ghit : Hit information utilities

Introduction

The ghit module provides a compact hit container (GHit) and supporting conventions (HitBitSet) for storing step-by-step and aggregated information from detector simulations.

A GHit records always-present per-step information:

• global and local positions
• energy deposited (optionally scaled by detector-specific multipliers)
• global time

It can also record optional per-step information controlled by HitBitSet (see ghitConventions.h : bit meanings and reserved future extensions).

Components

• GHit : hit container that accumulates per-step vectors and provides lazy derived quantities.
• HitBitSet : fixed-size bitset selecting optional hit information groups.
• ghitConventions.h : stable conventions for bit meanings and analysis expectations.

Examples

The module ships with an example program:

• ghit_example.cc : constructs a GTouchable, creates a GHit, generates randomized test hits, and compares them using GHit::is_same_hit().

Ownership and contacts

Author: © Maurizio Ungaro
e-mail: ungar.nosp@m.o@jl.nosp@m.ab.or.nosp@m.g

Note

This module does not define verbosity levels because it does not introduce any classes derived from glogger. Logging in the provided example is performed using GLogger.