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NSR database version of May 24, 2024.

Search: Author = Y.Funaki

Found 62 matches.

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2024RO07      Eur.Phys.J. A 60, 89 (2024)

G.Ropke, C.Xu, B.Zhou, Z.Z.Ren, Y.Funaki, H.Horiuchi, M.Lyu, A.Tohsaki, T.Yamada

Alpha-like correlations in 20Ne, comparison of quartetting wave function and THSR approaches

NUCLEAR STRUCTURE 20Ne, 16O; calculated the overlap between the intrinsic wave functions of the quartet and the α-particle, energy curves, deformation parameter space, binding energies using the Tohsaki-Horiuchi-Schuck-Ropke (THSR) approach and shell model. Comparison with available data.

doi: 10.1140/epja/s10050-024-01305-7
Citations: PlumX Metrics


2023WU01      Phys.Rev. C 107, 014317 (2023)

Q.Wu, Y.Funaki, X.Chen

Cluster structures of the 0+ states of 13ΛC with the 3α + Λ four-body orthogonality condition model

NUCLEAR STRUCTURE 13C; calculated energy levels for Λ hypernuclei, J, π, structure of 0+states up to 3α+Λ, rms radii, monopole transition strength M(E0), reduced width amplitudes, S2 factor. Four body orthogonality condition model with model with the Gaussian expansion method for 3α+Λ system. Comparison to experimental data on 0+ states in 12C.

doi: 10.1103/PhysRevC.107.014317
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2022ZH08      Few-Body Systems 63, 26 (2022)

B.Zhou, Y.Funaki

Container picture for 3- and 4- states of 12C

NUCLEAR STRUCTURE 12C; calculated negative-parity states within the container picture; deduced the shift parameter to the THSR (Tohsaki-Horiuchi-Schuck-Ropke) wave functions, 3α cluster structure.

doi: 10.1007/s00601-021-01720-2
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2021FU03      Eur.Phys.J. A 57, 14 (2021)

Y.Funaki

Alpha condensate and dynamics of cluster formation

NUCLEAR STRUCTURE 20Ne, 12C, 16O; analyzed available data; deduced a new concept, "container" picture, to describe general cluster structures.

doi: 10.1140/epja/s10050-020-00321-7
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2021IN04      Prog.Theor.Exp.Phys. 2021, 093D01 (2021)

K.Inaba, Y.Sasamoto, T.Kawabata, M.Fujiwara, Y.Funaki, K.Hatanaka, K.Itoh, M.Itoh, K.Kawase, H.Matsubara, Y.Maeda, K.Suda, S.Sakaguchi, Y.Shimizu, A.Tamii, Y.Tameshige, M.Uchida, T.Uesaka, T.Yamada, H.P.Yoshida

Search for α condensed states in 13C using α inelastic scattering

NUCLEAR REACTIONS 12,13C(α, α'), E=388 MeV; measured reaction products, Eα, Iα. 12,13C; deduced σ(θ), level energies, J, π, resonance parameters, B(ISλ), a possible candidate for the α condensed state predicted by the cluster model calculations on the basis of the good correspondence between the experimental and calculated level structures. DWBA calculations. Research Center for Nuclear Physics (RCNP) in Osaka University.

doi: 10.1093/ptep/ptab102
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2717.


2021LY02      Eur.Phys.J. A 57, 51 (2021)

M.Lyu, Z.Ren, H.Horiuchi, B.Zhou, Y.Funaki, G.Ropke, P.Schuck, A.Tohsaki, C.Xu, T.Yamada

Properties of 8-11Be sotopes with isospin-dependent spin-orbit potential in a cluster approach

NUCLEAR STRUCTURE 8,9,10,11Be; calculated single nucleon wave functions, energy levels, J, π, one-neutron separation energies, root-mean-square radii and density distributions, spectroscopic factor. Tohsaki-Horiuchi-Schuck-Ropke (THSR) wave functions.

doi: 10.1140/epja/s10050-021-00363-5
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2020WU08      Phys.Rev. C 102, 054303 (2020)

Q.Wu, Y.Funaki, E.Hiyama, H.Zong

Resonant states of 9ΛBe with α + α + Λ three-body cluster model

NUCLEAR STRUCTURE 8,9Be; calculated levels, resonances, J, π for 9Be hypernucleus and 8Be in the framework of three-body α+α+Λ cluster model and the YNG-NF interaction with the Gaussian expansion method. Comparison with other theoretical calculations, and with experimental data from KEK-Tsukuba laboratory.

