6533b828fe1ef96bd12878ae

RESEARCH PRODUCT

Deeply bound pionic atoms with resonant Compton scattering

Juan NievesEulogi OsetRafael C. Carrasco

subject

Nuclear scatteringPhysicsNuclear and High Energy PhysicsNuclear TheoryResolution (electron density)Compton scatteringPhoton energyInterference (wave propagation)Cross section (physics)medicine.anatomical_structureAmplitudemedicineAtomic physicsNuclear ExperimentNucleus

description

Abstract We study the contribution to ordinary Compton nuclear scattering of the resonant channel γ + A → (A′ π − ) → γ + A with the π − bound in the nucleus. We show that the interference of this resonant channel with background amplitudes produces significant peaks in the elastic backward differential cross section as a function of the incoming photon energy for light and medium-size nuclei. We also find that for light nuclei the signals in forward Compton scattering or in the total photonuclear cross section are big enough to be observed, provided there is a good resolution in the photon beam. The reaction is particularly suited to find deeply bound pionic states in medium-size nuclei, or ordinary levels in unstable light nuclei.

https://doi.org/10.1016/0375-9474(93)90004-h