The underlying event in hard scattering processes
Conference
·
OSTI ID:791422
The authors study the behavior of the underlying event in hard scattering proton-antiproton collisions at 1.8 TeV and compare with the QCD Monte-Carlo models. The underlying event is everything except the two outgoing hard scattered jets and receives contributions from the beam-beam remnants plus initial and final-state radiation. The data indicate that neither ISAJET or HERWIG produce enough charged particles (with p{sub T} > 0.5 GeV/c) from the beam-beam remnant component and that ISAJET produces too many charged particles from initial-state radiation. PYTHIA which uses multiple parton scattering to enhance the underlying event does the best job describing the data.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC02-76CH03000
- OSTI ID:
- 791422
- Report Number(s):
- FERMILAB-Conf-02/009-E; TRN: US0200640
- Resource Relation:
- Conference: APS/DPF/DPB Summer Study on The Future of Particle Physics (Snowmass 2001), Snowmass, CO (US), 06/30/2001--07/21/2001; Other Information: PBD: 8 Feb 2002
- Country of Publication:
- United States
- Language:
- English
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· Submitted to Phys.Rev.D.
·
OSTI ID:791422
+7 more