doi: 10.1103/PhysRevC.102.054303
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2020YA03      Phys.Rev. C 101, 024316 (2020)

S.Yang, C.Xu, G.Ropke, P.Schuck, Z.Ren, Y.Funaki, H.Horiuchi, A.Tohsaki, T.Yamada, B.Zhou

α decay to a doubly magic core in the quartetting wave function approach

NUCLEAR STRUCTURE 102Sn, 102,104Te, 210Pb, 210,212Po; calculated single-particle wave functions of protons and neutrons in the quartet, effective potentials of the α cluster, normalized bound state wave functions, scattering wave functions for α-emitters, α-cluster preformation probabilities and α-decay half-lives. Microscopic calculation of α-cluster formation using the quartetting wave function approach. Comparison with experimental data.

RADIOACTIVITY 102Sn, 102,104Te, 210Pb, 210,212Po(α); calculated α-cluster preformation probabilities and α-decay half-lives. Comparison with experimental half-lives.

doi: 10.1103/PhysRevC.101.024316
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2019LE10      Few-Body Systems 60, 30 (2019)

J.Lee, Q.Wu, Y.Funaki, H.Zong, E.Hiyama

Three-Body Structure of 9ΛBe with ααΛ Cluster Model

NUCLEAR STRUCTURE 9Be; calculated eigen energy distributions for the lowest states within the framework of α + α + Λ three-body model.

doi: 10.1007/s00601-019-1502-3
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2019YA24      Phys.Rev. C 100, 055501 (2019)

N.Yamanaka, T.Yamada, Y.Funaki

Nuclear electric dipole moment in the cluster model with a triton: 7Li and 11B

NUCLEAR STRUCTURE 7Li, 11B; calculated electric dipole moments (EDM) in the cluster model with α and triton clusters as degrees of freedom, deduced sensitivity to CP violation in terms of the chiral effective-field theory. Calculations based on treatment of 7Li and 11B nuclei in the two- and three-body problem, respectively, and used the Gaussian expansion method with the assumption of one-meson exchange P, CP-odd nuclear forces. 6,7Li, 9Be, 11B, 13C; deduced that EDMs of the ground states of 6,7Li, 9Be, 11B and the first 1/2+ state of 13C obey an approximate counting rule accounting for the EDM of the cluster and the α-N polarization. Discussed role in probing new physics beyond the standard model.

doi: 10.1103/PhysRevC.100.055501
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2019ZH24      Phys.Rev. C 99, 051303 (2019)

B.Zhou, Y.Funaki, H.Horiuchi, M.Kimura, Z.Ren, G.Ropke, P.Schuck, A.Tohsaki, C.Xu, T.Yamada

Nonlocalized motion in a two-dimensional container of α particles in 3- and 4- states of 12C

NUCLEAR STRUCTURE 12C; calculated level energies, Tohsaki-Horiuchi-Schuck-Ropke (THSR) wave functions, energy curves and contours, and density profiles of the first 3- and 4- states in 12C using container model. Comparison with generator coordinate method (GCM).

doi: 10.1103/PhysRevC.99.051303
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2019ZH33      Phys.Rev. C 100, 014306 (2019)

Q.Zhao, Z.Ren, M.Lyu, H.Horiuchi, Y.Kanada-En'yo, Y.Funaki, G.Ropke, P.Schuck, A.Tohsaki, C.Xu, T.Yamada, B.Zhou

Investigation of isospin-triplet and isospin-singlet pairing in the A=10 nuclei 10B, 10Be, and 10C with an extension of the Tohsaki-Horiuchi-Schuck-Ropke wave function

NUCLEAR STRUCTURE 10Be, 10B, 10C; calculated ground state energies, first 1+ energy in 10B, overlap between total wave function, molecular-orbit component, and pairing component, density distributions of valence nucleons, and average distance between nucleons, and optimized β parameters for the wave functions of ground states and first 1+ state in 10B. Tohsaki-Horiuchi-Schuck-Ropke (THSR) wave function, with and without pairing effects. Comparison with experimental data.

doi: 10.1103/PhysRevC.100.014306
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2018AD01      Phys.Rev. C 97, 014601 (2018)

S.Adachi, T.Kawabata, K.Minomo, T.Kadoya, N.Yokota, H.Akimune, T.Baba, H.Fujimura, M.Fujiwara, Y.Funaki, T.Furuno, T.Hashimoto, K.Hatanaka, K.Inaba, Y.Ishii, M.Itoh, C.Iwamoto, K.Kawase, Y.Maeda, H.Matsubara, Y.Matsuda, H.Matsuno, T.Morimoto, H.Morita, M.Murata, T.Nanamura, I.Ou, S.Sakaguchi, Y.Sasamoto, R.Sawada, Y.Shimizu, K.Suda, A.Tamii, Y.Tameshige, M.Tsumura, M.Uchida, T.Uesaka, H.P.Yoshida, S.Yoshida

