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Prog. Theor. Phys. Vol. 99 No. 4 (1998) pp. 623-634
The Mechanism of the Anomalous Energy Shift between \voldmaths-States in Mirror Nuclei with a Halo Structure
Shigeyoshi Aoyama,
Kiyoshi Katō and
Kiyomi Ikeda*
Graduate School of Science, Hokkaido University, Sapporo 060, Japan
*Department of Physics, Niigata University, Niigata 950-21, Japan
(Received January 12, 1998)
Abstract:
A mechanism of the anomalous energy shift
between s-states in mirror nuclei
is investigated by using the complex scaling method (CSM).
The s-states are described by
a resonant core+p system and
by a loosely bound core+n system,
where the latter reproduces a neutron halo structure.
To understand the mechanism of the anomalous energy shift appearing
in the resonant s-state of the core+p system,
we pick out the complex expectation values
of the Coulomb potential and kinetic
energy operators from the Hamiltonian
for resonant states, using
the procedure recently developed in the framework of the CSM.
We find that
the kinetic energy reduction is large,
in addition to the Coulomb energy reduction in the ordinary
Thomas-Ehrman shift.
As a result,
a large energy shift is reasonably explained by
the combination of two mechanisms of
the kinetic energy reduction and
the Coulomb energy reduction.
URL :
http://ptp.ipap.jp/link?PTP/99/623/
DOI : 10.1143/PTP.99.623
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Citing Article(s) :
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Progress of Theoretical Physics Vol. 102 No. 6 (1999) pp. 1119-1131
:
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Partial Decay Widths in Coupled-Channel Systems with the Complex-Scaled Jost Function Method
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Hiroshi Masui, Shigeyoshi Aoyama, Takayuki Myo and Kiyoshi Katō
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Progress of Theoretical Physics Supplement No.142 (2001) pp. 35-95
:
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Three-Body Binding and Resonant Mechanisms in Neutron-Rich Light Nuclei Far from Stability Line
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Shigeyoshi Aoyama, Kiyoshi Katō and Kiyomi Ikeda
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Progress of Theoretical Physics Supplement No.142 (2001) pp. 355-397
:
-
Single Particle Properties of Nuclei on and beyond the Drip Line
-
Atsushi Muta and Takaharu Otsuka
