A method using two-body conditional probabilities characterizes quadrupole deformations in J-conserving nuclear states from symmetry-restored DFT calculations, yielding results distinct from broken-symmetry one-body moments.
Quark and gluon tomography of the helium-4 nucleus
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abstract
QCD collinear factorization allows coherent hard exclusive reactions to reveal the quark-gluon structure of light nuclei, enabling their 3D tomography. We study elastic form factors and deeply virtual Compton scattering on a helium-4 target, achieving theoretical precision unprecedented even in proton studies. Constraining generalized parton distributions at next-to-leading order in $\alpha_s$, incorporating kinematic twist corrections, and using full evolution equations, we provide the first tomography of a light nucleus, revealing distinct transverse spatial distributions of quarks and gluons.
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Multipole tomography of atomic nuclei with symmetry-conserved theories
A method using two-body conditional probabilities characterizes quadrupole deformations in J-conserving nuclear states from symmetry-restored DFT calculations, yielding results distinct from broken-symmetry one-body moments.