Details

Autor(en) / Beteiligte

• Sandzelius, M
• Hadinia, B
• Cederwall, B
• Andgren, K
• Ganioğlu, E
• Darby, I G
• Dimmock, M R
• Eeckhaudt, S
• Grahn, T
• Greenlees, P T
• Ideguchi, E
• Jones, P M
• Joss, D T
• Julin, R
• Juutinen, S
• Khaplanov, A
• Leino, M
• Nelson, L
• Niikura, M
• Nyman, M
• Page, R D
• Pakarinen, J
• Paul, E S
• Petri, M
• Rahkila, P
• Sarén, J
• Scholey, C
• Sorri, J
• Uusitalo, J
• Wadsworth, R
• Wyss, R

Titel

Identification of excited states in the T(z) = 1 nucleus (110)Xe: evidence for enhanced collectivity near the N=Z=50 double shell closure

Ist Teil von

• Physical review letters, 2007-07, Vol.99 (2), p.022501-022501

Ort / Verlag

United States

Erscheinungsjahr

2007

Quelle

PROLA

Beschreibungen/Notizen

• Gamma-ray transitions have been identified for the first time in the extremely neutron-deficient (N=Z+2) nucleus (110)Xe, and the energies of the three lowest excited states in the ground-state band have been deduced. The results establish a breaking of the normal trend of increasing first excited 2(+) and 4(+) level energies as a function of the decreasing neutron number as the N=50 major shell gap is approached for the neutron-deficient Xe isotopes. This unusual feature is suggested to be an effect of enhanced collectivity, possibly arising from isoscalar n-p interactions becoming increasingly important close to the N=Z line.