6533b7d2fe1ef96bd125e159
RESEARCH PRODUCT
Pion parton distributions in a nonlocal Lagrangian
S. NogueraV. Ventosubject
QuarkPhysicsNuclear and High Energy PhysicsParticle physicsHigh Energy Physics::LatticeNuclear TheoryHigh Energy Physics::PhenomenologyFOS: Physical sciencesPropagatorPartonRenormalization groupNon localPartícules (Física nuclear)High Energy Physics - PhenomenologyFormalism (philosophy of mathematics)symbols.namesakeHigh Energy Physics - Phenomenology (hep-ph)PionsymbolsFísica nuclearHigh Energy Physics::ExperimentNuclear ExperimentLagrangiandescription
We use phenomenological nonlocal Lagrangians, which lead to non trivial forms for the quark propagator, to describe the pion. We define a procedure, based on the Dyson-Schwinger equations, for the calculation of the pion parton distributions at low Q^2. The obtained parton distributions fulfill all the wishful properties. Using a convolution approach we incorporate the composite character of the constituent quarks in the formalism. We evolve, using the Renormalization Group, the calculated parton distributions to the experimental scale and compare favorably with the data and draw conclusions.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2005-05-12 | The European Physical Journal A |