1994/02/09 by Hiroyuki Yabu, F. Myhrer, K. Kubodera · 15 citations
Physics and Astronomy · #Chiral perturbation theory #Condensation #High-Energy Particle Collisions Research #Lagrangian #Meson #Order (exchange) #Particle physics #Particle physics theoretical and experimental studies #Perturbation theory (quantum mechanics) #Physics #Pion #Quantum Chromodynamics and Particle Interactions #Quantum electrodynamics #Quantum mechanics #Sigma #Theoretical physics #Thermodynamics #nucl-th
paper · pdf · doi:10.1103/physrevd.50.3549
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 50(5), 3549-3552 (American Physical Society) · 10pages, USC(NT)-94-1
arxiv created 1994/02/09 · openalex publication_date 1994/09/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The results for meson condensation in the literature vary markedly depending on whether one uses chiral perturbation theory or the current-algebra-plus-PCAC approach. To elucidate the origin of this discrepancy, we reexamine the role of the \ensuremathΣ term in meson condensation. We find that the resolution of the existing discrepancy requires a knowledge of terms in the Lagrangian that are higher order in density than hitherto considered.