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Title: QCD for Postgraduates (2/5)

Abstract

Modern QCD - Lecture 2 We will start discussing the matter content of the theory and revisit the experimental measurements that led to the discovery of quarks. We will then consider a classic QCD observable, the R-ratio, and use it to illustrate the appearance of UV divergences and the need to renormalize the coupling constant of QCD. We will then discuss asymptotic freedom and confinement. Finally, we will examine a case where soft and collinear infrared divergences appear, will discuss the soft approximation in QCD and will introduce the concept of infrared safe jets.

Authors:
Publication Date:
OSTI Identifier:
1025958
Resource Type:
Multimedia
Country of Publication:
CERN
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; QUARKS; QCD; INFRARED; COLLINEAR; DIVERGENCES; PARTON

Citation Formats

Zanderighi, Giulia. QCD for Postgraduates (2/5). CERN: N. p., 2010. Web.
Zanderighi, Giulia. QCD for Postgraduates (2/5). CERN.
Zanderighi, Giulia. Tue . "QCD for Postgraduates (2/5)". CERN. https://www.osti.gov/servlets/purl/1025958.
@article{osti_1025958,
title = {QCD for Postgraduates (2/5)},
author = {Zanderighi, Giulia},
abstractNote = {Modern QCD - Lecture 2 We will start discussing the matter content of the theory and revisit the experimental measurements that led to the discovery of quarks. We will then consider a classic QCD observable, the R-ratio, and use it to illustrate the appearance of UV divergences and the need to renormalize the coupling constant of QCD. We will then discuss asymptotic freedom and confinement. Finally, we will examine a case where soft and collinear infrared divergences appear, will discuss the soft approximation in QCD and will introduce the concept of infrared safe jets.},
doi = {},
journal = {},
number = ,
volume = ,
place = {CERN},
year = {2010},
month = {4}
}

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