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Unraveling the Structure of Hadrons with Effective Field Theories of QCD

Authors: Stewart, Iain;

Unraveling the Structure of Hadrons with Effective Field Theories of QCD

Abstract

Effective Field theory is a powerful framework based on controlled expansions for problems with a natural separation of energy scales. This technique is particularly important for QCD, the theory of strong interactions, due to the vast diversity of phenomena that it describes. Stewart and collaborators have invented a new class of effective theories that can be used in processes with energetic hadrons. These Soft-Collinear Effective Theories provide a unified framework for describing hadronic processes which involve hard probes or the release of a large amount of energy. Many interesting issues about hadronic physics can be addressed with the soft-collinear effective theory. Examples include the size and shape of hadronic form factors, the universality of hadronic distribution functions for a plethora of processes, and the importance of subleading corrections at intermediate energy scales. Effective field theories allow these issues to be addressed using only the underlying symmetries and scales in QCD. Understanding these issues also has a direct impact on other areas of physics, such as on devising clean methods for the measurement of CP violation in the decay of B-mesons. Current progress on the soft-collinear effective theory and related methods is discussed in this report.

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United States
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Keywords

Distribution Functions, Form Factors, General Physics, Physics, 73 Nuclear Physics And Radiation Physics, Shape, Field Theories, Quantum Chromodynamics (Qcd) Effective Field Theory Fundamental Symmetries, Decay, Hadrons, 72 Physics Of Elementary Particles And Fields, B Mesons, Quantum Chromodynamics, Probes, 71 Classical And Quantum Mechanics, Strong Interactions Quantum Chromodynamics (Qcd) Effective Field Theory Fundamental Symmetries

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average