6533b854fe1ef96bd12af2b8

RESEARCH PRODUCT

12C(γ,π+n) and 12C(γ,π+p) reactions across the Δ resonance region

S.j. HallJ. AhrensD.g. JohnstoneM. LiangG.j. MillerK. SpaethA. MondryR. BeckJohn A. MackenzieT. HehlAlan ShotterJ. C. McgeorgeR.o. OwensT. LamparterJ. R. M. AnnandD. BranfordM. SauerThomas DavinsonI. J. D. MacgregorJ. LeypoldtT.t.h. YauJ. D. KellieP. GrabmayrR. SchneiderP.d. Harty

subject

PhysicsNuclear and High Energy PhysicsCrystallographyPionAtomic physicsResonance (chemistry)

description

Abstract Differential cross-sections from (γ,π+n) and (γ,π+p) experiments on 12C are presented together with a microscopic model calculation. The comparison of experimental data with theory confirms that quasifree pion production is the dominant process for the (γ,π+n) reaction. The comparison of (γ,π+p) with (γ,π+n) data shows the importance of final state interactions. first time to experimentally study the strength and the possible mechanisms involved in the final state interaction.

https://doi.org/10.1016/s0370-2693(97)01005-8