory in RIKEN. A high-intensity 238U beamwas accelerated to bombard beryllium target to produce secondary beams. The B??ΔE??B method was applied toselect and purify secondary beams. An ionization chamber located at the focal point F7 (F11) measured the energyloss ΔE, yielding the fragments' element number Z in BigRIPS (ZDS)[1].展开更多
There have been extensive studies on even-Z nuclei in the region near 68Ni,the N^40“island of inversion”,while the information on odd-Z nuclei is still scarce.Experimental information on 65;67Mn has not been availab...There have been extensive studies on even-Z nuclei in the region near 68Ni,the N^40“island of inversion”,while the information on odd-Z nuclei is still scarce.Experimental information on 65;67Mn has not been available.In 2014,a series of in-beam measurements around 68Ni were carried out by the SEASTAR collaboration and much new information has been obtained.The experiment was performed at the Radioactive Isotope Beam Factory.A 238U primary beam(345 MeV/u)impinged on a 9Be primary target for the production of the secondary RI beams at the entrance of the BigRIPS separator.These isotopes then impinged on a thick liquid hydrogen target(LH2).展开更多
The neutron-rich isotopes with N 40 below 68Ni, in many ways behave similar to the “island of inversion” nuclei with N 20. We report on the measurements of excited states of 63;65;67Mn via in-beam -ray spectrosc...The neutron-rich isotopes with N 40 below 68Ni, in many ways behave similar to the “island of inversion” nuclei with N 20. We report on the measurements of excited states of 63;65;67Mn via in-beam -ray spectroscopy. The experiment was performed at the Radioactive Isotope Beam Factory, RIKEN. Analysis of data for 63;65;67Mn obtained in the SEASTAR campaign has been done. A few transitions have been identified in each of them providing a chance to study the systematic structure evolution of n-rich Mn isotopes near N 40.展开更多
文摘The first SEASTAR (Shell Evolution and Search for Two-plus energies At RIBF) campaign was carried out inMay 2014. We are analyzing the data for 58??63V and 63??66Mn.The experiment was performed at the Radioactive Isotope Beam Factory in RIKEN. A high-intensity 238U beamwas accelerated to bombard beryllium target to produce secondary beams. The B??ΔE??B method was applied toselect and purify secondary beams. An ionization chamber located at the focal point F7 (F11) measured the energyloss ΔE, yielding the fragments' element number Z in BigRIPS (ZDS)[1].
文摘There have been extensive studies on even-Z nuclei in the region near 68Ni,the N^40“island of inversion”,while the information on odd-Z nuclei is still scarce.Experimental information on 65;67Mn has not been available.In 2014,a series of in-beam measurements around 68Ni were carried out by the SEASTAR collaboration and much new information has been obtained.The experiment was performed at the Radioactive Isotope Beam Factory.A 238U primary beam(345 MeV/u)impinged on a 9Be primary target for the production of the secondary RI beams at the entrance of the BigRIPS separator.These isotopes then impinged on a thick liquid hydrogen target(LH2).
文摘The neutron-rich isotopes with N 40 below 68Ni, in many ways behave similar to the “island of inversion” nuclei with N 20. We report on the measurements of excited states of 63;65;67Mn via in-beam -ray spectroscopy. The experiment was performed at the Radioactive Isotope Beam Factory, RIKEN. Analysis of data for 63;65;67Mn obtained in the SEASTAR campaign has been done. A few transitions have been identified in each of them providing a chance to study the systematic structure evolution of n-rich Mn isotopes near N 40.
