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Kränkl, Susanne: Non-leptonic B decays in QCD factorizationNicht-leptonische B-Zerfälle in QCD Faktorisierung. 2015
Inhalt
Abstract
Contents
Introduction
Exclusive Non-leptonic B Decays
QCD Factorization
Factorization Formula for Two-body Decays
BD in QCDF
QCDF for Three-body Decays
Alternative Approaches
Effective Hamiltonian for Weak Decays
NNLO corrections to the decay BD
Soft Collinear Effective Theory and Matching
Introduction to SCET
Scaling of the Fields
Leading Power SCET Lagrangian
BD in SCET
Derivation of the Master Formula
Matching
Perturbative Contributions
Tree-level and One-loop
Two-loop
Simplification of the Two-loop Amplitudes
Passarino-Veltman Decomposition
Scalar Integrals
Integration by Part Identities and Laporta Algorithm
Reduction of Dirac Matrices to Operators
Evaluation of the Master Integrals
The Master Integrals
Feynman Parameters and Hypergeometric Functions
Mellin-Barnes Representation
Numerical Evaluation with MB.m
Automated Derivation of MB Representations with AMBRE.m
Differential Equations
Harmonic Polylogarithms and HPL.m
Evaluation of the Integrals
Differential Equations and Canonical Basis
Goncharov Polylogarithms
Canonical Basis
Solving Differential Equations
Checks
Results and Phenomenological Applications
Hard Scattering Kernels
Renormalization Factors and Matching Coefficients
Discussion of the Results for the Hard Kernels
Perturbative Amplitude a1
Hadronic Matrix Elements and Definition of a1
Results and Dependence on Input Parameters
Branching Ratios
Factorization Tests
Ratios of Non-leptonic Decay Rates
Ratios of Non-leptonic and Semi-leptonic Decay Rates
Summary and Discussion
B in QCD factorization
Three-body Decays from QCD
Identifying Regions in the Dalitz Plot
Factorization Formula
Generalized Form Factors and Distribution Amplitudes
Two-pion Distribution Amplitude
Generalized Form Factor
The Central Region of the Dalitz Plot
Leading Order Feynman Diagrams
Differential Decay Rate
The Collinear Regions of the Dalitz Plot
Reconstructing the Dalitz Plot
Conclusion and Outlook
Appendix
Laporta Reduction of a Sample Feynman Diagram
Reduction of the bold0mu mumu dest-matrix Algebra to Operators
Part I: Simplification by a Mathematica Routine
Part II: Reduction to Known Operators
Examples for the Reduction
Results for the Master Integrals
Examples of Evaluating Master Integrals
Hypergeometric Functions: M15
MB Representations: M23 and M18
"Manual" Evaluation of M23
Evaluation of M18 by Using AMBRE.m
Differential Equations: M4 and M5
Canonical Basis: M6 and M7
Useful Identities and Definitions for Evaluating Integrals
Identities for Calculating Feynman Diagrams
Cauchy's Residue Theorem and Barnes Lemmas
Results for the Feynman Diagrams in the Central Region of the Dalitz Plot
Bibliography
Publications and Proceedings
Acknowledgements