Systematic analysis of inelastic α scattering off self-conjugate A=4n nuclei

NUCLEAR REACTIONS 12C, 16O, 20Ne, 24Mg, 28Si, 40Ca(α, α), (α, α'), E=130, 386 MeV; measured Eα, Iα, elastic and inelastic σ(θ, E) using Grand Raiden (GR) magnetic spectrometer with two multiwire drift chambers and two plastic scintillation counters at the AVF cyclotron of Research Center of Nuclear Physics (RCNP), Osaka University. 12C, 16O, 20Ne, 24Mg, 28Si, 40Ca; deduced levels, J, π, L transfers, EWSR strengths of the isoscalar dipole transitions. DWBA and coupled-channel (CC) analysis of σ(θ) distributions with the density-independent (DI) and density-dependent (DD) α-nucleus interactions.

doi: 10.1103/PhysRevC.97.014601
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2635. Data from this article have been entered in the XUNDL database. For more information, click here.


2018FU03      Phys.Rev. C 97, 021304 (2018)

Y.Funaki

"Container" evolution for cluster structures in 16O

NUCLEAR STRUCTURE 16O; calculated 0+ levels, rms charge radii and monopole matrix elements, contour maps and maxima of the squared overlaps between the 0+ states using the extended THSR wave functions for α+12C cluster and 4α tetrahedral shape of 16O, and by solving Hill-Wheeler equation. Comparison with experimental data.

doi: 10.1103/PhysRevC.97.021304
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2018ZH24      Phys.Rev. C 97, 054323 (2018)

Q.Zhao, Z.Ren, M.Lyu, H.Horiuchi, Y.Funaki, G.Ropke, P.Schuck, A.Tohsaki, C.Xu, T.Yamada, B.Zhou

Investigation of the 9B nucleus and its cluster-nucleon correlations

NUCLEAR STRUCTURE 9B; calculated levels, J, π, 3/2- rotational band levels, rms radii of six levels, density distributions of valence proton, energy of the 1/2+ excited state. New superposed Tohsaki-Horiuchi-Schuck-Ropke (THSR) wavefunction for cluster-correlated dynamics of valence nucleons. Comparison with experimental values and, with other theoretical predictions.

doi: 10.1103/PhysRevC.97.054323
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2017FU10      Phys.Lett. B 773, 336 (2017)

Y.Funaki, M.Isaka, E.Hiyama, T.Yamada, K.Ikeda

Multi-cluster dynamics in 13ΛC and analogy to clustering in 12C

NUCLEAR STRUCTURE 12,13C; calculated hypernuclei level energies, J, π, rms radii, parameters. Comparison with available data.

doi: 10.1016/j.physletb.2017.08.048
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2017XU03      Phys.Rev. C 95, 061306 (2017)

C.Xu, G.Ropke, P.Schuck, Z.Ren, Y.Funaki, H.Horiuchi, A.Tohsaki, T.Yamada, B.Zhou

a-cluster formation and decay in the quartetting wave function approach

RADIOACTIVITY 190,192,194,196,198,200,202,204,206,208,210,212,214,216,218Po, 210Pb, 214Rn, 216Ra, 218Th, 260Sg, 264,268Hs, 270Ds, 286,288Fl, 290,292Lv, 294Og(α); calculated α-cluster preformation probabilities, comparison of experimental and theoretical half-lives. Microscopic calculations for α-cluster formation using quartetting wave function approach.

doi: 10.1103/PhysRevC.95.061306
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2017YA19      Phys.Rev. C 95, 065503 (2017)

N.Yamanaka, T.Yamada, E.Hiyama, Y.Funaki

Electric dipole moment of 13C

NUCLEAR STRUCTURE 13C; calculated electric dipole moment (EDM) using the isovector charge conjugation-parity (CP)-odd pion exchange nuclear force in the α-cluster model; deduced role of structure of 13C in the enhancement of the EDM; and in turn discussed the role of the EDM of 13C in determining the new physics beyond the standard model.

doi: 10.1103/PhysRevC.95.065503
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2016FU07      Phys.Rev. C 94, 024344 (2016)

