Measurement of Diffractive Dijet Production at the Fermilab Tevatron
- Argonne National Laboratory, Argonne, Illinois 60439 (United States)
- Instituto Nazionale di Fisica Nucleare, University of Bologna, I-40127 Bologna (Italy)
- Brandeis University, Waltham, Massachusetts 02264 (United States)
- University of California at Los Angeles, Los Angeles, California 90024 (United States)
- University of Chicago, Chicago, Illinois 60638 (United States)
- Duke University, Durham, North Carolina 28708 (United States)
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510 (United States)
- University of Florida, Gainesville, Florida 33611 (United States)
- Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati (Italy)
- University of Geneva, CH-1211 Geneva 4 (Switzerland)
We report the observation and measurement of the rate of diffractive dijet production at the Fermilab Tevatron {ovr p}p collider at {radical}(s)=1.8 TeV . In events with two jets of E{sub T}{gt}20 GeV , 1.8{lt}{vert_bar}{eta}{vert_bar}{lt}3.5 , and {eta}{sub 1}{eta}{sub 2}{gt}0 , we find that the diffractive to nondiffractive production ratio is R{sub JJ}=[0.75{plus_minus}0.05(stat) {plus_minus}0.09(syst)]{percent} . By comparing this result, in combination with our measured rate for diffractive W boson production reported previously, with predictions based on a hard partonic pomeron structure, we determine the pomeron gluon fraction to be f{sub g}=0.7{plus_minus}0.2 . {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 656276
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 14 Vol. 79; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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