Automation of the matrix element reweighting method

Abstract

Matrix element reweighting is a powerful experimental technique widely employed to maximize the amount of information that can be extracted from a collider data set. We present a procedure that allows to automatically evaluate the weights for any process of interest in the standard model and beyond. Given the initial, intermediate and final state particles, and the transfer functions for the final physics objects, such as leptons, jets, missing transverse energy, our algorithm creates a phase-space mapping designed to efficiently perform the integration of the squared matrix element and the transfer functions. The implementation builds up on MadGraph, it is completely automatized and publicly available. A few sample applications are presented that show the capabilities of the code and illustrate the possibilities for new studies that such an approach opens up.

41 pages, 21 figures

References in corpus (3)

• PYTHIA 6.4 Physics and Manual
• Measurement of the top quark mass in the lepton+jets final state with the matrix element method
• Maximum Significance at the LHC and Higgs Decays to Muons

Cited by in corpus (7)

• Supergravity Instabilities of Non-Supersymmetric Quantum Critical Points
• Gauged L_mu - L_tau and different Muon Neutrino and Anti-Neutrino Oscillations: MINOS and beyond
• Amplitudes for the n = 3 moment of the Wilson operator at two loops in the RI/'SMOM scheme
• General analysis of signals with two leptons and missing energy at the Large Hadron Collider
• Fermions Analysis of IR modified Horava-Lifshitz gravity: Tunneling and Perturbation Perspectives
• Matrix Element Method in HEP: Transfer Functions, Efficiencies, and Likelihood Normalization
• Vacua of N=10 three dimensional gauged supergravity