Corpus ID: 54521266

LONGITUDINAL GLUON POLARIZATION IN RHIC DOUBLE-SPIN ASYMMETRIES.

@article{Jager2004LONGITUDINALGP,
  title={LONGITUDINAL GLUON POLARIZATION IN RHIC DOUBLE-SPIN ASYMMETRIES.},
  author={Barbara Jager and Stefan Kretzer and Marco Stratmann and Werner Vogelsang},
  journal={arXiv: High Energy Physics - Phenomenology},
  year={2004}
}
The longitudinally polarized gluon density is probed sensitively in hard collisions of polarized protons under the condition that the dominant dynamics are perturbative and of leading twist origin. First data have recently been presented by PHENIX on the double-spin asymmetry A{sub LL}{sup {pi}} for {pi}{sup 0} production at moderate transverse momentum p {perpendicular} {approx_equal} 1 {divided_by} 4 GeV and central rapidity. By means of a systematic investigation of the relevant degrees of… Expand

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