We compute the gluon polarization ΔG and the gluon total angular momentum Jg 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 μ0^2≃0.25 GeV^2. This estimate is reasonably close to the expectation from polarized deep inelastic scattering analyses.
Gluon spin in a quark model
DRAGO, Alessandro
1998
Abstract
We compute the gluon polarization ΔG and the gluon total angular momentum Jg 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 μ0^2≃0.25 GeV^2. This estimate is reasonably close to the expectation from polarized deep inelastic scattering analyses.File in questo prodotto:
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