Y.Funaki

Monopole excitation of the Hoyle state and linear-chain state in 12C

NUCLEAR STRUCTURE 12C; calculated level energies and wave functions of 0+ states above the second 0+ (Hoyle); deduced 3α cluster structure and linear chain, third and fourth 0+ states; discussed relationship with the Hoyle state, their similarities and differences. Microscopic α-cluster model, Tohsaki-Horiuchi-Schuck-Ropke (THSR) wave function.

doi: 10.1103/PhysRevC.94.024344
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2016LY03      Phys.Rev. C 93, 054308 (2016)

M.Lyu, Z.Ren, B.Zhou, Y.Funaki, H.Horiuchi, G.Ropke, P.Schuck, A.Tohsaki, C.Xu, T.Yamada

Investigation of 10Be and its cluster dynamics with the nonlocalized clustering approach

NUCLEAR STRUCTURE 10Be; calculated energies of the first two 0+ states, rms radii, rotational bands built on 0+ states, density distribution and correlations of two valence neutrons, dynamics of α clusters using Tohsaki-Horiuchi-Schuck-Ropke (THSR) wave functions. Comparison with experimental data.

doi: 10.1103/PhysRevC.93.054308
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2016SC21      Phys.Scr. 91, 123001 (2016)

P.Schuck, Y.Funaki, H.Horiuchi, G.Ropke, A.Tohsaki, T.Yamada

Alpha particle clusters and their condensation in nuclear systems

doi: 10.1088/0031-8949/91/12/123001
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2016XU01      Phys.Rev. C 93, 011306 (2016)

C.Xu, Z.Ren, G.Ropke, P.Schuck, Y.Funaki, H.Horiuchi, A.Tohsaki, T.Yamada, B.Zhou

α-decay width of 212Po from a quartetting wave function approach

RADIOACTIVITY 212Po(α); calculated preformation probability and decay half-life using different sets of effective c.m. potentials and implementing four-nucleon correlations. Comparison of calculated α-decay width with experimental value.

doi: 10.1103/PhysRevC.93.011306
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2015AK03      Phys.Rev. C 92, 022801 (2015)

T.Akahori, Y.Funaki, K.Yabana

Imaginary-time formalism for triple-α reaction rates

doi: 10.1103/PhysRevC.92.022801
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2015FU09      Phys.Rev. C 92, 021302 (2015)

Y.Funaki

Hoyle band and α condensation in 12C

NUCLEAR STRUCTURE 12C; calculated levels, J, π, binding energies, rms radii for mass distributions, partial α-decay widths, B(E2), monopole matrix elements M(E0), Hoyle band, 3α-, and 4α-condensate structures, S2 factors. Extended version of the so-called Tohsaki-Horiuchi-Schuck-Ropke (THSR) wave function. Comparison with experimental data.

doi: 10.1103/PhysRevC.92.021302
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2015HI06      Phys.Rev. C 92, 015205 (2015)

E.Hikota, Y.Funaki, E.Hiyama, M.Oka

Radiative capture reaction rate from ΛΛ to H dibaryon in the imaginary time method

doi: 10.1103/PhysRevC.92.015205
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2015LY01      Phys.Rev. C 91, 014313 (2015)

M.Lyu, Z.Ren, B.Zhou, Y.Funaki, H.Horiuchi, G.Ropke, P.Schuck, A.Tohsaki, C.Xu, T.Yamada

Investigation of 9Be from a nonlocalized clustering concept

NUCLEAR STRUCTURE 9Be; calculated levels, J, π, bands, contour maps of binding energy surface as function of β parameters, density distribution contour of the intrinsic ground state. Nonlocalized clustering calculations based on Tohsaki-Horiuchi-Schuck-Ropke (THSR) wave function with a new phase factor. Comparison with available experimental results.

doi: 10.1103/PhysRevC.91.014313
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2015YA16      Phys.Rev. C 92, 034326 (2015)

T.Yamada, Y.Funaki

α-cluster structures and monopole excitations in 13C

NUCLEAR STRUCTURE 13C; calculated energies, rms radii, C0 transition matrix elements, isoscalar monopole strengths, B(GT), B(E1), reduced width amplitudes, spectroscopic factors, occupation probabilities of single-α and neutron orbits for 1/2- and 1/2+ states. Hoyle analog state in 13C. Cluster model with full four-body 3α+n orthogonality condition model (OCM) calculation. 9Be; calculated low-lying levels by the 2α+n OCM calculation. Comparison with available experimental data.

doi: 10.1103/PhysRevC.92.034326
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2014FU10      Prog.Theor.Exp.Phys. 2014, 113D01 (2014)

