Spectroscopic factor and proton formation probability for the d3/2 proton emitter 151mLu
Wang, F., Sun, B.H., Liu, Z., Page, R.D., Qi, C., Scholey, C., Ashley, S.F., Bianco, L., Cullen, I.J., Darby, I.G., Eeckhaudt, S., Garnsworthy, A.B., Gelletly, W., Gomez-Hornillos, M.B., Grahn, T., Greenlees, P., Jenkins, D.G., Jones, G.A., Jones, P., . . . Zhu, L.H. (2017). Spectroscopic factor and proton formation probability for the d3/2 proton emitter 151mLu. Physics Letters B, 770, 83-87. https://doi.org/10.1016/j.physletb.2017.04.034
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Physics Letters BDate
2017Copyright
© 2017 the Authors. Published by Elsevier B.V. This is an open access article distributed under the terms of the Creative Commons Attribution License. Funded by SCOAP3
The quenching of the experimental spectroscopic factor for proton emission from the short-lived d3/2d3/2 isomeric state in 151mLu was a long-standing problem. In the present work, proton emission from this isomer has been reinvestigated in an experiment at the Accelerator Laboratory of the University of Jyväskylä. The proton-decay energy and half-life of this isomer were measured to be 1295(5) keV and 15.4(8) μs, respectively, in agreement with another recent study. These new experimental data can resolve the discrepancy in the spectroscopic factor calculated using the spherical WKB approximation. Using the R-matrix approach it is found that the proton formation probability indicates no significant hindrance for the proton decay of 151mLu.
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Except where otherwise noted, this item's license is described as © 2017 the Authors. Published by Elsevier B.V. This is an open access article distributed under the terms of the Creative Commons Attribution License. Funded by SCOAP3