Abstract
We review structure data obtained by decay spectroscopy of neutron-rich nuclei of mass close to 100. Emphasis is put on the contribution of experiments at IGISOL in the nineties. They confirmed the earlier postulated shape coexistence in the fast shape-transition region between N = 58 (spherical ground states and low collectivity) and N = 60 (strong axial deformation). A detailed spectroscopic study of the A = 99 chain established the upper-Z limit of the N = 56 shell closure region with 99Nb, owing to striking similarities with 97Y. A consequence of the N = 56 closure is that the s 1/2 odd-neutron becomes the ground state of the most neutron-rich N = 57 isotones, starting with 99Mo, instead of the degenerated d 5/2 and g7/2 subshells familiar in the tin region. Consequences on the change of spin on astrophysical rprocess calculations are briefly discussed. Finally, we say a few words about neutronrich rhodium and palladium isotopes near the neutron midshell where regular and intruder states coexist very close to each other.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Hotchkis, M.A.C., et al.: Nucl. Phys. A 530, 111 (1991)
Brant, S., Lhersonneau, G., Sistemich, K.: Phys. Rev. C 69, 034327 (2005)
Meyer, R.A., et al.: Nucl. Phys. A 439, 510 (1985)
Mach, H., et al.: Phys. Rev. C 41, 1141 (1990)
Lhersonneau, G., et al.: Z. Phys. A 323, 59 (1986)
Lhersonneau, G., et al.: Z. Phys. A 337, 149 (1990)
Hamilton, J.H., et al.: Progr. Part. Nucl. Phys. 35, 635 (1995)
Lhersonneau, G., et al.: Phys. Rev. C 63, 054302 (2001)
Lhersonneau, G., et al.: Z. Phys. A 352, 293 (1995)
Lhersonneau, G., et al.: Z. Phys. A 351, 357 (1995)
Lhersonneau, G., et al.: Phys. Rev. C 65, 024318 (2002)
Pfeiffer, B., et al.: Z. Phys. A 353, 1 (1995)
Buchinger, F., et al.: Phys. Rev. C 41, 2883 (1990)
Buchinger, F., et al.: Phys. Rev. C 42, 2754 (1990) (erratum)
Lhersonneau, G., et al.: Phys. Rev. C 49, 1379 (1994)
Lhersonneau, G., et al.: Phys. Rev. C 56, 2445 (1997)
Urban, W., et al.: Eur. Phys. J. A 16, 11 (2003)
Hwang, J. K., et al.: Phys. Rev. C 67, 054304 (2003)
Lhersonneau, G., et al.: Phys. Rev. C 57, 2974 (1998)
Lhersonneau, G., et al.: Phys. Rev. C 57, 681 (1998)
Campbell, P.: Hyperfine Interact. 171, 143 (2006)
Lhersonneau, G., et al.: Phys. Rev. C 54, 1117 (1996)
Matejska-Minda, M., et al.: Phys. Rev. C 80, 017302 (2009)
Lhersonneau, G., Brant, S., Paar, V.: Phys. Rev. C 62, 044304 (2000)
Lhersonneau, G., et al.: Phys. Rev. C 63, 034316 (2001)
Marginean, N., et al.: Phys. Rev. C 80, 021301 (2009)
Mehren, T., et al.: Phys. Rev. Lett. 77, 458 (1996)
Wang, J.C., et al.: Phys. Lett. 454B, 1 (1999)
Lhersonneau, G., et al.: Phys. Rev. C 54, 1592 (1996)
Liang, M., et al.: Z. Phys. A 351, 13 (1995)
Urban, W., et al.: Phys. Rev. C 79, 067301 (2009)
Lhersonneau, G., et al.: Eur. Phys. J. A 1, 285 (1998)
Lhersonneau, G., et al.: Phys. Rev. C 60, 014315 (1999)
Kurpeta, J., et al.: Eur. Phys. J. A 33, 307 (2007)
Lhersonneau, G., et al.: Phys. Rev. C 67, 024303 (2003)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2012 Springer Science+Business Media B.V.
About this chapter
Cite this chapter
Lhersonneau, G., Pfeiffer, B., Kratz, KL. (2012). Decay spectroscopy of neutron-rich nuclei with A \( \simeq \) 100. In: Äystö, J., Eronen, T., Jokinen, A., Kankainen, A., Moore, I.D., Penttilä, H. (eds) Three decades of research using IGISOL technique at the University of Jyväskylä. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-5555-0_11
Download citation
DOI: https://doi.org/10.1007/978-94-007-5555-0_11
Published:
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-007-5554-3
Online ISBN: 978-94-007-5555-0
eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)