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RESEARCH PRODUCT

The asymmetry in π−3He scattering

L. TiatorS.s. KamalovByron K. JenningsC. Bennhold

subject

PhysicsNuclear and High Energy PhysicsAmplitudePionScatteringQuantum electrodynamicsmedia_common.quotation_subjectNuclear TheoryNuclear ExperimentWave functionAsymmetrySign (mathematics)media_common

description

Abstract We show that the π + − 3 He asymmetry data obtained in a recent TRIUMF experiment at T π = 100 MeV can be understood in terms of the elementary π N amplitudes. Through a comparison to a full optical-potential calculation that employs realistic Faddeev wave functions for the trinucleon we show that all nuclear-structure dependence cancels for A y at lower energies. At higher pion energies around the Δ-resonance region the sign flip of A y offers the possibility of extracting information about the smaller partial waves.

https://doi.org/10.1016/0375-9474(92)90176-k