Ya.Funaki, T.Yamada, E.Hiyama, B.Zhou, K.Ikeda

Container structure of alpha-alpha-Lambda clusters in 9-Lambda-Berylium

NUCLEAR STRUCTURE 9Be; calculated cluster hypernuclei structures, energy levels, J, π. Comparison with available data.

doi: 10.1093/ptep/ptu143
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2014HI01      Prog.Theor.Exp.Phys. 2014, 013D01 (2014)

E.Hiyama, Y.Funaki, N.Kaiser, W.Weise

Alpha-clustered hypernuclei and chiral SU(3) dynamics

NUCLEAR STRUCTURE 5He, 9Be, 13C; calculated hypernuclei nucleon density distributions, correlation between hypernuclear potential depth and the surface strength.

doi: 10.1093/ptep/ptt112
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2014RO20      Phys.Rev. C 90, 034304 (2014)

G.Ropke, P.Schuck, Y.Funaki, H.Horiuchi, Z.Ren, A.Tohsaki, C.Xu, T.Yamada, B.Zhou

Nuclear clusters bound to doubly magic nuclei: The case of 212Po

NUCLEAR STRUCTURE 212Po; calculated internal four-nucleon energy, Coulomb and isospin-dependent Woods-Saxon potentials, Thomas-Fermi density, Fermi energy, E(α). Shell model calculations with cluster formation in inhomogeneous nuclear systems, four-particle (α-like) correlations in doubly-magic 208Pb core. Tohsaki-Horiuchi-Schuck-Ropke wave function approach in shell-model calculations. Discussed different physics behavior of an α-like cluster as compared to a deuteron-like cluster.

doi: 10.1103/PhysRevC.90.034304
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2014su04      Phys.Rev.Lett. 112, 062501 (2014)

T.Suhara, Y.Funaki, B.Zhou, H.Horiuchi, A.Tohsaki

One-Dimensional α Condensation of α-Linear-Chain States in 12C and 16O

NUCLEAR STRUCTURE 12C, 16O; calculated energy curves for excited states, α linear chain wave functions, α clusters. Brink and Tohsaki-Horiuchi-Schuck-Ropke wave functions.

doi: 10.1103/PhysRevLett.112.062501
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2014ZH10      Phys.Rev. C 89, 034319 (2014)

B.Zhou, Y.Funaki, H.Horiuchi, Z.Ren, G.Ropke, P.Schuck, A.Tohsaki, C.Xu, T.Yamada

Nonlocalized cluster dynamics and nuclear molecular structure

NUCLEAR STRUCTURE 8Be, 12C, 20Ne; calculated levels, J, π, energy surfaces, density distributions, quadrupole moments using Tohsaki-Horiuchi-Schuck-Ropke (THSR) wave function. Container model. Nonlocalized cluster dynamics for 2α, 3α, and 16O+α cluster systems.

doi: 10.1103/PhysRevC.89.034319
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2014ZH33      Prog.Theor.Exp.Phys. 2014, 101D01 (2014)

B.Zhou, Y.Funaki, A.Tohsaki, H.Horiuchi, Z.Ren

The container picture with two-alpha correlation for the ground state of 12C

NUCLEAR STRUCTURE 12C; calculated ground state energies, energy surfaces. THSR (Tohsaki-Horiuchi-Schuck-Ropke) wavefunctions.

doi: 10.1093/ptep/ptu127
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2013FU09      Phys.Rev. C 88, 014321 (2013)

Y.Fukuoka, S.Shinohara, Y.Funaki, T.Nakatsukasa, K.Yabana

Deformation and cluster structures in 12C studied with configuration mixing using Skyrme interactions

NUCLEAR STRUCTURE 12C; calculated levels, J, π, B(E2), B(E3), E0 transition probability, mass rms radius of excited states, elastic form factor for E0 transitions, Slater determinants, nuclear density contour plots. Coupling between shell-model and cluster configurations. Configuration-mixing method with different parameters of Skyrme interaction. Three-α linear-chain configuration of second excited 0+ state. Comparison with previous theoretical studies, and with experimental data.

doi: 10.1103/PhysRevC.88.014321
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2013FU11      Nucl.Phys. A914, 194c (2013)

Y.Funaki, T.Yamada, E.Hiyama, K.Ikeda

Alpha-particle condensation in light hypernuclei

NUCLEAR STRUCTURE 12C, 13C. 13C hypernucleus calculated α-particle occupation probability for specified hypernucleus single-α-orbits vs radius using α-condensate-type microscopic model.

doi: 10.1016/j.nuclphysa.2013.05.012
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2013ZH25      Phys.Rev.Lett. 110, 262501 (2013)

