CNRS Université Paris-Sud 11



Rechercher

Sur ce site

Sur le Web du CNRS

CSNSM - UMR8609
Bâtiments 104 et 108
91405 Orsay Campus

+33 1 69 15 52 13
104 +33 1 69 15 50 08
108 +33 1 69 15 52 68
Mentions légales

Accueil > Séminaires > Séminaires passés > Challenges and opportunities in the structure of the heaviest self-conjugate nuclei

Bo Cederwall

Challenges and opportunities in the structure of the heaviest self-conjugate nuclei

Jeudi 02 Juillet 2015 à 14h00 C.S.N.S.M. - Bât. 108 - Salle de réunion

The talk will review various, mainly experimental, aspects of enhanced neutron-proton correlation phenomena, including collective excitation modes and pairing, in nuclei along the N=Z line, approaching 100Sn. In this unique region of the nuclear chart a rather complex picture of neutron-proton pair correlations is beginning to emerge [1]. The search for isoscalar BCS-type pairing [2,3] and investigations of the new spin-aligned isoscalar neutron-proton “paired phase” [4,5] in the A=90-100 mass region will be discussed. The talk will cover different experimental approaches and an outlook, with an emphasis on gamma-ray spectroscopic methods.

[1] Frauendorf, S. & Macchiavelli, A.O. Overview of neutron-proton pairing. Prog. Part. Nucl. Phys. Lett. 78, 24–90 (2014)
[2] Engel, J., Langanke, K. & Vogel, P. Pairing and isospin symmetry in proton-rich nuclei. Phys. Lett. B 389, 211–216 (1996)
[3] Civitarese, O., Reboiro, M.& Vogel, P. Neutron-proton pairing in the BCS approach. Phys. Rev. C 56, 1840–1843 (1997)
[4] Cederwall, B. et al. Evidence for a spin-aligned neutron-proton paired phase from the level structure of 92Pd . Nature 469, 68–71 (2011)
[5] Qi, C. et al. Spin-aligned neutron-proton pair mode in atomic nuclei. Phys. Rev. C 84, 021301 (2011)

Post-scriptum :

Renseignements CSNSM : Hélène le Sueur/ Stéphanie Roccia 01 69 15 52 25/52 15