Magnetic moments of strange hidden-bottom pentaquarks and the role of spin-flavor correlations

We investigate the magnetic moments of strange hidden-bottom pentaquark states within the constituent quark model, considering both molecular and compact configurations. The system with quark content qqqbb̄ (q = u, d, s) is analyzed in three configurations: a baryon-meson molecular form (b̄ q₁)(b q₂ q₃), a diquark-diquark-antiquark structure (b q₁)(q₂ q₃)b̄, and a diquark-triquark configuration (b q₁)(b̄ q₂ q₃). Negative-parity states with JP = 1/2−, 3/2−, and 5/2− are studied for strangeness S=-1,-2,-3. For the dominant spin couplings, the two compact configurations yield identical or numerically very close magnetic moments. This indicates that the magnetic properties are governed primarily by the global spin-flavor structure and heavy-quark suppression effects rather than by the specific clustering of quarks. A systematic suppression with increasing strangeness and a clear spin hierarchy are observed across all configurations. Due to the large bottom-quark mass, heavy-quark contributions are strongly suppressed, and the magnetic moments are dominated by light-strange spin correlations. These results provide useful theoretical benchmarks for future experimental and lattice studies of exotic multiquark states.