θ s -open sets and θ s -continuity of maps in the product space

Semi-θ-Open Sets and New Classes of Maps

semi-θ-open sets and new classes of maps

On Pre-θ-Open Sets and Two Classes of Functions

Some separation axioms via modified θ-open sets

Isospin Analysis of Θ + production forbids γp → Θ + K s and allows γn → Θ + K −

The discrepancy between Θ photoproduction on proton vs. deuteron can be resolved if the photon couples much more strongly to KK than to KK̄ as indicated by the experimentally observed asymmetry between γp → Λ(1520)K and γn → Λ(1520)Ks. Significant signal-background interference effects can occur in experiments like γN → K̄Θ which search for the Θ as a narrow I = 0 resonance in a definite final st...