Isomeric 0- halo-states in Be-12 and Li-11 - INSPIRE

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Isomeric 0- halo-states in Be-12 and Li-11

C. Romero-Redondo
(
- Madrid, Inst. Estructura Materia
)
,
E. Garrido
(
- Madrid, Inst. Estructura Materia
)
,
D.V. Fedorov
(
- Aarhus U.
)
,
A.S. Jensen
(
- Aarhus U.
)

Dec, 2007

5 pages

Published in:

Phys.Lett.B 660 (2008) 32-36

e-Print:

0712.0698 [nucl-th]

DOI:

10.1016/j.physletb.2007.12.014

View in:

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Abstract: (Elsevier)

We predict the existence of an isomeric 0 − -state in 12 Be at an excitation energy of about 2.5 MeV , and a 0 − -resonance in 11 Li with both energy and width of about 1 MeV corresponding to two-neutron emission. The structure of these halo-like states are like the 1 − -states which means essentially a core surrounded by two neutrons in single-particle s - and p -states. The life-time of the 12 Be state is determined by M 1- or M 2-emission, τ(M1)≈10−11 s or τ(M2)≈10−8 s estimated for photon energies of 0.1 MeV and 0.6 MeV , respectively.

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References(30)

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(
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)
,
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(
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)
,
A.S. Jensen
(
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)

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(
- Madrid, Inst. Estructura Materia
)
,
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(
- Aarhus U.
)
,
A.S. Jensen
(
- Aarhus U.
)

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•
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•
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