# A Collection of Matching Benchmarks

### From Wiki Les Houches 09

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*** Jet eta distributions | *** Jet eta distributions | ||

*** Jet Masses | *** Jet Masses | ||

+ | *** Volcano plot | ||

** 2-jet distributions | ** 2-jet distributions | ||

*** Delta(eta), Delta(R) | *** Delta(eta), Delta(R) |

## Revision as of 08:49, 13 June 2009

## Contents |

# Radiation in gg->H: comparison

## Plots

- Higss Masses: 120, 200, 400
- Single Inclusive: H pT, H eta
- Jets (fast-jet: anti-kT? kT? ... ?)
- Single-Jet distributions
- Jet rates
- Jet pT distributions
- Jet eta distributions
- Jet Masses
- Volcano plot

- 2-jet distributions
- Delta(eta), Delta(R)
- Jet Rate Ratios

- Pathological Phase Space Points
- Higgs + >= 2 jets at low Higgs pT
- Hierarchies: One high scale + >= 2 objects at lower scale, for a small and a large scale separation

- Single-Jet distributions

## Tools

- MC@NLO (Gunther)
- POWHEG (Keith, Carlo)
- PYTHIA (Steve)
- MLM Matched (Fabio + Roberto Chierici)
- CKKW (Stefan H. + Jan W.)
- MCFM (H+X, H+1 jet; H+2 jets + X) (John)
- HNNLO (Gunther)
- HE + Matched (Jeppe, Peter)

# Radiation in WBF: comparison

As above, modulo

- WBF
- Cuts: 2 Jets with pT > 0.4 in opposite hemisphere and Delta(y) > Delta(y)_min = 4.0
- Observables:
- Jet rates vs Delta(y) (for which jet pT?)
- Ratios of jet rates
- pT of jets
- Delta(eta) jof ets
- Decorrelation
- Zeppenfeld Plot

# Radiation in gg->H: mt finite vs mt->infty

- Higgs + 1 Jet (MCFM) LO + finite mt
- Higgs + 2 jets (VBF@NLO) LO + finite mt
- Parton-Level plots
- pT Higgs, eta
- pT of the leading jet
- Decorrelation

- (Jeppe)

# Radiation in W+jets

- W + >= 2 jets
- <cos(phi)> vs Delta(y) for various kinds of approaches
- (Steve)