Experimental information on the pion gluon distribution function

A. Bordner,C. E. Kuehn,M. Arenton,H. Chen, M. Corcoran, L. Cormell,R. Ditzler,M. Dris,A. R. Erwin,T. Fields,J. Fleischman,M. Harrison, M. A. Hasan,K. Johns,A. Kanofsky,W. Kononenko,H. Miettinen,C. Naudet,K. S. Nelson, J. Rice,J. Roberts,B. Robinson,W. Selove,G. Theodosiou, M. Thompson,B. Yost

European Physical Journal C（1996）

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摘要

An experiment performed at Fermilab used double-arm calorimeter triggers to study di-jet production by 400 GeV protons and 200 GeVπ − mesons incident on liquid hydrogen. The observed ratio of positive to negative leading particles in the jets was compared forpp andπp production using a tree level parton scattering model. The results are moderately sensitive to the form of the pion gluon distribution function and yieldx g(x)⋍(1−x)2.75±0.40±0.75.

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distribution function

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