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Spectroscopic factor and proton formation probability for the d3/2 proton emitter 151mLu

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Author(s)

  • 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
  • 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
  • L. H. Zhu

Department/unit(s)

Publication details

JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
DateAccepted/In press - 17 Apr 2017
DateE-pub ahead of print - 20 Apr 2017
DatePublished (current) - 10 Jul 2017
Volume770
Number of pages5
Pages (from-to)83-87
Early online date20/04/17
Original languageEnglish

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.

Bibliographical note

©2017 The Authors

    Research areas

  • A=151, Proton emitter, Proton formation probability, Recoil-decay tagging, Spectroscopic factor, WKB approximation

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