| G. Ingelman, Old and New Ideas on Hard Diffraction, Proceedings of the LISHEP Workshop, Rio de Janeiro 1998. |
....which typically have jtj 0 GeV . The fraction of dijet events with a central rapidity gap is typically on the order of 1 [11] We observe an increase in the gap fraction with transverse energy and pseudorapidity. Comparisons to Monte Carlo show that the data favor a soft color model [19, 20], where the hard interaction is a standard QCD exchange and the rapidity gap is generated by a cancelation of the color by soft radiation. Two Figure 3. The multiplicity at s = 1800 GeV after requiring a rapidity gap on the opposite side. The bottom figure is the corresponding jet ET ....
G. Ingelman, Old and New Ideas on Hard Diffraction, Proceedings of the LISHEP Workshop, Rio de Janeiro 1998.
....which typically have jtj 0 GeV 2 . The fraction of dijet events with a central rapidity gap is typically on the order of 1 [12] We observe an increase in the gap fraction with transverse energy and pseudorapidity. Comparisons to Monte Carlo show that the data favor a soft color model [21,22], where the hard interaction is a standard QCD exchange and the rapidity gap is generated by a cancelation of the color by soft radiation. Two gluon models for the pomeron do not describe the data well. 5. CONCLUSION We have presented a preliminary measurement of HSD with the D detector at ....
G. Ingelman, Old and New Ideas on Hard Diffraction, Proceedings of the LISHEP Workshop, Rio de Janeiro 1998.
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