$\alpha$-particle condensate states in ${}^{16}$O

Abstract

The existence of a rotational band with the $\alpha$+${}^{12}$C($0_2^{+}$) cluster structure, in which three $\alpha$ particles in ${}^{12}$C($0_2^{+}$) are locally condensed, is demonstrated near the four-$\alpha$ threshold of ${}^{16}$O in agreement with experiment. This is achieved by studying structure and scattering for the $\alpha$+${}^{12}$C($0_2^{+}$) system in a unified way. A drastic reduction (quenching) of the moment of the inertia of the $0^{+}$ state at 15.1 MeV just above the four-$\alpha$ threshold in ${}^{16}$O suggests that it could be a candidate for the superfluid state in $\alpha$-particle condensation.

5 pages, 3 figures

References in corpus (4)

• Nuclear rainbow scattering and nucleus-nucleus potential
• Alpha-particle condensation in 16O via a full four-body OCM calculation
• Evidence for an alpha cluster condensed state in 16O(alpha,alpha') at 400 MeV
• Evidence for strong refraction of ${}^3$He in an alpha-particle condensate

Cited by in corpus (24)

• Linear chain structure of four-$\alpha$ clusters in ${}^{16}$O
• The many facets of the (non relativistic) Nuclear Equation of State
• Hoyle band and $\alpha$ condensation in ${}^{12}\mathrm{C}$
• Nonlocalized cluster dynamics and nuclear molecular structure
• Microscopic study of 4-alpha-particle condensation with proper treatment of resonances
• Experimental investigation of a linear-chain structure in the nucleus 14C
• Alpha cluster structures and monopole excitations in ${}^{13}$C
• Cluster structures in ${}^{11}$B
• Nonlocalized Clustering and Evolution of Cluster Structure in Nuclei
• Searching for 4$\alpha$ linear-chain structure in excited states of ${}^{16}$O with a covariant density functional theory
• Cluster states and monopole transitions in ${}^{16}$O
• Nuclear Alpha-Particle Condensates
• Characterization of the proposed 4-α cluster state candidate in 16O
• Unification of Airy structure in inelastic $\alpha$ +${}^{16}$O scattering and $\alpha$-cluster structure with core excitation in ${}^{20}$Ne
• Open Problems in $\alpha$ Particle Condensation
• Refractive effects and Airy structure in inelastic ${}^{16}$O+${}^{12}$C rainbow scattering
• Bose-Einstein condensation of alpha clusters and new soft mode in 12C--52Fe 4N nuclei in field theoretical superfluid cluster model
• Further evidence for a dynamically generated secondary bow in ${}^{13}$C+${}^{12}$C rainbow scattering
• 2alpha+t cluster feature of $3/2_3^{-}$ state in ${}^{11}$B
• Existence of inelastic supernumerary nuclear rainbow in ${}^{16}$O+${}^{12}$C scattering
• Secondary bow with ripples in ${}^{12}$C+${}^{12}$C rainbow scattering
• Bose-Einstein condensation of five $\alpha$ clusters in ${}^{20}$Ne and supersolidity
• Six-$\alpha$ cluster Bose-Einstein condensation and supersolid ${}^{12}$C($0_2^{+})$+${}^{12}$C($0_2^{+})$ molecular structure in ${}^{24}$Mg
• Clustering in hadrons and light nuclei from Lorentz boosted form factors