RESONANCES AND CONTINUUMS IN THE THREE-BODY BREAKUP OF  HALO NUCLEI WITH THE COMPLEX SCALING METHOD

We investigate the three-body Coulomb breakup reaction of two-neutron halo nuclei 11 Li , where we adopt the extended three-body model of 11 Li with paying attention to the pairing correlation of the nuclei, and also employ the complex scaling method (CSM) to solve the three-body unbound states of 11 Li . From the results, we cannot find any dipole resonances, at least, having small decay widths. This means that the breakup strength is exhausted by the continuum states. We compare the obtained strength showing the low energy enhancement to the several experimental data.

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Three-alpha resonant state and its contribution in continuum spectrum

Modern Physics Letters A ◽

10.1142/s0217732306021980 ◽

2006 ◽

Vol 21 (31n33) ◽

pp. 2351-2358

Author(s):

C. Kurokawa ◽

K. Katō

Keyword(s):

Boundary Condition ◽

Resonant State ◽

Level Density ◽

Complex Scaling ◽

Scaling Method ◽

Complex Scaling Method ◽

Resonant States ◽

Complex Eigenvalues ◽

Three Body ◽

The Continuum

The 3α resonant states of 12 C are investigated by taking into account the correct boundary condition for three-body resonant states. In order to show how the 3α resonant states having complex eigenvalues contribute to the real energy, we calculated the Continuum Level Density in the Complex Scaling Method.

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Structure of continuum states and srength function in the complex scaling method

EPJ Web of Conferences ◽

10.1051/epjconf/202023904003 ◽

2020 ◽

Vol 239 ◽

pp. 04003

Author(s):

Myagmarjav Odsuren ◽

Gonchigdorj Khuukhenkhuu ◽

Sarsembayeva Aiganym ◽

Suren Davaa ◽

Batsaikhan Usukhbayar

Keyword(s):

Cross Section ◽

Level Density ◽

Scattering Cross Section ◽

Complex Scaling ◽

Scaling Method ◽

Complex Scaling Method ◽

Continuum States ◽

Body Model ◽

Scattering Cross

We present our recent results of the mirror nuclei 5He and 5Li obtained by analyzing structure of continuum states in the complex scaled α + N two-body model. Decomposed scattering cross section and continuum level density of α + N system are discussed.

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Three-body Coulomb breakup of 11Li in the complex scaling method

Physics Letters B ◽

10.1016/j.physletb.2003.10.011 ◽

2003 ◽

Vol 576 (3-4) ◽

pp. 281-288 ◽

Cited By ~ 33

Author(s):

Takayuki Myo ◽

Shigeyoshi Aoyama ◽

Kiyoshi Katō ◽

Kiyomi Ikeda

Keyword(s):

Complex Scaling ◽

Scaling Method ◽

Coulomb Breakup ◽

Complex Scaling Method ◽

Three Body

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ANALYSIS ON TWO-NEUTRON CORRELATION THROUGH DALITZ PLOT OF COULOMB BREAKUP REACTION FOR 6He

International Journal of Modern Physics E ◽

10.1142/s021830130801163x ◽

2008 ◽

Vol 17 (10) ◽

pp. 2368-2373

Author(s):

YUMA KIKUCHI ◽

KIYOSHI KATŌ ◽

TAKAYUKI MYO ◽

MASAAKI TAKASHINA ◽

KIYOMI IKEDA

Keyword(s):

Breakup Reaction ◽

Transition Strength ◽

Complex Scaling ◽

Scaling Method ◽

Sequential Decay ◽

Coulomb Breakup ◽

Complex Scaling Method ◽

Decaying States ◽

Three Body ◽

Transition Reaction

A new method to describe the three-body decaying states is developed. In this method, the Lippmann–Schwinger equation is combined with the complex scaling method to take the correct boundary condition into account. For the application, the E1 transition strength of 6 He is investigated. The energy and Dalitz distributions of the E1 transition are calculated, and the internal correlation of 6 He is discussed. As results, it is found that the 6 He → 5 He (3/2-)+n → 4 He +n+n sequential decay process is dominant in the E1 transition reaction of 6 He .

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RESONANCES AND CONTINUUM STATES OF HALO NUCLEI USING THE COMPLEX SCALING METHOD

International Journal of Modern Physics E ◽

10.1142/s0218301311018800 ◽

2011 ◽

Vol 20 (04) ◽

pp. 839-842

Author(s):

TAKAYUKI MYO ◽

KIYOSHI KATŌ

Keyword(s):

Shell Model ◽

Halo Nuclei ◽

Complex Scaling ◽

Scaling Method ◽

Complex Scaling Method ◽

Continuum States ◽

Spectroscopic Factors ◽

He Isotopes ◽

Neutron Pair ◽

Pair Coupling

The resonances and continuum states of He isotopes are investigated using the cluster orbital shell model with the complex scaling method. We discuss the following subjects; 1) spectroscopic factors of 7 He into the 6 He -n components, and 2) five-body 0+ resonance of 8 He and its structure from the viewpoint of the neutron-pair coupling.

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COUPLED-CHANNELS ANALYSES OF 6He BREAKUP REACTIONS

International Journal of Modern Physics A ◽

10.1142/s0217751x09045789 ◽

2009 ◽

Vol 24 (11) ◽

pp. 2191-2197 ◽

Cited By ~ 2

Author(s):

T. MATSUMOTO ◽

T. EGAMI ◽

K. OGATA ◽

Y. ISERI ◽

M. KAMIMURA ◽

...

Keyword(s):

Cross Sections ◽

Reaction System ◽

Basis Functions ◽

Coulomb Breakup ◽

Body Model ◽

Coupled Channels ◽

Gaussian Basis Functions ◽

Three Body ◽

Good Agreement ◽

The Continuum

We present analyses of breakup effects of 6 He on the elastic scattering by the continuum-discretized coupled-channels method, in which the reaction system is described as a four-body model, n+n+4 He +target. In this analysis, three-body breakup continuum of 6 He is discretized by daiagonalizing the internal Hamiltonian of 6 He in a space spanned by the Gaussian basis functions. The calculated elastic cross sections are in good agreement with the experimental data, which shows that nuclear and Coulomb breakup effects are significant.

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ELECTRO-WEAK TRANSITIONS OF 4He USING REALISTIC NUCLEAR INTERACTIONS

International Journal of Modern Physics E ◽

10.1142/s0218301311018666 ◽

2011 ◽

Vol 20 (04) ◽

pp. 781-784 ◽

Cited By ~ 1

Author(s):

WATARU HORIUCHI ◽

YASUYUKI SUZUKI ◽

TORU SATO

Keyword(s):

Weak Interactions ◽

Nuclear Interaction ◽

Transition Strength ◽

Final States ◽

Complex Scaling ◽

Dipole Strength ◽

Scaling Method ◽

Complex Scaling Method ◽

Continuum States ◽

Explicitly Correlated

In this contribution we discuss electro-weak induced transitions involving 4 He . The wave function of the ground state is obtained accurately using an explicitly correlated basis with a realistic nuclear interaction. Four-body final states are expressed in a superposition of many basis functions which contain important configurations for the low-lying transition strength. Resonant and continuum states are treated properly in the complex scaling method. The discussion is mainly focused on the electric dipole strength. Also, we mention those transitions induced by the weak interactions which are important for a neutrino-nucleus reaction.

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