A general framework for implementing NLO calculations in shower Monte Carlo programs: the POWHEG BOX

TL;DR

The paper introduces the POWHEG BOX, a versatile software framework that facilitates the implementation of next-to-leading order calculations in shower Monte Carlo simulations, streamlining high-energy physics computations.

Contribution

It provides a comprehensive, user-friendly framework for integrating NLO calculations into Monte Carlo programs using the POWHEG method, with detailed organization and usage instructions.

Findings

The POWHEG BOX simplifies NLO implementation in Monte Carlo simulations.

It offers a modular and adaptable code structure.

The framework enhances accuracy and efficiency in high-energy physics event generation.

Abstract

In this work we illustrate the POWHEG BOX, a general computer code framework for implementing NLO calculations in shower Monte Carlo programs according to the POWHEG method. Aim of this work is to provide an illustration of the needed theoretical ingredients, a view of how the code is organized and a description of what a user should provide in order to use it.