Nuclear states and spectra in holographic QCD

Abstract

A new method to study nuclear physics via holographic QCD is proposed. Multiple baryons in the Sakai-Sugimoto background are described by a matrix model which is a low energy effective theory of D-branes of the baryon vertices. We study the quantum mechanics of the matrix model and calculate the eigenstates of the Hamiltonian. The obtained states are found to coincide with known nuclear and baryonic states, and have appropriate statistics and charges. Calculated spectra of the baryon/nucleus for small baryon numbers show good agreement with experimental data. For hyperons, the Gell-Mann--Okubo formula is approximately derived. Baryon resonances up to spin $5/2$ and isospin $5/2$ and dibaryon spectra are obtained and compared with experimental data. The model partially explains even the magic numbers of light nuclei, $N=2,8$ and $20$.

65 pages; v2: 69 pages, discussions on the magic number are clarified; v3: 75 pages, published version

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• Critical Dimension and Negative Specific Heat in One-dimensional Large-N Reduced Models
• Many Phases of Generalized 3D Instanton Crystals
• Stringy excited baryons in holographic QCD
• Complex Langevin Method on Rotating Matrix Quantum Mechanics at Thermal Equilibrium
• Configurational entropy and the $N^{\ast }(1440)$ Roper resonance in QCD
• Scalar-glueball-mediated scale-anomaly dominance of the confining pressure of the pion in holographic QCD
• Nuclear binding energy in holographic QCD
• Correlation Functions and Chaotic Behavior of the SYK Chain Model in Pure States