SampleFactory
Monte Carlo 샘플 생성과 관리를 위한 도구입니다.
기능 개요
- Event Generation: MadGraph, PYTHIA를 이용한 이벤트 생성
- Detector Simulation: Geant4 기반 CMS 시뮬레이션
- Reconstruction: CMSSW를 이용한 이벤트 재구성
- Sample Management: 생성된 샘플의 체계적 관리
생성 과정
1. Matrix Element 계산
- MadGraph5_aMC@NLO
- Process definition and parameter setting
- Grid pack generation
2. Parton Shower & Hadronization
- PYTHIA8 fragmentation
- Underlying event simulation
- Multiple interaction modeling
3. Detector Simulation
- CMS detector geometry
- Physics interactions in materials
- Electronics response simulation
4. Reconstruction
- Track reconstruction
- Calorimeter clustering
- Particle identification
- Higher-level object reconstruction
샘플 종류
- Signal samples: LRSM, extra dimensions
- Background samples: SM processes (W+jets, Z+jets, tt̄, diboson)
- Data-driven samples: QCD multijet, fake rate studies
품질 관리
- Cross-section validation
- Kinematic distribution checks
- Generator-level comparisons
- Systematic uncertainty evaluation