6533b859fe1ef96bd12b8233

RESEARCH PRODUCT

Unsubtracted dispersion-relation for longitudinal compton amplitude

Jose BernabeuRolf Tarrach

subject

PhysicsNuclear and High Energy PhysicsAngular momentumFísicaSchrödinger equationsymbols.namesakeAmplitudePolarizabilityQuantum mechanicsDispersion relationQuantum electrodynamicssymbolsSum rule in quantum mechanicsNucleonWave functionParticle Physics - Theory

description

Abstract It is shown that there is a simple connection between the slope, at q2 = 0, of the longitudinal Compton amplitude and the electric polarizability of the nucleon. The longitudinal subtraction function is thus known to order q2. The assumption of an unsubtracted dispersion relation for the longitudinal amplitude leads to a sum rule for the electric polarizability. This is a model independent test of the high-energy behaviour of the forward virtual Compton amplitude.

yearjournalcountryeditionlanguage
1975-01-01
10.1016/0370-2693(75)90438-4http://hdl.handle.net/10550/53328