HepMC2

HepMC2 is a C++ library designed for the Monte Carlo event generation used in high-energy physics. It serves as a standard format for the exchange of event information between different Monte Carlo event generators and other analysis tools. The library provides a flexible and efficient way to store and manipulate particle event data, making it an essential tool for researchers in the field.

The HepMC2 format is based on the HepMC1 format, but it includes several improvements and enhancements. One of the key features of HepMC2 is its ability to handle multiple vertices and particles, allowing for more complex event structures. This is particularly useful for simulations involving decays, interactions, and other particle processes.

HepMC2 also supports the storage of additional information, such as weights and attributes, which can be used for various analyses and studies. The library is designed to be lightweight and easy to integrate into existing software frameworks, making it a valuable resource for both experimental and theoretical physicists.

In summary, HepMC2 is a powerful and versatile tool for the storage and manipulation of particle event data in high-energy physics. Its ability to handle complex event structures and additional information makes it an indispensable resource for researchers in the field.