Beyond standard model calculations with Sherpa

The European Physical Journal C

Steffen Schumann¹  Frank Siegert²  Silvan Kuttimalai³  Stefan Höche⁴ 

[1] II. Physikalisches Institut, Universität Göttingen, Friedrich-Hund-Platz 1, 37077, Göttingen, Germany;Institut für Kern- und Teilchenphysik, TU Dresden, 01062, Dresden, Germany;Institute for Particle Physics Phenomenology, Durham University, DH1 3LE, Durham, UK;SLAC National Accelerator Laboratory, 94025, Menlo Park, CA, USA;

关键词: Parton Shower;    Spin Correlation;    Beyond Standard Model Theory;    Decay Cascade;    Squark Pair Production;   

DOI  :  10.1140/epjc/s10052-015-3338-4

来源: Springer

【 摘 要 】

We present a fully automated framework as part of the Sherpa event generator for the computation of tree-level cross sections in Beyond Standard Model scenarios, making use of model information given in the Universal FeynRules Output format. Elementary vertices are implemented into C++ code automatically and provided to the matrix-element generator Comix at runtime. Widths and branching ratios for unstable particles are computed from the same building blocks. The corresponding decays are simulated with spin correlations. Parton showers, QED radiation and hadronization are added by Sherpa, providing a full simulation of arbitrary BSM processes at the hadron level.

【 授权许可】

CC BY