NUCLEAR REACTIONS REACCIONES NUCLEARES ANTIPARTICLES Absorption in the presence of faraday rotation BROMINE BROMO Band structure in 78 Rb CAMPOS DE GRAVITACION DISPERSION DISPERSION DE RAYLEIGH ESPECTROSCOPIA ESPIN ESTADOS EXCITADOS EXCITATION FUNCTIONS EXCITED STATES FUNCIONES DE EXCITACIÓN GRAVITATIONAL FIELDS GROUND STETE HARMONIC OSCILLATORS High spin states in 74Br ISOMEROS ISOMERS In-beam study of 70As Lifetimes and g-factors of the 6− and 7− isomers in 66Ga and 68Ga Long-lived positive parity isomer in 76Br MASS ENERGY Nuclear reactions OSCILADORES ARMONICOS On the gravitational mass of antiparticles, the gravitational energy shift of spectral lines, and the principle of equivalence PARIDAD