High-$p_T$ $\psi\psi$ production as signals for Double Parton scattering
  at hadron colliders

AFS collaboration; Beneke M; Bergström L; Byrum K; CDF collaboration; CDF collaboration; Doncheski M A; Feng Yuan; Humpert B; Humpert B; Kuang-Ta Chao; Paver N; Sanchis-Lozano M A; Sjöstrand T; Sjöstrand T; Sridhar K

research

High- $p_T$ $\psi\psi$ production as signals for Double Parton scattering at hadron colliders

Authors: AFS collaboration
Beneke M
Bergström L
Byrum K
CDF collaboration
CDF collaboration
Doncheski M A
Feng Yuan
Humpert B
Humpert B
Kuang-Ta Chao
Paver N
Sanchis-Lozano M A
Sjöstrand T
Sjöstrand T
Sridhar K
Publication date: 1 January 1997
Publisher: 'IOP Publishing'
Doi

Abstract

We present an analysis of the \psi\psi production from double parton (DP) sacttering and single parton (SP) scattering in the large p_T region via color-octet gluon fragmentation. We find that at the Tevatron the DP \psi\psi production is at the edge of the detectability at present, and at the LHC the DP cross section will dominate over the SP cross section in the lower p_T(min) region (i.e., p_T(min)<7GeV). We also conclude that the color-octet mechanism is of crucial importance to the double j/psi production at high energy hadron colliders.Comment: Revtex, 12 pages, 3 Postscript figure