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

V. Barone·T. Calarco·A. Drago·M. C. Simani
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Abstract

The flavor asymmetry of the polarized light sea, $Δ\bar u - Δ\bar d$, 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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V. Barone, T. Calarco, A. Drago, M. C. Simani. 2003-06-23. Flavor Asymmetry of the Polarized Light Sea: Models vs. Data. https://doi.org/10.1016/j.physletb.2003.07.068%2010.1016%2Fj.physletb.2003.11.001

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