학술논문
Spectroscopic factor and proton formation probability for the d3/2 proton emitter 151mLu
Document Type
Working Paper
Author
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. T.; Jenkins, D. G.; Jones, G. A.; Jones, P.; Joss, D. T.; Julin, R.; Juutinen, S.; Ketelhut, S.; Khan, S.; Kishada, A.; Leino, M.; Niikura, M.; Nyman, M.; Pakarinen, J.; Pietri, S.; Podolyak, Z.; Rahkila, P.; Rigby, S.; Saren, J.; Shizuma, T.; Sorri, J.; Steer, S.; Thomson, J.; Thompson, N. J.; Uusitalo, J.; Walker, P. M.; William, S.; Zhang, H. F.; Zhang, W. Q.; Zhu, L. H.
Source
Physics Letters B 770 (2017) 83
Subject
Language
Abstract
The quenching of the experimental spectroscopic factor for proton emission from the short-lived $d_{3/2}$ isomeric state in $^{151m}$Lu 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 Jyv\"{a}skyl\"{a}. The proton-decay energy and half-life of this isomer were measured to be 1295(5) keV and 15.4(8) $\mu$s, 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 $^{151m}$Lu.
Comment: 6 pages, 5 figures
Comment: 6 pages, 5 figures