Physics Letters B (Jul 2017)
Spectroscopic factor and proton formation probability for the d3/2 proton emitter 151mLu
- F. Wang,
- B.H. Sun,
- Z. Liu,
- R.D. Page,
- C. Qi,
- C. Scholey,
- S.F. Ashley,
- L. Bianco,
- I.J. Cullen,
- I.G. Darby,
- S. Eeckhaudt,
- A.B. Garnsworthy,
- W. Gelletly,
- M.B. Gomez-Hornillos,
- T. Grahn,
- P.T. Greenlees,
- D.G. Jenkins,
- G.A. Jones,
- P. Jones,
- D.T. Joss,
- R. Julin,
- S. Juutinen,
- S. Ketelhut,
- S. Khan,
- A. Kishada,
- M. Leino,
- M. Niikura,
- M. Nyman,
- J. Pakarinen,
- S. Pietri,
- Z. Podolyak,
- P. Rahkila,
- S. Rigby,
- J. Saren,
- T. Shizuma,
- J. Sorri,
- S. Steer,
- J. Thomson,
- N.J. Thompson,
- J. Uusitalo,
- P.M. Walker,
- S. Williams,
- H.F. Zhang,
- W.Q. Zhang,
- L.H. Zhu
Affiliations
- F. Wang
- School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China
- B.H. Sun
- School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China
- Z. Liu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- R.D. Page
- Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, UK
- C. Qi
- KTH, Alba Nova University Center, SE-10691 Stockholm, Sweden
- C. Scholey
- University of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 University of Jyvaskyla, Finland
- S.F. Ashley
- Department of Physics, University of Surrey, Guildford, Surrey GU2 7XH, UK
- L. Bianco
- Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, UK
- I.J. Cullen
- Department of Physics, University of Surrey, Guildford, Surrey GU2 7XH, UK
- I.G. Darby
- Department of Nuclear Sciences and Applications, International Atomic Energy Agency, A-1400 Vienna, Austria
- S. Eeckhaudt
- University of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 University of Jyvaskyla, Finland
- A.B. Garnsworthy
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
- W. Gelletly
- Department of Physics, University of Surrey, Guildford, Surrey GU2 7XH, UK
- M.B. Gomez-Hornillos
- Universitat Politécnica de Catalunya (UPC), 08034 Barcelona, Spain
- T. Grahn
- University of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 University of Jyvaskyla, Finland
- P.T. Greenlees
- University of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 University of Jyvaskyla, Finland
- D.G. Jenkins
- Department of Physics, University of York, Heslington, York, UK YO10 5DD, UK
- G.A. Jones
- Department of Physics, University of Surrey, Guildford, Surrey GU2 7XH, UK
- P. Jones
- iThemba LABS, National Research Foundation, PO Box 722, Somerset West, South Africa
- D.T. Joss
- Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, UK
- R. Julin
- University of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 University of Jyvaskyla, Finland
- S. Juutinen
- University of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 University of Jyvaskyla, Finland
- S. Ketelhut
- University of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 University of Jyvaskyla, Finland
- S. Khan
- Schuster Building, School of Physics and Astronomy, University of Manchester, Manchester M13 9PL, UK
- A. Kishada
- Schuster Building, School of Physics and Astronomy, University of Manchester, Manchester M13 9PL, UK
- M. Leino
- University of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 University of Jyvaskyla, Finland
- M. Niikura
- CNS, University of Tokyo, Tokyo 351-0100, Japan
- M. Nyman
- European Commission, Joint Research Centre, Institute for Reference Materials and Measurements, Retieseweg 111, B-2440 Geel, Belgium
- J. Pakarinen
- Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, UK
- S. Pietri
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany
- Z. Podolyak
- Department of Physics, University of Surrey, Guildford, Surrey GU2 7XH, UK
- P. Rahkila
- University of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 University of Jyvaskyla, Finland
- S. Rigby
- Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, UK
- J. Saren
- University of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 University of Jyvaskyla, Finland
- T. Shizuma
- Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
- J. Sorri
- University of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 University of Jyvaskyla, Finland
- S. Steer
- Department of Physics, University of Surrey, Guildford, Surrey GU2 7XH, UK
- J. Thomson
- Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, UK
- N.J. Thompson
- Department of Physics, University of Surrey, Guildford, Surrey GU2 7XH, UK
- J. Uusitalo
- University of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 University of Jyvaskyla, Finland
- P.M. Walker
- Department of Physics, University of Surrey, Guildford, Surrey GU2 7XH, UK
- S. Williams
- Nikhef National Institute for Subatomic Physics, University of Amsterdam, Amsterdam, Netherlands
- H.F. Zhang
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
- W.Q. Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- L.H. Zhu
- School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China
- DOI
- https://doi.org/10.1016/j.physletb.2017.04.034
- Journal volume & issue
-
Vol. 770,
no. C
pp. 83 – 87
Abstract
The quenching of the experimental spectroscopic factor for proton emission from the short-lived d3/2 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.
Keywords
- Proton emitter
- Recoil-decay tagging
- Spectroscopic factor
- Proton formation probability
- WKB approximation
- A=151
