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Flavor Asymmetry of the Polarized Light Sea: Models vs. Data | | V. Barone
; T. Calarco
; A. Drago
; M.C. Simani
; | | Date: |
24 Jun 2003 | | Journal: | Phys.Lett. B571 (2003) 50-54; Phys.Lett. B572 (2003) 32-36 | | Subject: | hep-ph | | Affiliation: | U. Piemonte Orientale & INFN, Alessandria), T. Calarco (ECT, Trento), A. Drago (Ferrara U. and INFN, Ferrara), M.C. Simani (LLNL, Livermore, CA | | Abstract: | The flavor asymmetry of the polarized light sea, $Delta ar u - Delta ar d$, 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. | | Source: | arXiv, hep-ph/0306225 | | Services: | Forum | Review | PDF | Favorites | |
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