LiteRed2 MATHEMATICA package

LiteRed2 is conceived as an essential update of the LiteRed package by the same author (Roman Lee). Its purpose is the IBP reduction of the multiloop diagrams.

Please, check Discussions for announcements and feedback.

Installation

1. Copy the content of the 'Source/' directory to the desired location, say home/of/LiteRed2
2. Change to this location with cd home/of/LiteRed2
3. Run math -script makeShortcut.m

Result: You can load LiteRed2 package from Mathematica session with <<LiteRed2`

Additional tools

Using Mint package

Mint package is described in JHEP11 (2013) 165. It counts the number of master integrals in a given sector. It is distributed together with LiteRed2, file source/RNL/Mint.m. This file should be copied into \$UserBaseDirectory/Applications either manually or via running math -script installMint.m. When Mint is installed, it should be loaded via <<Mint` after LiteRed2 is loaded (as it detects the presence of LiteRed2 and adjusts its procedures correspondingly). Then Mint can be used via option NMIs->Automatic of SolvejSector procedure.

Using Fermat CAS

LiteRed2 can benefit from using Robert H. Lewis' Fermat CAS. The interface package Fermatica can be downloaded from Fermatica repository. When Fermatica is installed and working, it can be loaded along with LiteRed2 via <<Fermatica` and used via option UseFermat->True of SolvejSector procedure.