Comparison of diffraction dissociation of antiprotons with inelastic anti pp interactions and $e^+e^-$ annihilation into hadrons

Batyunya, B.V. ; Boguslavskij, I.V. ; Vrba, V. ;
JINR-1-82-778, 1982.
Inspire Record 1387705 DOI 10.17182/hepdata.1186

The comparison of experimental multiplicity distributions for the processes of inelastic anti pp interaction and antiproton diffraction dissociation at 22.4 GeV/c with leading particles removed from event with e+e- annihilation into hadron is presented. The observed similarity of these processes corresponds to the dual parton model predictions

3 data tables

DATA OBTAINED BY DOUBLIG OF DATA FOR ONE HEMISPHERE. P=4 IS 'LEADING'. P=3 AND P=4 NOT INCLUDED IN MULT COUNT.

DATA OBTAINED BY DOUBLIG OF DATA FOR ONE HEMISPHERE. P=5 IS 'LEADING'. P=3 AND P=5 NOT INCLUDED IN MULT COUNT.

THETA(C=TRUST) IS THE ANGLE BETWEEN BEAM AND AXIS WITH MINIMAL VALUE OF TRUST.


Studies of topological distributions of inclusive the three and four jet events in anti-P P collisions at s**(1/2) = 1800-GeV with the D0 detector

The D0 collaboration Abachi, S. ; Abbott, B. ; Abolins, M. ; et al.
Phys.Rev.D 53 (1996) 6000-6016, 1996.
Inspire Record 399364 DOI 10.17182/hepdata.11124

The global topologies of inclusive three-- and four--jet events produced in $\pp$ interactions are described. The three-- and four--jet events are selected from data recorded by the D\O\ detector at the Tevatron Collider operating at a center--of--mass energy of $\sqrt{s} = 1800$ GeV. The measured, normalized distributions of various topological variables are compared with parton--level predictions of tree--level QCD calculations. The parton--level QCD calculations are found to be in good agreement with the data. The studies also show that the topological distributions of the different subprocesses involving different numbers of quarks are very similar and reproduce the measured distributions well. The parton shower Monte Carlo generators provide a less satisfactory description of the topologies of the three-- and four--jet events.

29 data tables

The estimated systematic uncertainty is 6 PCT.

The estimated systematic uncertainty is 6 PCT.

The estimated systematic uncertainty is 6 PCT.

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