"Magicity and shape-coexistence in A~70 mass region".

 The Shell model constitutes one of the main building blocks of our understanding of nuclear structure. It has been quite successful in predicting and explaining the occurrence of magic numbers in nuclei close to the valley of stability. However,in recent decades when technological breakthroughs have enabled access to detailed spectroscopy in mass regions away from the valley of stability, we now know that these so called magic numbers are not universal. The fragility and robustness of these numbers have been constantly under debate over the last decades and have questioned our current understanding of the atomic nuclei. In addition to triggering worldwide efforts to access more and more neutron rich nuclei these observations have also prompted a need to revisit some old “not so very neutron-rich” neighbors residing in the vicinity of stability line. One such extensively visited region is around mass A~70 spanning neutron deficient Se and Kr isotopes to the barely neutron rich Ni and Cu. It has been observed that the non-yrast and high-spin states in these nuclei already show a manifestation of the effective nucleon-nucleon interactions that play crucial roles in the shell evolution in exotic nuclei.Some recent exciting results from this mass region and the feasibility and prospects of spectroscopic studies in these nuclei using the current and planned facilities at TIFR will be discussed.

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