Spectroscopy of the proton drip-line nucleus 203Fr
Jakobsson, U., Juutinen, S., Uusitalo, J., Leino, M., Auranen, K., Enqvist, T., Greenlees, P., Hauschild, K., Jones, P., Julin, R., Ketelhut, S., Kuusiniemi, P., Nyman, M., Peura, P., Rahkila, P., Ruotsalainen, P., Sarén, J., Scholey, C., & Sorri, J. (2013). Spectroscopy of the proton drip-line nucleus 203Fr. Physical Review C, 87(5), Article 054320. https://doi.org/10.1103/PhysRevC.87.054320
Published inPhysical Review C
© 2013 American Physical Society. Published in this repository with the kind permission of the publisher.
The nucleus 203Fr has been studied through γ -ray and electron spectroscopy, using the recoil-decay tagging technique. A 13/2+ state, with a half-life of 0.37(5) μs, has been observed in 203Fr. Both the α-decay branch and the internal de-excitation of the 1/2+ isomer in 203Fr have been studied. Furthermore, the corresponding 1/2+ state, with a half-life of 0.31(8) s, has been found in 199At. In addition, transitions feeding the 9/2− ground state of 203Fr have been identified. The observed level pattern suggests that the ground state is still spherical.
PublisherAmerican Physical Society
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