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NSR database version of April 27, 2024.

Search: Author = Y.Yamanaka

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2020OH03      Prog.Theor.Exp.Phys. 2020, 041D01 (2020)

S.Ohkubo, J.Takahashi, Y.Yamanaka

Supersolidity of the α cluster structure in the nucleus ¹²C

NUCLEAR STRUCTURE ¹²C; calculated structure parameters; deduced that the crystalline cluster picture and the nonlocalized cluster picture can be reconciled by noticing that they are a manifestation of supersolidity with properties of both crystallinity and superfluidity using a superfluid α cluster model based on effective field theory.

doi: 10.1093/ptep/ptaa043
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2018KA41      Phys.Rev. C 98, 044303 (2018)

R.Katsuragi, Y.Kazama, J.Takahashi, Y.Nakamura, Y.Yamanaka, S.Ohkubo

Bose-Einstein condensation of α-clusters and new soft mode in ¹²C-⁵²Fe 4N nuclei in a field-theoretical superfluid cluster model

NUCLEAR STRUCTURE ¹²C, ¹⁶O, ²⁰Ne, ²⁴Mg, ²⁸Si, ³²S, ³⁶Ar, ⁴⁰Ca, ⁴⁴Ti, ⁴⁸Cr, ⁵²Fe; calculated levels for N=3-13 α clusters, confining potential per α-cluster, and Bogoliubov-de Gennes wave functions at various condensation rates, and B(E2) for ¹²C using field-theoretical superfluid cluster model. Bose-Einstein condensation (BEC) of α clusters in light and medium-heavy 4N nuclei. Comparison with available experimental values.

doi: 10.1103/PhysRevC.98.044303
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2016NA22      Phys.Rev. C 94, 014314 (2016), Erratum Phys.Rev. C 98, 049901 (2018)

Y.Nakamura, J.Takahashi, Y.Yamanaka, S.Ohkubo

Effective field theory of Bose-Einstein condensation of α clusters and Nambu-Goldstone-Higgs states in ¹²C

NUCLEAR STRUCTURE ¹²C; calculated levels, J, π, B(E2) of α-cluster structure above the α-condensate Hoyle state. Discussed emergence of the Nambu-Goldstone-Higgs (NGH) states. Quantum field theory of Bose-Einstein condensation for α clusters. Comparison with available experimental data.

doi: 10.1103/PhysRevC.94.014314
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