QCD radiation in the production of high $\hat{s}$ final states - INSPIRE

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QCD radiation in the production of high $\hat{s}$ final states

Peter Z. Skands
(
- Fermilab
)
,
Tilman Plehn
(
- Munich, Max Planck Inst.
)
,
David Rainwater
(
- Rochester U.
)

Nov, 2005

5 pages

Part of Proceedings, 2005 International Linear Collider Physics and Detector Workshop and 2nd ILC Accelerator Workshop (Snowmass 2005)

Contribution to:

- Snowmass 2005

e-Print:

hep-ph/0511306 [hep-ph]

Report number:

ALCPG0417,
FERMILAB-CONF-05-519-T,
SNOWMASS-2005-ALCPG0417

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Abstract:

In the production of very heavy final states - high Mandelstam s-hat - extra QCD radiation can play a significant role. By comparing several different parton shower approximations to results obtained with fixed-order perturbation theory, we quantify the degree to which these approaches agree (or disagree), focussing on initial state radiation above pT = 50 GeV, for top pair production at the Tevatron and at the LHC, and for SUSY pair production at the LHC. Special attention is paid to ambiguities associated with the choice of the maximum value of the ordering variable in parton shower models.

Note:

Invited talk at 2005 International Linear Collider Physics and Detector Workshop and Second ILC Accelerator Workshop, Snowmass, CO (Snowmass05), 5 pages, LaTeX, 3 eps figures Report-no: ALCPG0417, FERMILAB-CONF-05-519-T

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