6533b821fe1ef96bd127b7c5

RESEARCH PRODUCT

Polarizability of the neutron

M. LudwigD. ChristmannJ. AhrensK.w. RoseB. ZieglerB. SchochB. ZurmühlP. RullhusenMartin SchumacherA. BaumannA. Zieger

subject

Coupling constantPhysicsNuclear and High Energy PhysicsAstrophysics::High Energy Astrophysical PhenomenaNuclear TheoryCompton scatteringlcsh:QC1-999Nuclear physicsPionDeuteriumPolarizabilityNeutronAstrophysics::Earth and Planetary AstrophysicsExponential decayAtomic physicsNuclear ExperimentNucleonlcsh:Physics

description

Abstract A first measurement of quasi-free Compton scattering by the neutron bound in the deuteron has yielded a value for the polarizability of the neutron of αn=(11.7 −11.7+4.3)×10 −4fm 3. This means that a finite value for the polarizability has been obtained, though the result is still consistent with zero. The π0 decay constant Fπ 0γγ and the pion nucleon coupling constant gNNπ have opposite signs.

yearjournalcountryeditionlanguage
1990-01-01Physics Letters B
https://doi.org/10.1016/0370-2693(90)92039-l