Research data
LHE color tag history
Index raw event-local color tags and their declared mother-history coincidences.
Your inputs
Start with an exampleYour result
Example resultHow it works
Read the compulsory event and particle records exactly. Preserve color/anticolor slots without swapping incoming records. Expand valid first/last mother intervals and report shared-tag parent/child coincidences.
The four-particle example has eight tag occurrences. Tag 501 appears in two color slots; raw slot balance alone does not establish physical closure.
Limits
Extracted event blocks only: up to 100 events, 500 particles/event, 20000 particles and 20000 expanded mother references. LF/CRLF and finite decimal/E notation; full-file wrappers, XML extensions and D exponents are excluded. Invalid history stays unresolved without dropping tags. No PDG/kinematic/color-closure, junction reconstruction, generator-compatibility or physics-validity verdict.