IT05-2013-008741
Abstract Submitted
for the IT05 Meeting of
The American Physical Society
Sorting Category: 1.0 (T)
From Yang-Mills Field to Perturbative Quantum Chromodynamics YAO MA, Stony Brook University — Quantum Chromodynamics (QCD), which is based on non-Abelian gauge theory, describes
interactions between quarks and gluons inside hadrons. Being an essential part of Standard Model (SM), it has two distinctive properties:
one is asymptotic freedom, which means that quarks-and-gluons interaction is weak at high energy, while the other is confinement, which
means that at low energy force between quarks becomes stronger as the
distance increases. In this talk, I will start from a very basic theory,
the Abelian electromagnetic gauge theory, and then generalize it into
the non-Abelian case in a geometric thought and obtain the QCD Lagrangian. Then I will introduce some basic QCD concepts, such as confinement, asymptotic freedom, running of the QCD coupling as well as
QCD jets, Experiment results are also introduced for discussion. Finally
as an effective method to calculate R-ratio in electron and anti-electron
annihilation, perturbative QCD is introduced although there are some
limitations.
X
Prefer Oral Session
Prefer Poster Session
Date submitted: 28 Oct 2013
Yao Ma
yao.ma@stonybrook.edu
Stony Brook University
Electronic form version 1.4