Frashër Loshaj

TL;DR: A new release of the Monte Carlo event generator Herwig (version 7.2) is now available, which introduces a number of improvements over the major version 7.0, notably multi-jet merging with the dipole shower at LO and NLO QCD and spin correlations in both the dipoles and angular-ordered parton showers.

TL;DR: In this paper, the soft component of the Multiple Partonic interaction model is replaced by a refined model for soft gluon production in the Monte Carlo event generator Herwig and a new model for the simulation of diffractive final states, based on the cluster hadronization model in Herwig, is introduced.

TL;DR: In this article, the authors present a new model for soft interactions in the event-generator Herwig, which consists of two components: one to model diffractive final states on the basis of the cluster hadronization model and a second component that addresses soft multiple interactions as multiple particle production in multi-peripheral kinematics.

TL;DR: A new version of the Monte Carlo event generator Herwig (version 7.1) is available as discussed by the authors, which introduces a number of improvements, notably: multi-jet merging with the dipole shower at LO and NLO QCD; a new model for soft interactions and diffraction; improvements to mass effects and top decays in the diple shower, as well as a new tune of the hadronisation parameters.

TL;DR: In this article, it was shown that the propagating quark throughout the process of hadronization induces in the vacuum charged transition currents that lead to a strong resonant enhancement of the soft photon yield; the Low theorem however remains accurate in the limit of very soft momenta.