Gluon Spin in a Quark Model

Details Gluon Spin in a Quark Model Gluon Spin in a Quark Model

1998-01-13

arxiv.org/abs/hep-ph/9801281v1

Phys.Lett. B431 (1998) 405-409

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, no figures, 1 table

Scientific paper

10.1016/S0370-2693(98)00550-4

We compute the gluon polarization $\Delta G$ and the gluon total angular momentum $J_g$ in the Isgur-Karl quark model. Taking into account self-interaction contributions, we obtain for both quantities a positive value of about 0.24 at the model scale $\mu_0^2 \simeq 0.25$ GeV$^2$. This estimate is reasonably close to the expectation from polarized deep inelastic scattering analyses.

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