Light-front field theory in the description of hadrons
| Autor: | Chueng-Ryong Ji |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Physics
Quantum chromodynamics Particle physics 010308 nuclear & particles physics QC1-999 High Energy Physics::Lattice media_common.quotation_subject High Energy Physics::Phenomenology Hadron 01 natural sciences Asymmetry Momentum Pion Singularity 0103 physical sciences Effective field theory High Energy Physics::Experiment Field theory (psychology) 010306 general physics media_common |
| Zdroj: | EPJ Web of Conferences, Vol 137, p 05008 (2017) |
| ISSN: | 2100-014X |
| Popis: | We discuss the use of light-front field theory in the descriptions of hadrons. In particular, we clarify the confusion in the prevailing notion of the equivalence between the infinite momentum frame and the light-front dynamics and the advantage of the light-front dynamics in hadron physics. As an application, we present our recent work on the flavor asymmetry in the proton sea and identify the presence of the delta-function contributions associated with end-point singularities arising from the chiral effective theory calculation. The results pave the way for phenomenological applications of pion cloud models that are manifestly consistent with the chiral symmetry properties of QCD. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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