Browsing by Author "Gieseke, Stefan"
Now showing items 111 of 11

Event generators: New developments.
Gieseke, Stefan (HEP, Cavendish Laboratory, University of Cambridge, 200210) 
Herwig++ 1.0: An Event generator for e+ e annihilation.
Gieseke, Stefan; Ribon, Alberto; Seymour, Michael H.; Stephens, Phil; Webber, Bryan R. (HEP, Cavendish Laboratory, University of Cambridge, 200311)Results from the new Monte Carlo event generator Herwig++ are presented. This first version simulates Hadron Emission Reactions With Interfering Gluons in electron–positron annihilation. The parton shower evolution is ... 
Herwig++ 2.0 beta release note.
Gieseke, Stefan; Grellscheid, D.; Ribon, Alberto; Richardson, P.; Seymour, Michael H.; Stephens, Phil; Webber, Bryan R. (High Energy Physics, Cavendish Laboratory, University of Cambridge, 200602)A new release of the Monte Carlo program Herwig++ (version 2.0 ) is now available. The main new feature is the extension of the program to include simple hadronhadron processes including the initialstate parton shower. 
Herwig++ 2.0 Release Note.
Gieseke, Stefan; Grellscheid, D.; Hamilton, K.; Ribon, Alberto; Richardson, P.; Seymour, Michael H.; Stephens, PhilWebber, Bryan R. et al. (High Energy Physics, Cavendish Laboratory, University of Cambridge, 200609)A new release of the Monte Carlo program Herwig++ (version 2.0) is now available. This is the first version of the program which can be used for hadronhadron physics and includes the full simulation of both initial and ... 
Herwig++ 2.1 Release Note.
Bahr, M.; Gieseke, Stefan; Grellscheid, D.; Giggs, M.; Hamilton, K.; LatundeDada, Oluseyi; Platzer, S.Richardson, P.Seymour, Michael H.Sherstnev, A.Webber, Bryan R. et al. (High Energy Physics, Cavendish Laboratory, University of Cambridge, 200711)A new release of the Monte Carlo program Herwig++ (version 2.1) is now available. This version includes a number of significant improvements including: an eikonal multiple partonparton scattering model of the underlying ... 
Herwig++ 2.2 Release Note.
Bahr, M.; Gieseke, Stefan; Giggs, M.; Grellscheid, D.; Hamilton, K.; LatundeDada, Oluseyi; Platzer, S.Richardson, P.Seymour, Michael H. et al. (High Energy Physics, Cavendish Laboratory, University of Cambridge, 200804)A new release of the Monte Carlo program Herwig++ (version 2.2) is now available. This version includes a number of improvements including: matrix elements for the production of an electroweak gauge boson, W± and Z0, in ... 
Herwig++ Physics and Manual.
Bahr, M.; Gieseke, Stefan; Giggs, M.; Grellscheid, D.; Hamilton, K.; LatundeDada, Oluseyi; Platzer, S.Richardson, P.Seymour, Michael H.Sherstnev, A.Webber, Bryan R. et al. (High Energy Physics, Cavendish Laboratory, University of Cambridge, 200803)In this paper we describe Herwig++ version 2.3, a generalpurpose Monte Carlo event generator for the simulation of hard leptonlepton, leptonhadron and hadronhadron collisions. A number of important hard scattering ... 
New formalism for QCD parton showers.
Gieseke, Stefan; Stephens, Phil; Webber, Bryan R. (HEP, Cavendish Laboratory, University of Cambridge, 200310)We present a new formalism for parton shower simulation of QCD jets, which incorporates the following features: invariance under boosts along jet axes, improved treatment of heavy quark fragmentation, angularordered ... 
NLO corrections to the photon impact factor.
Gieseke, Stefan (HEP, Cavendish Laboratory, University of Cambridge, 200208)We review the program of the calculation of nexttoleading order corrections to the virtual photon impact factor. Following a brief introduction we present some technical aspects for the various contributions. ... 
NLO corrections to the photon impact factor: Combining real and virtual corrections.
Bartels, J.; Colferai, D.; Gieseke, Stefan; Kyrieleis, A. (HEP, Cavendish Laboratory, University of Cambridge, 200208)In this third part of our calculation of the QCD NLO corrections to the photon impact factor we combine our previous results for the real corrections with the singular pieces of the virtual corrections and present finite ... 
A PositiveWeight NexttoLeadingOrder Monte Carlo for e+ e Annihilation to Hadrons.
LatundeDada, Oluseyi; Gieseke, Stefan; Webber, Bryan R. (High Energy Physics, Cavendish Laboratory, University of Cambridge, 200612)We apply the positiveweight Monte Carlo method of Nason for simulating QCD processes accurate to NextToLeading Order to the case of e+e− annihilation to hadrons. The method entails the generation of the hardest gluon ...