Indirect mass determination for the neutron-deficient nuclides 44V, 48Mn, 52Co 
and56Cu

Tu, X .L.; Litvinov, Yuri A.; Blaum, Klaus; Mei, B.; Sun, B.H.; Sun, Y.; Wang, M.; Xu, H.S.; Zhang, Y.H.

doi:10.1016/j.nuclphysa.2015.09.016

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Indirect mass determination for the neutron-deficient nuclides⁴⁴V, ⁴⁸Mn, ⁵²Co and ⁵⁶Cu

MPS-Authors

Tu, X .L.
Institute of Modern Physics, Chinese Academy of Sciences;
GSI Helmholtzzentrum für Schwerionenforschung;
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Litvinov, Yuri A.
Institute of Modern Physics, Chinese Academy of Sciences;
GSI Helmholtzzentrum für Schwerionenforschung;
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Blaum, Klaus
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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http://www.sciencedirect.com/science/article/pii/S0375947415002237
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Citation

Tu, X.., Litvinov, Y. A., Blaum, K., Mei, B., Sun, B., Sun, Y., et al. (2015). Indirect mass determination for the neutron-deficient nuclides⁴⁴V, ⁴⁸Mn, ⁵²Co and ⁵⁶Cu. Nuclear Physics A, 945, 89-94. doi:10.1016/j.nuclphysa.2015.09.016.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0028-F021-E

Abstract

Mass excess values for ⁴⁴V, ⁵²Co and ⁵⁶Cu are derived indirectly using the mirror symmetry and known data from beta-delayed proton spectroscopy. The new mass excess obtained by using the energy conservation for ⁴⁸Mn is −29303(14) keV, which is an improvement by about an order of magnitude compared to the AME'12 value. Compared to previously known data, the new proton separation energy for ⁴⁵Cr causes a ∼3.5 times smaller matter flow through the Ca - Sc cycle during the rp-process. Obtained proton separation energies for ⁵²Co and ⁵⁶Cu are about 500 keV larger than the AME'12 values. If confirmed, this would affect photo disintegration rates of ⁵²Co (γ,p)(γ,p) ⁵¹Fe and ⁵⁶Cu (γ,p)(γ,p) ⁵⁵Ni reactions during the rp-process in X-ray bursts.