Central Pseudorapidity Gaps in Events with a Leading Antiproton at the Fermilab Tevatron [Formula presented] Collider
Journal
Physical Review Letters
Journal Volume
91
Journal Issue
1
Date Issued
2003
Author(s)
Acosta, D. et al. (The CDF Collaboration)
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+p-->p+X. For a final state p of fractional momentum loss xi(p) and 4-momentum transfer squared t(p) 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 pp collisions and with theoretical expectations.
Type
journal article