Semi-inclusive large-$p_T$ light hadron pair production as a probe of polarized gluons

Details Semi-inclusive large-$p_T$ light hadron pair production as a probe of polarized gluons Semi-inclusive large-$p_T$ light hadron pair production as a probe of polarized gluons

2002-01-19

arxiv.org/abs/hep-ph/0201181v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages including 2 eps-figures. Talk given by T. Morii at the EMI2001 (Int. Symp. on Electromagnetic Interactions in Nuclear

Scientific paper

We propose a new formula for extracting the polarized gluon distribution $\Delta g$ in the proton from the large--$p_T$ light hadron pair production in deep inelastic semi-inclusive reactions. Though the process dominantly occurs via photon--gluon fusion(PGF) and QCD Compton, we can remove an effect of QCD Compton from the combined cross section of light hadron pair production by using symmetry relation among fragmentation functions and thus, rather clearly extract information of $\Delta g$.

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