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-BARAND THE PI(-)/

Authors
AKERLOF C ARETI H BINKLEY M CONETTI S COX B ENAGONIO J MAO H HOJVAT C JUDD D KATSANEVAS S KEPHART RD KOURKOUMELIS C KRAUSHAAR P LEBRUN P MALHOTRA PK MARKOU A MAZUR PO NITZ D RESVANIS LK RYAN D RYAN T SCHAPPERT W STAIRS DG THUN R TURKOT F TZAMARIAS S VOULGARIS G WAGNER RL WAGONER DE YANG W ZHANG NJ
Citation
C. Akerlof et al., 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-BARAND THE PI(-)/, Physical review. D. Particles and fields, 48(11), 1993, pp. 5067-5080
Citations number
32
Categorie Soggetti
Physics, Particles & Fields
Journal title
Physical review. D. Particles and fields → ACNP
ISSN journal
05562821
Volume
48
Issue
11
Year of publication
1993
Pages
5067 - 5080
Database
ISI
SICI code
0556-2821(1993)48:11<5067:PI(API>2.0.ZU;2-3
Abstract
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 experi ment E537 at Fermilab. The measurements were performed at 125 GeV/c us ing 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, (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]((1.9 8+/-0.06)) (for pi(-)W), xG(x)=(1.10+/-0.10)[1-x]((1.20+/-0.20)) (for pi(-)Be).