B.Zhou, Y.Funaki, H.Horiuchi, Z.Ren, G.Ropke, P.Schuck, A.Tohsaki, C.Xu, T.Yamada

Nonlocalized Clustering: A New Concept in Nuclear Cluster Structure Physics

NUCLEAR STRUCTURE 20Ne; calculated energy surfaces, levels, J, π. The Tohsaki-Horiuchi-Schuck-Ropke (THSR) wave function, α+16O resonating group method.

doi: 10.1103/PhysRevLett.110.262501
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2012FU10      Prog.Theor.Phys.(Kyoto), Suppl. 196, 439 (2012)

Y.Funaki, T.Yamada, H.Horiuchi, G.Ropke, P.Schuck, A.Tohsaki

Alpha Cluster States and Condensation in 16O

NUCLEAR STRUCTURE 16O, 12C, 20Ne; calculated energy spectra, J, π, rotational band of the α+Hoyle state. Orthogonality condition model and Gauss expansion method calculations.

doi: 10.1143/PTPS.196.439
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2012YA02      Phys.Rev. C 85, 034315 (2012)

T.Yamada, Y.Funaki, T.Myo, H.Horiuchi, K.Ikeda, G.Ropke, P.Schuck, A.Tohsaki

Isoscalar monopole excitations in 16O: α-cluster states at low energy and mean-field-type states at higher energy

NUCLEAR STRUCTURE 16O; calculated energies of 0+ levels, rms charge radii, E0 transition matrix elements, particle decay widths, spectroscopic factors, isoscalar monopole strength functions using four α cluster model and α+12C orthogonality condition model (OCM) model. Discussed dual nature of 16O ground state. Comparison with experimental data.

doi: 10.1103/PhysRevC.85.034315
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2012YA06      Phys.Rev. C 85, 055803 (2012)

K.Yabana, Y.Funaki

Imaginary-time method for the radiative capture reaction rate

NUCLEAR REACTIONS 16O(α, γ)20Ne, E at kT<1000 MeV; calculated radiative capture rate as function of inverse temperature. Spectral representation of Hamiltonian, solution of time-dependent Schrodinger equation in imaginary-time axis. Comparison with calculation using ordinary method.

doi: 10.1103/PhysRevC.85.055803
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2012YA16      Prog.Theor.Phys.(Kyoto), Suppl. 196, 388 (2012)

T.Yamada, Y.Funaki

Three-Body Cluster Structures and Hoyle-Analogue States in 11B

NUCLEAR STRUCTURE 11B, 12,13C, 16O; calculated energy levels, J, π, occupation probabilities, resonances. α+α+t orthogonality condition model, comparison with experimental data.

doi: 10.1143/PTPS.196.388
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2012ZH29      Phys.Rev. C 86, 014301 (2012)

B.Zhou, Z.-z.Ren, C.Xu, Y.Funaki, T.Yamada, A.Tohsaki, H.Horiuchi, P.Schuck, G.Ropke

New concept for the ground-state band in 20Ne within a microscopic cluster model

NUCLEAR STRUCTURE 20Ne; calculated energy surface contour maps of ground-state and first 2+ states, wave function overlaps, minimum energies and distances between α cluster and 16O cluster with respect to different spin-projected states for the ground-state band members up to 8+. Brink microscopic cluster model based on generalized Tohsaki, Horiuchi, Schuck, Ropke (THSR) wave functions. Comparison with experimental data.

doi: 10.1103/PhysRevC.86.014301
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2011FU08      Int.J.Mod.Phys. E20, 874 (2011)

Y.Funaki, T.Yamada, H.Horiuchi, G.Ropke, P.Schuck, A.Tohsaki

Alpha clustering and condensation in nuclei

NUCLEAR STRUCTURE 16O; calculated energy levels, J, π, rms radii, occupation of the single-α orbitals. OCM and THSR calculations, comparison with experimental data.

doi: 10.1142/S0218301311018873
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2011YA08      Int.J.Mod.Phys. E20, 910 (2011)

T.Yamada, Y.Funaki

Cluster structures and single-cluster motions in 11B and 13C

NUCLEAR STRUCTURE 11B, 13C; calculated energy levels, J, π, occupation probabilities.

doi: 10.1142/S0218301311018952
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2010FU06      Phys.Rev. C 82, 024312 (2010)

