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Related papers: A new model for soft interactions in Herwig

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The Monte Carlo implementation of different approaches for diffractive scattering in $e - p$ collisions (resolved $\PO$, pQCD, soft color interactions) is described, with emphasis on the construction of the hadronic final state. Simple…

High Energy Physics - Phenomenology · Physics 2007-05-23 H. Jung

We present a new model for simulating exclusive final states in minimum-bias collisions between hadrons. In a series of papers we have developed a Monte Carlo model based on Mueller's dipole picture of BFKL-evolution, supplemented with…

High Energy Physics - Phenomenology · Physics 2011-10-21 Christoffer Flensburg , Gösta Gustafson , Leif Lönnblad

We briefly present the soft colour interaction models which are successful in reproducing a multitude of diffractive hard scattering data, and give predictions for diffractive Higgs production at the Tevatron and LHC. Only a few diffractive…

High Energy Physics - Phenomenology · Physics 2007-05-23 N. Timneanu , R. Enberg , G. Ingelman

Diffractive processes in photon-proton interactions at HERA offer the opportunity to improve the understanding of the transition between the soft, non-perturbative regime in hadronic interactions at $Q^2 = 0$ and the perturbative region at…

High Energy Physics - Phenomenology · Physics 2019-08-14 A. A. Savin

Herwig 7 is a general-purpose Monte Carlo generator of particle collisions comprising both hard perturbative as well as soft phenomenological physics. Herwig is therefore capable to describe the entire final state of hadronized particles in…

High Energy Physics - Phenomenology · Physics 2020-12-04 Johannes Bellm , Cody B. Duncan , Stefan Gieseke , Miroslav Myska , Andrzej Siodmok

In this paper we develop an approach to soft scattering processes at high energies,which is based on two mechanisms: Good-Walker mechanism for low mass diffractionand multi-Pomeron interactions for high mass diffraction. The pricipal idea,…

High Energy Physics - Phenomenology · Physics 2008-12-18 E. Gotsman , E. Levin , U. Maor , J. S. Miller

Soft colour exchange models give a unified description of both diffractive and non-diffractive events, such that e-p and p-pbar collider data with and without rapidity gaps are well reproduced. We show that these models also describe the…

High Energy Physics - Phenomenology · Physics 2007-05-23 N. Timneanu , G. Ingelman

HERWIG is a general-purpose Monte Carlo event generator, which includes the simulation of hard lepton-lepton, lepton-hadron and hadron-hadron scattering and soft hadron-hadron collisions in one package. It uses the parton-shower approach…

High Energy Physics - Phenomenology · Physics 2011-06-15 G. Corcella , I. G. Knowles , G. Marchesini , S. Moretti , K. Odagiri , P. Richardson , M. H. Seymour , B. R. Webber

We describe the implementation details of the colour reconnection model in the event generator Herwig++. We study the impact on final-state observables in detail and confirm the model idea from colour preconfinement on the basis of studies…

High Energy Physics - Phenomenology · Physics 2012-11-19 Stefan Gieseke , Christian Röhr , Andrzej Siódmok

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 parton-parton scattering model of the underlying event; the…

High Energy Physics - Phenomenology · Physics 2007-11-21 M. Bahr , S. Gieseke , M. Gigg , D. Grellscheid , K. Hamilton , O. Latunde-Dada , S. Platzer , P. Richardson , M. H. Seymour , A. Sherstnev , B. R. Webber

`Soft' high-energy interactions are clearly important in pp collisions. Indeed, these events are dominant by many orders of magnitude, and about 40% are of diffractive origin; that is, due to elastic scattering or proton dissociation.…

High Energy Physics - Phenomenology · Physics 2012-06-12 A. D. Martin , H. Hoeth , V. A. Khoze , F. Krauss , M. G. Ryskin , K. Zapp

A new release of the Monte Carlo event generator Herwig (version 7.3) has been launched. This iteration encompasses several enhancements over its predecessor, version 7.2. Noteworthy upgrades include: the implementation of a…

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 carried out using new…

High Energy Physics - Phenomenology · Physics 2009-11-10 Stefan Gieseke , Alberto Ribon , Michael H Seymour , Philip Stephens , Bryan Webber

Recent experimental data from MINERvA on transverse kinematics observables across four different nuclear targets - carbon, oxygen, iron, and lead - have been utilized to refine the modeling of final state interaction effects in the NuWro…

High Energy Physics - Phenomenology · Physics 2025-12-30 Hemant Prasad , Jan T. Sobczyk , Rwik Dharmapal Banerjee , J. Luis Bonilla , Krzysztof M. Graczyk , Beata E. Kowal , Artur M. Ankowski

This report contains selected recent highlights from experimental studies of soft and semi-hard strong interactions from the Large Hadron Collider, HERA and the Tevatron. The subject is broken down into diffractive and non-diffractive…

High Energy Physics - Experiment · Physics 2013-02-22 Paul Newman

We review the modelling of multiple interactions in the event generator Herwig++ and study implications of recent tuning efforts to Tevatron and LHC data. It is often said that measurements of the effective cross section for double-parton…

High Energy Physics - Phenomenology · Physics 2015-06-16 Michael H. Seymour , Andrzej Siodmok

The models for soft colour interactions and colour string re-interactions, implemented in the Monte Carlo program LEPTO, are investigated regarding hadronic final states in inclusive and diffractive deep inelastic scattering.

High Energy Physics - Phenomenology · Physics 2007-05-23 A. Edin , G. Ingelman , J. Rathsman

A new release of the Monte Carlo program Herwig++ (version 2.3) is now available. This version includes a number of improvements including: the extension of the program to lepton-hadron collisions; the inclusion of several processes…

High Energy Physics - Phenomenology · Physics 2008-12-03 M. Bahr , S. Gieseke , M. Gigg , D. Grellscheid , K. Hamilton , S. Platzer , P. Richardson , M. H. Seymour , J. Tully

We present a detailed description of a new hadronic multiparticle production model for use in neutrino interaction simulations. Its validity spans a wide invariant mass range starting from pion production threshold. This model focuses on…

High Energy Physics - Phenomenology · Physics 2009-11-19 T. Yang , C. Andreopoulos , H. Gallagher , K. Hoffmann , P. Kehayias

We describe the implementation of supersymmetric processes in the HERWIG Monte Carlo event generator. We define relevant parameter and mixing conventions and list the hard scattering matrix elements. Our implementation is based on the…

High Energy Physics - Phenomenology · Physics 2010-04-06 S. Moretti , K. Odagiri , P. Richardson , M. H. Seymour , B. R. Webber