README.md

Diffractive-Combinatorics

https://arxiv.org/abs/1910.06279

High Energy Diffraction at the LHC via Combinatorial (incidence) Algebra

Framework with novel constructions and algorithms:

• Unfolded multidimensional 'fiducial vector cross sections'
• Multivariate Maximum Likelihood fit extraction of the effective Pomeron intercept 1 + Δ
• Multivariate Maximum Likelihood fit extraction of the diffractive cross sections (SD, DD, ND) and the maximum diffractive mass dependence (minimum average rapidity gap size <ΔY>)
• Möbius inversion of pileup
• Multidimensional algebraic hierarchy of detector level distributions (raw multiplicity etc.) - highly constraining comparison with MC models, probing AGK rules / multipomeron cuts / soft multiparton interactions

For reference, you may cite the paper above.

[email protected], 2019

External dependencies:

• ALICE experiment software (FYI: algorithms here are fully experiment generic)
• RooUnfold (in /libs, no license)
• csv parser (in /libs, BSD-3 license)
• cxxopts CLI parser (in /libs, MIT license)

In general, one needs to modify Makefile a bit for your local installation. See Makefile for instructions.

Install

1. AliPhysics/AliROOT installation (ROOT5 based setup is tested to work)

Tested on Ubuntu 18

cd ~
mkdir alice && cd alice
aliBuild init AliPhysics && aliBuild build AliPhysics --defaults user -z aliroot5

2. Compile

Tested on Ubuntu 18

source setenv.sh
cd ./libs/RooUnfold && make && cd ../..
make superclean
make dictionary
make -j4

Reference

If you use this work in your research, please cite the paper:

@article{mieskolainen2019combinatorial,
    title={Combinatorial Superstatistics for Soft QCD},
    author={Mikael Mieskolainen},
    year={2019},
    journal={arXiv:1910.06279},
    eprint={1910.06279},
    archivePrefix={arXiv},
    primaryClass={hep-ph}
}