CalcHEP 2.3: MSSM, structure functions, event generation, batchs, and generation of matrix elements for other packages

TL;DR

CalcHEP 2.3 enhances particle physics computations by automating Feynman diagram calculations, supporting MSSM models, structure functions, event generation, batch processing, and interfacing with other software tools.

Contribution

Introduction of new features in CalcHEP 2.3, including MSSM models, structure functions, event generation, batch processing, and code generation for external programs.

Findings

MSSM model implementation with SUGRA scenarios

Integration with PYTHIA for event generation

Support for new structure functions and batch calculations

Abstract

CalcHEP is a package for computation of Feynman diagrams and integration over multi-particle phase space. The main idea prescribed into CalcHEP is to make available passing on from Lagrangians to the final distributions effectively with a high level of automation. This article presents new options of CalcHEP available in version 2.3. They are a) MSSM model with different SUGRA scenarios, b) interface with PDFLIB and implementation of new MRST/CTEQ structure functions, c) realization of approach to structure functions for models with diagonal CKM, d) generation of events and interface with PYTHIA, e) calculations in non-interactive (batch) regime, f)generation of code of different matrix elements for other programs, g) many new interface facilities.