Hiroki Takemoto
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View article: Microscopic study of the asymptotic behavior of the reduced width amplitude in $^7$Li and $^7$Be
Microscopic study of the asymptotic behavior of the reduced width amplitude in $^7$Li and $^7$Be Open
We investigate the effects of different basis model spaces on the calculation of reduced width amplitude (RWA) and asymptotic normalization coefficient (ANC) for the $^{7}$Li and $^{7}$Be nuclei. The two-cluster model ($α+t/^3$He) and thre…
View article: Cluster breaking and reconfiguration effects in 12 Lambda B hypernucleus
Cluster breaking and reconfiguration effects in 12 Lambda B hypernucleus Open
We investigate the cluster-breaking effect and spatial distribution of negative-parity states in the 12 Lambda B hypernucleus using the Hyper-Brink model with cluster-breaking(CB-Hyper-Brink) optimized via Control Neural Network (Ctrl.NN).…
View article: Investigation on resonances for 3n and 4n systems using realistic nuclear interaction and inverse analytical continuation in the coupling constant method
Investigation on resonances for 3n and 4n systems using realistic nuclear interaction and inverse analytical continuation in the coupling constant method Open
View article: Evidence for three-α breathing modes uncovered by control neural network
Evidence for three-α breathing modes uncovered by control neural network Open
This work introduces a new Control Neural Network (Ctrl.NN) method to uncover evidence of exotic quantum state, i.e., the breathing modes in 3-α resonant states of 12C nucleus. We provide the most precise microscopic description to date fo…
View article: Hypernuclear cluster states of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.svg"><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">B</mml:mi></mml:mrow><mml:mprescripts/><mml:mrow><mml:mi mathvariant="normal">Λ</mml:mi></mml:mrow><mml:mrow><mml:mn>12</mml:mn></mml:mrow></mml:mmultiscripts></mml:math> unveiled through neural network-driven microscopic calculation
Hypernuclear cluster states of unveiled through neural network-driven microscopic calculation Open
We investigate the hypernuclear cluster states of BΛ12 using a neural-network-driven microscopic model. We extend the Control Neural Networks (Ctrl.NN) method and systematically calculate the positive-parity spectrum of BΛ12. By incorporat…
View article: Cluster Configurations in Li Isotopes in the Variation of Multi-Bases of the Antisymmetrized Molecular Dynamics
Cluster Configurations in Li Isotopes in the Variation of Multi-Bases of the Antisymmetrized Molecular Dynamics Open
We investigate the cluster configurations in Li isotopes, which are described in the optimization of the multi-Slater determinants of the antisymmetrized molecular dynamics. Each Slater determinant in the superposition is determined simult…
View article: Evidence for Three-$α$ Breathing Modes Uncovered by Control Neural Network
Evidence for Three-$α$ Breathing Modes Uncovered by Control Neural Network Open
This work introduces a new Control Neural Network (Ctrl.NN) method to uncover evidence of exotic quantum state, \textit{i.e.}, the breathing modes in 3-$α$ resonant states of $^{12}$C nucleus. We provide the most precise microscopic descri…
View article: Lambda motion and cluster states of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.svg"><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">Be</mml:mi></mml:mrow><mml:mprescripts/><mml:mrow><mml:mi mathvariant="normal">Λ</mml:mi></mml:mrow><mml:mrow><mml:mn>9</mml:mn><mml:mo linebreak="badbreak" linebreakstyle="after">−</mml:mo><mml:mn>11</mml:mn></mml:mrow></mml:mmultiscripts></mml:math> predicted via neural networks guided microscopic calculation
Lambda motion and cluster states of predicted via neural networks guided microscopic calculation Open
We investigate the Λ particle motion and cluster states of BeΛ9−11 using a novel multiple cooling approach guided by the Control Neural Networks method (Ctrl.NN). The numerical results are well reproduced, and the Ctrl.NN method shows rapi…
View article: Variation of multi-Slater determinants in antisymmetrized molecular dynamics and its application to $^{10}$Be with various clustering
Variation of multi-Slater determinants in antisymmetrized molecular dynamics and its application to $^{10}$Be with various clustering Open
We propose a method to optimize the multi-Slater determinants of the antisymmetrized molecular dynamics (AMD) in the linear combination form and apply it to the neutron-rich $^{10}$Be nucleus. The individual Slater determinants and their w…
View article: Resonances and scattering in microscopic cluster models with the complex-scaled generator coordinate method
Resonances and scattering in microscopic cluster models with the complex-scaled generator coordinate method Open
The generator coordinate method of a microscopic cluster model is developed to treat the resonance and scattering of nuclear clusters with complex scaling. We consistently derive the formulation of the complex scaling for the microscopic c…
View article: Finite particle-number description of symmetric nuclear matter with spin excitations of high-momentum pairs induced by the tensor force
Finite particle-number description of symmetric nuclear matter with spin excitations of high-momentum pairs induced by the tensor force Open
We study the symmetric nuclear matter using bare nucleon-nucleon ($NN$)\ninteractions with finite particle-number approach within finite cubic boxes.\nDue to the $NN$ correlations originating from bare $NN$ interaction, two\nnucleons can b…
View article: Role of tensor interaction as salvation of cluster structure in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Ti</mml:mi><mml:mprescripts/><mml:none/><mml:mn>44</mml:mn></mml:mmultiscripts></mml:math>
Role of tensor interaction as salvation of cluster structure in Open
Background: The $^{44}$Ti nucleus has been known to have a $^{40}$Ca+$\\alpha$\ncluster structure, and inversion doublet structure has been observed; however,\n$\\alpha$ cluster structure tends to be washed out when the breaking of the\n$\…
View article: New many-body method using cluster expansion diagrams with tensor-optimized antisymmetrized molecular dynamics
New many-body method using cluster expansion diagrams with tensor-optimized antisymmetrized molecular dynamics Open
We propose a new many-body method based on the correlation functions, in\nwhich the multiple products of the correlation functions are expanded into the\nmany-body diagrams using the cluster expansion method and every diagram is\nindepende…
View article: Role of the unitary correlation operator on high-momentum antisymmetrized molecular dynamics using the bare <i>NN</i> interaction for 3H and 4He
Role of the unitary correlation operator on high-momentum antisymmetrized molecular dynamics using the bare <i>NN</i> interaction for 3H and 4He Open
We extend high-momentum antisymmetrized molecular dynamics (HMAMD) by incorporating the short-range part of the unitary correlation operator method (UCOM) as the variational method of finite nuclei. In this HMAMD+UCOM calculation of light …
View article: Role of unitary correlation operator on high-momentum antisymmetrized molecular dynamics using bare NN interaction for 3H and 4He
Role of unitary correlation operator on high-momentum antisymmetrized molecular dynamics using bare NN interaction for 3H and 4He Open
We extend the high-momentum antisymmetrized molecular dynamics (HMAMD) by incorporating the short-range part of the unitary correlation operator method (UCOM) as the variational method of finite nuclei. In this HMAMD+UCOM calculation of li…
View article: Variational calculation of nuclear matter in a finite particle number approach using the unitary correlation operator and high-momentum pair methods
Variational calculation of nuclear matter in a finite particle number approach using the unitary correlation operator and high-momentum pair methods Open
We propose a new variational method for describing nuclear matter from\nnucleon-nucleon interaction. We use the unitary correlation operator method\n(UCOM) for central correlation to treat the short-range repulsion and further\ninclude the…