Flavor Asymmetry of the Polarized Light Sea: Models vs. Data

Details Flavor Asymmetry of the Polarized Light Sea: Models vs. Data Flavor Asymmetry of the Polarized Light Sea: Models vs. Data

2003-06-23

arxiv.org/abs/hep-ph/0306225v1

Phys.Lett. B571 (2003) 50-54; Phys.Lett. B572 (2003) 32-36

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 3 figures

Scientific paper

10.1016/j.physletb.2003.07.082

The flavor asymmetry of the polarized light sea, $\Delta \bar u - \Delta \bar
d$, discriminates between different model calculations of helicity densities.
We show that the chiral chromodielectric model, differently from models based
on a $1/N_c$ expansion, predicts a small value for this asymmetry, what seems
in agreement with preliminary HERMES data.

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