Y.Funaki, T.Yamada, A.Tohsaki, H.Horiuchi, G.Ropke, P.Schuck

Microscopic study of 4α-particle condensation with inclusion of resonances

NUCLEAR STRUCTURE 16O; calculated binding energies, energy spectra, rms radii, monopole M(E0) matrix elements, α-decay widths, nucleon density distributions, occupation probabilities, and momentum distributions of four 0+ states in 4α-particle condensate using Tohsaki-Horiuchi- Schuck-Ropke (THSR) wave function. Comparison with experimental data.

doi: 10.1103/PhysRevC.82.024312
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2010YA22      Phys.Rev. C 82, 064315 (2010)

T.Yamada, Y.Funaki

α+α+t cluster structures and 12C(02+)-analog states in 11B

NUCLEAR STRUCTURE 11B; analyzed cluster structure of 3/2- and 1/2+ levels, energies, J, π, nuclear radii, reduced width amplitudes, and occupation probabilities of single α particle and single triton particle using orthogonality condition model (OCM) based on the Gaussian expansion method (GEM). 11B treated as α+α+t cluster. 12C; calculated occupation probabilities of single α particle for g.s. and first excited 0+ state. Comparison with experimental data.

doi: 10.1103/PhysRevC.82.064315
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2009FU14      Int.J.Mod.Phys. E18, 2083 (2009)

Y.Funaki, T.Yamada, H.Horiuchi, G.Ropke, P.Schuck, A.Tohsaki

α-particle condensed state in 16O

NUCLEAR STRUCTURE 16O; calculated energy spectra, J, π, rms radii, monopole transition matrix elements, single-α orbits.

doi: 10.1142/S0218301309014330
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2009FU16      Phys.Rev. C 80, 064326 (2009)

Y.Funaki, H.Horiuchi, W.von Oertzen, G.Ropke, P.Schuck, A.Tohsaki, T.Yamada

Concepts of nuclear α-particle condensation

NUCLEAR STRUCTURE 12C, 16O; calculated occupation of single-α orbitals, binding energies, and momentum distribution of Hoyle states in 12C and 16O using antisymmetrized α-particle product state wave functions or THSR (Tohsaki-Horiuchi-Schuck-Roepke) α-cluster wave functions. Discussed α-cluster phenomenon in connection with experimental αγ-coin spectra for 24Mg(28Si, 3α)40Ca and 24Mg(28Si, 12C)40Ca reactions.

doi: 10.1103/PhysRevC.80.064326
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2009YA05      Phys.Rev. C 79, 054314 (2009)

T.Yamada, Y.Funaki, H.Horiuchi, G.Ropke, P.Schuck, A.Tohsaki

Internal one-particle density matrix for Bose-Einstein condensates with finite number of particles in a harmonic potential

doi: 10.1103/PhysRevC.79.054314
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2008FU06      Phys.Rev. C 77, 064312 (2008)

Y.Funaki, H.Horiuchi, G.Ropke, P.Schuck, A.Tohsaki, T.Yamada

Density-induced suppression of the α-particle condensate in nuclear matter and the structure of α-cluster states in nuclei

NUCLEAR STRUCTURE 12C, 16O; calculated condensation fraction for alpha-matter and its dependence on baryon density. Jastrow-Feenberg approach.

doi: 10.1103/PhysRevC.77.064312
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2008FU11      Phys.Rev.Lett. 101, 082502 (2008)

Y.Funaki, T.Yamada, H.Horiuchi, G.Ropke, P.Schuck, A.Tohsaki

α-Particle Condensation in 16O Studied with a Full Four-Body Orthogonality Condition Model Calculation

NUCLEAR STRUCTURE 16O; calculated energy and rms radii of ground and excited 0+ states and monopole transition matrix elements, M(E0) to ground state; comparison with experiments; semi-microscopic cluster model.

doi: 10.1103/PhysRevLett.101.082502
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2008FU14      Int.J.Mod.Phys. E17, 2087 (2008)

Y.Funaki, T.Yamada, H.Horiuchi, G.Ropke, P.Schuck, A.Tohsaki

Present status of alpha-particle condensate states in self-conjugate 4n nuclei

NUCLEAR STRUCTURE 12C, 16O; calculated low density states near the 3α and 4α breakup threshold, energy levels, J, π. OCM and THSR approaches.

doi: 10.1142/S0218301308011148
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2008YA24      Int.J.Mod.Phys. E17, 2101 (2008)

T.Yamada, Y.Funaki

Cluster states and alpha particle condensation in 13C

NUCLEAR STRUCTURE 13C; calculated low-lying energy levels, J, π, isoscalar monopole strengths, rms radii. Comparison with experiment.

doi: 10.1142/S0218301308011161
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2007SC21      Prog.Part.Nucl.Phys. 59, 285 (2007)

