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

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

doi:10.1103/PhysRevC.94.014314

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

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

School of Fundamental Science and Engineering

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

An effective field theory of α-cluster condensation is formulated as a spontaneously broken symmetry in quantum field theory to understand the raison d'être and the nature of the Hoyle and α-cluster states in C12. The Nambu-Goldstone and Higgs mode operators in infinite systems are replaced with a pair of canonical operators whose Hamiltonian gives rise to discrete energy states in addition to the Bogoliubov-de Gennes excited states. The calculations reproduce well the experimental spectrum of the α-cluster states. The existence of the Nambu-Goldstone-Higgs states is demonstrated and crucial. The γ-decay transitions are also obtained.

Original language	English
Article number	014314
Journal	Physical Review C
Volume	94
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevC.94.014314
Publication status	Published - 2016 Jul 19

ASJC Scopus subject areas

Nuclear and High Energy Physics

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