6533b7d2fe1ef96bd125e973

RESEARCH PRODUCT

Testing electromagnetic proton form factors in the annihilation process p+p¯→π0+e−+e+

C. AdamuščínF.e. MaasJ. GuttmannM. Zambrana

subject

PhysicsScattering cross-sectionNuclear and High Energy PhysicsParticle physicsAnnihilationProtonNuclear TheoryDirac (software)Atomic and Molecular Physics and OpticsNuclear physicssymbols.namesakePauli exclusion principlePionAntiprotonsymbolsPhysics::Accelerator PhysicsNuclear Experiment

description

We study the annihilation channel in proton antiproton collisions with production of a single neutral pion and an electron-positron pair. It is shown that this reaction allows access to the proton electromagnetic form factors in the ‘unphysical’ region and to the difference between complex phases of the Dirac and Pauli proton form factors. The differential cross section is given in the laboratory frame in an experimental setup where all outgoing particles are fully detected.

https://doi.org/10.1016/j.nuclphysbps.2011.10.088