TY - JOUR TI - PSI-PRODUCTION IN (P)OVER-BARN AND PI-N-- INTERACTIONS AT 125 GEV/C AND A DETERMINATION OF THE GLUON STRUCTURE FUNCTIONS OF THE (P)OVER-BAR AND THE PI(-) AU - AKERLOF, C AU - ARETI, H AU - BINKLEY, M AU - CONETTI, S AU - COX, B and AU - ENAGONIO, J AU - MAO, H AU - HOJVAT, C AU - JUDD, D AU - KATSANEVAS, S and AU - KEPHART, RD AU - KOURKOUMELIS, C AU - KRAUSHAAR, P AU - LEBRUN, P and AU - MALHOTRA, PK AU - MARKOU, A AU - MAZUR, PO AU - NITZ, D AU - RESVANIS, LK AU - and RYAN, D AU - RYAN, T AU - SCHAPPERT, W AU - STAIRS, DG AU - THUN, R and AU - TURKOT, F AU - TZAMARIAS, S AU - VOULGARIS, G AU - WAGNER, RL AU - WAGONER, AU - DE AU - YANG, W AU - ZHANG, NJ JO - Physical Review D PY - 1993 VL - 48 TODO - 11 SP - 5067-5080 PB - AMER PHYSICAL SOC SN - 2470-0010, 2470-0029 TODO - 10.1103/PhysRevD.48.5067 TODO - null TODO - We have measured the cross section for production of psi and psi in (p) over bar and pi(-) interactions with Be, Cu, and W targets in experiment E537 at Fermilab. The measurements were performed at 125 GeV/c using a forward dimuon spectrometer in a closed geometry configuration. The gluon structure functions of the (p) over bar and pi(-) have been extracted from the measured d sigma/dx(F) spectra of the produced psi’s. From the (p) over bar W data we obtain, for (p) over bar, xG(x)=(2.15+/-0.7)[1-x]((6.83+/-0.5))[1+(5.85+/-0.95)x]. In the pi(-) case, we obtain, from the W and the Be data separately, xG(x)=(1.49+/-0.03)[1-x]((1.98+/-0.06)) (for pi(-)W), xG(x)=(1.10+/-0.10)[1-x]((1.20+/-0.20)) (for pi(-)Be). ER -