P.Schuck, Y.Funaki, H.Horiuchi, G.Ropke, A.Tohsaki, T.Yamada

Quartetting in fermionic matter and α-particle condensation in nuclear systems

doi: 10.1016/j.ppnp.2006.12.003
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2007SC38      Nucl.Phys. A788, 293c (2007)

P.Schuck, Y.Funaki, H.Horiuchi, G.Ropke, A.Tohsaki, T.Yamada

α-Particle Condensation in Nuclear Systems

NUCLEAR STRUCTURE 12C; calculated binding energy, radii, monopole matrix elements and inelastic form factor. 16O; calculated 0+ state energies. Hoyle state discussed.

doi: 10.1016/j.nuclphysa.2007.01.015
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2007WA32      Phys.Lett. B 653, 173 (2007)

T.Wakasa, E.Ihara, K.Fujita, Y.Funaki, K.Hatanaka, H.Horiuchi, M.Itoh, J.Kamiya, G.Ropke, H.Sakaguchi, N.Sakamoto, Y.Sakemi, P.Schuck, Y.Shimizu, M.Takashina, S.Terashima, A.Tohsaki, M.Uchida, H.P.Yoshida, M.Yosoi

New candidate for an alpha cluster condensed state in 16O(α, α') at 400 MeV

NUCLEAR REACTIONS 16O(α, α'), E=400 MeV; analyzed elastic and inelastic σ(θ). Comparison with model calculations. Evidence for cluster structure.

doi: 10.1016/j.physletb.2007.08.016
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2060.


2006FU02      Prog.Theor.Phys.(Kyoto) 115, 115 (2006)

Y.Funaki, H.Horiuchi, A.Tohsaki

New Treatment of Resonances with a Bound State Approximation Using a Pseudo-Potential

NUCLEAR STRUCTURE 12C; calculated wave function, resonance parameters for second 2+ state. Analytic continuation in the coupling constant.

doi: 10.1143/PTP.115.115
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2006FU09      Eur.Phys.J. A 28, 259 (2006)

Y.Funaki, A.Tohsaki, H.Horiuchi, P.Schuck, G.Ropke

Inelastic form factors to alpha-particle condensate states in 12C and 16O: What can we learn?

NUCLEAR STRUCTURE 12C, 16O; calculated inelastic and elastic form factors, α-cluster states energies, related features. Hoyle state discussed, comparison with data.

doi: 10.1140/epja/i2006-10061-5
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2005FU02      Eur.Phys.J. A 24, 321 (2005)

Y.Funaki, A.Tohsaki, H.Horiuchi, P.Schuck, G.Ropke

Resonance states in 12C and α-particle condensation

NUCLEAR STRUCTURE 12C; calculated resonance levels J, π, α-decay widths, α-cluster structure. Analytic continuation in the coupling constant.

doi: 10.1140/epja/i2004-10238-x
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2004SC27      Nucl.Phys. A738, 94 (2004)

P.Schuck, Y.Funaki, H.Horiuchi, G.Ropke, A.Tohsaki, T.Yamada

Alpha-particle condensation in nuclei

NUCLEAR STRUCTURE 12C; calculated α-cluster states energies, radii. Other nuclides discussed.

doi: 10.1016/j.nuclphysa.2004.04.075
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2003FU06      Phys.Rev. C 67, 051306 (2003)

Y.Funaki, A.Tohsaki, H.Horiuchi, P.Schuck, G.Ropke

Analysis of previous microscopic calculations for the second 0+ state in 12C in terms of 3-α particle Bose-condensed state

NUCLEAR STRUCTURE 12C; calculated 0+ state wave function, radius, related features. Comparison of microscopic cluster model and condensed state results.

doi: 10.1103/PhysRevC.67.051306
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2003FU21      Mod.Phys.Lett. A 18, 170 (2003)

Y.Funaki, H.Horiuchi, A.Tohsaki, P.Schuck, G.Ropke

Description of 8Be as deformed gas- Like two-alpha-particle states

NUCLEAR STRUCTURE 8Be; calculated level energies, widths, deformation. Deformed α-cluster condensate.

doi: 10.1142/S0217732303010181
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2002FU19      Prog.Theor.Phys.(Kyoto) 108, 297 (2002)

Y.Funaki, H.Horiuchi, A.Tohsaki, P.Schuck, G.Ropke

Description of 8Be as Deformed Gas-Like Two-Alpha-Particle States

NUCLEAR STRUCTURE 8Be; calculated level energies, widths, deformation. Deformed α-cluster condensate.

doi: 10.1143/PTP.108.297
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