Evidence for high excitation energy resonances in the 7 alpha disassembly of ${}^{28}$Si

Abstract

The excitation function for the 7 alpha de-excitation of ${}^{28}$Si nuclei excited to high excitation energies in the collisions of 35 MeV/nucleon ${}^{28}$Si with ${}^{12}$C reveals resonance structures that may indicate the population of high spin toroidal isomers such as those predicted by a number of recent theoretical calculations. This interpretation is supported by extended theoretical analyses.

arXiv comment11 pages, 5 figures

References in corpus (21)

• Relativistic Continuum Hartree Bogoliubov Theory for Ground State Properties of Exotic Nuclei
• New parametrization for the nuclear covariant energy density functional with point-coupling interaction
• Hidden pseudospin and spin symmetries and their origins in atomic nuclei
• A systematic description of evaporation spectra for light and heavy compound nuclei
• Structure of Light Unstable Nuclei Studied with Antisymmetrized Molecular Dynamics
• Progress on tilted axis cranking covariant density functional theory for nuclear magnetic and antimagnetic rotation
• Alpha-particle condensation in 16O via a full four-body OCM calculation
• Antisymmetrized molecular dynamics with quantum branching processes for collisions of heavy nuclei
• Unified description of fission in fusion and spallation reactions
• Reaction Dynamics and Multifragmentation in Fermi Energy Heavy Ion Reactions
• Solving Dirac equations on a 3D lattice with inverse Hamiltonian and spectral methods
• A region of high-spin toroidal isomers
• High-spin torus isomers and their precession motions
• Cluster formation in pre-compound nuclei in the time-dependent framework
• Existence of exotic torus configuration in high-spin excited states of ${}^{40}$Ca
• Experimental reconstruction of primary hot isotopes and characteristic properties of the fragmenting source in the heavy ion reactions near the Fermi energy
• Alpha Conjugate Neck Structures in the Collisions of 35 MeV/nucleon 40Ca with 40Ca
• Pure Collective Precession Motion of High-Spin Torus Isomer
• Toroidal high-spin isomers in light nuclei with N not equal to Z
• Freeze-out configuration properties in the 197Au + 197Au reaction at 23 AMeV
• Particle-hole nature of the light high-spin toroidal isomers

Cited by in corpus (15)

• Dynamics of the linear-chain alpha cluster in microscopic time-dependent relativistic density functional theory
• Toroidal states in ${}^{28}$Si with covariant density functional theory in 3D lattice space
• Two-proton momentum correlation from photondisintegration of $\alpha$-clustering light nuclei in the quasi-deuteron region
• Electromagnetic field from asymmetric to symmetric heavy ion collision at 200 GeV/c
• Hyperheavy spherical and toroidal nuclei: the role of shell structure
• Spin Quantization in Heavy Ion Collision
• Cold dilute nuclear matter with $\alpha$-particle condensation in a generalized nonlinear relativistic mean-field model
• Ground state and fission properties of even-$A$ uranium isotopes from multidimensionally-constrained relativistic mean field model
• $\alpha$-cluster decay from ${}^{24}$Mg resonances produced in ${}^{12}$C(${}^{16}$O,${}^{24}$Mg)$\alpha$ reaction
• Nucleon Short-Range Correlations and High-Momentum Dynamics: Implications on the Equation of State of Dense Matter
• States of the ${}^{12}$C Nucleus in the Toroidal Configuration
• Temperature of the hot $\alpha$-source: a guidance to probe the Bose-Einstein condensation of $\alpha$ clusters in the heavy-ion collision
• Neutron Star Equation of State with Nucleon Short-Range Correlations: A Concise Review and Open Issues
• Two-body cluster entangled structure in the ${\mathcal{H}}_1\otimes {\mathcal{H}}_2$ Hilbert space
• Toroidal States of the ${}^{12}$C Nucleus