Differences between Monte Carlo models for DIS at small-x and the relation to BFKL dynamics

Rathsman, Johan

doi:10.1016/s0370-2693(96)01637-1

Cited by 3 publications

(2 citation statements)

References 35 publications

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“…[240]), where Ariadne gives a much higher-jet rate than conventional cascades, in better agreement with data. Comparing the Sudakov form factors one can see that the dipole shower in Ariadne resums some large logarithms of 1/x, similarly to what is done in BFKL evolution [241].…”

Section: Hadronic Collisionssupporting

confidence: 57%

General-purpose event generators for LHC physics

et al. 2011

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We review the physics basis, main features and use of general-purpose Monte Carlo event generators for the simulation of proton-proton collisions at the Large Hadron Collider. Topics included are: the generation of hard-scattering matrix elements for processes of interest, at both leading and next-to-leading QCD perturbative order; their matching to approximate treatments of higher orders based on the showering approximation; the parton and dipole shower formulations; parton distribution functions for event generators; non-perturbative aspects such as soft QCD collisions, the underlying event and diffractive processes; the string and cluster models for hadron formation; the treatment of hadron and tau decays; the inclusion of QED radiation and beyond-Standard-Model processes. We describe the principal features of the ARIADNE, Herwig++, PYTHIA 8 and SHERPA generators, together with the Rivet and Professor validation and tuning tools, and discuss the physics philosophy behind the proper use of these generators and tools. This review is aimed at phenomenologists wishing to understand better how parton-level predictions are translated into hadron-level events as well as experimentalists wanting a deeper insight into the tools available for signal and background simulation at the LHC.Comment: 226 pages, 30 figures, submitted to Physics Report

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Section: Hadronic Collisionssupporting

confidence: 57%

General-purpose event generators for LHC physics

et al. 2011

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“…[235]), where Ariadne gives a much higher jet rate than conventional cascades, in better agreement with data. Comparing the Sudakov form factors one can see that the dipole shower in Ariadne resums some large logarithms of 1/x, similarly to what is done in BFKL evolution [236].…”

Section: Hadronic Collisionssupporting

confidence: 57%

General-purpose event generators for LHC physics

Buckley,

Butterworth,

Gieseke

et al. 2011

Preprint

146

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We review the physics basis, main features and use of general-purpose Monte Carlo event generators for the simulation of proton-proton collisions at the Large Hadron Collider. Topics included are: the generation of hardscattering matrix elements for processes of interest, at both leading and nextto-leading QCD perturbative order; their matching to approximate treatments of higher orders based on the showering approximation; the parton and dipole shower formulations; parton distribution functions for event generators; non-perturbative aspects such as soft QCD collisions, the underlying event and diffractive processes; the string and cluster models for hadron formation; the treatment of hadron and tau decays; the inclusion of QED radiation and beyond-Standard-Model processes. We describe the principal features of the Ariadne, Herwig ++ , Pythia 8 and Sherpa generators, together with the Rivet and Professor validation and tuning tools, and discuss the physics philosophy behind the proper use of these generators and tools. This review is aimed at phenomenologists wishing to understand better how parton-level predictions are translated into hadron-level events as well as experimentalists wanting a deeper insight into the tools available for signal and background simulation at the LHC.

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