Central pseudorapidity gaps in events with a leading antiproton at the Fermilab tevatron (p)over-barp collider

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doi:10.1103/physrevlett.91.011802

Central pseudorapidity gaps in events with a leading antiproton at the Fermilab tevatron (p)over-barp collider

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Acosta D., Affolder T., Akimoto H., Albrow M., Ambrose D., Amidei D., ...More

PHYSICAL REVIEW LETTERS, vol.91, no.1, 2003 (SCI-Expanded)

Publication Type: Article / Article
Volume: 91 Issue: 1
Publication Date: 2003
Doi Number: 10.1103/physrevlett.91.011802
Journal Name: PHYSICAL REVIEW LETTERS
Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Istanbul University Affiliated: Yes

Abstract

We report a measurement of the fraction of events with a large pseudorapidity gap Deltaeta within the pseudorapidity region available to the proton dissociation products X in (p) over bar +p-->(p) over bar +X. For a final state (p) over bar of fractional momentum loss xi((p) over bar) and 4-momentum transfer squared t((p) over bar) within 0.063 is found to be 0.246+/-0.001 (stat)+/-0.042 (syst) [0.184+/-0.001 (stat)+/-0.043 (syst)]. Our results are compared with gap fractions measured in minimum bias (p) over barp collisions and with theoretical expectations.