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The two leading twist, quark helicity conserving generalized partondistributions (GPDs) of 3He, accessible, for example, in coherent deeplyvirtual Compton scattering (DVCS), are calculated in impulse approximation(IA). Their sum, at low momentum transfer, is found to be largely dominated bythe neutron contribution, so that 3He is very promising for the extraction ofthe neutron information. Anyway, such an extraction could be not trivial. Atechnique, able to take into account the nuclear effects included in the IAanalysis in the extraction procedure, even at moderate values of the momentumtransfer, is proposed. Coherent DVCS arises therefore as a crucial experimentto access, for the first time, the neutron GPDs and the orbital angularmomentum of the partons in the neutron.

Generalized parton distributions of 3He and the neutron orbital structure